IBM 220 manual

IBM IB M ® xS eri e s 2 2 0 Us er ’ s Re feren c e SC06-P460-70[...]

First Edition (O ctober 2000) © Copyright Interna tional Business Machines Corporation 2000. All rights reserve d. US Govern me nt Use rs Rest ric t ed Righ ts – Use, dupli cati o n or dis cl osur e restricted b y GSA ADP Sc h edu le Contra ct with IBM Corp.[...]

© Copyright IBM Corp. 2000 iii Contents Safet y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Chapter 1.Introduci ng the IBM xSe rie s 220 1 Featu res a nd specifications . . . . . . . . . . . . . . . . . . . . . . . . 2 Notice s used in this book . . . . . . . . . . . . . . . . . . . . . . . . . . 3 What y ou r xSeries 220 o ffers .[...]

iv IBM ® xSeries 22 0 User ’ s Refer e nc e Novell NetW are or IntraNetW are server ODI driver teami n g messages . . . . . . . . . . . . . . . . . . . . . . . . . 108 NDIS 4.0 (W indows NT) dr iver messages . . . . 109 Replacing the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 13 Getting help, service, and i nformation. . . .[...]

© Copyright IBM Corp. 2000 v Safety Before installing th is product, read the Safety In formation book . Antes de instalar este produto, leia o Manual de Informa çõ es s obre S eguran ç a. L æ s h æ ftet med sikk er hedsforskrifter , f ø r du inst aller er det te pro dukt. Lue Safety Information -kirjanen, enne n kuin asennat t ä m ä n tuo[...]

vi IBM ® xSeries 22 0 User ’ s Refer e nc e Lees voordat u dit product installeert eerst het boekje m et veiligheidsvoorschrif ten. Les heftet om sikker hetsinformasjon (Safety Information) f ø r du installerer dette produktet. Antes de instala r este pr oduto, leia o f olheto Informa çõ es sobre Seguran ç a. Antes de instalar este producto,[...]

vi i Stat ement 1 Dang er Electrical cur rent from power , telephone, and commu nication cabl es is hazardous. T o avoid a shock hazar d: • Do not connect o r disconnect any cables or per form install ation, maintenance, o r reconfigurat ion of this product during an electr ical storm. • Connect all p o wer cords to a properly wired an d g roun[...]

viii IBM ® xSeries 220 Use r ’ s Ref erence Stat ement 2 CAUTION: When replacing t he lithium batter y , use only IB M Part Number 3 3 F8354 or an equivalent type battery r e commended by the manufacture r . If your sy stem has a module containi ng a lithium battery , replace i t only with the same module type made by the same manuf actur er . T[...]

ix Stat ement 4 ≥ 18 kg (39.7 lbs) ≥ 32 kg ( 70.5 lbs ) ≥ 55 kg ( 121.2 lbs) CAUTION: Use safe practi ces when lifting. Stat ement 5 CAUTION: The power c ontrol button o n the device and the power switch on the power supply do not turn of f the electrical curr ent supplied to the device. The device also might have more than one power cord. T [...]

x IBM ® x Series 220 User ’ s Ref e r ence[...]

© Copyright IBM Corp. 2000 1 Chapter 1. Introducing the IBM xSeries 220 Yo u r I B M ® xSeries 220 delivers gr eat value for entry server applications. It is ideally su ited for netw orking environments tha t r equire superior microprocessor performance, efficient memory management , flexibility , and la r g e amounts of reliable data storage. Y [...]

2 IBM ® x Series 22 0 Us er ’ s Refe r ence Features and specifications T able 1 pro vi des a s ummary of the features a nd specifications of your xSeries 220 server . *KB equals appr oxim ately 1000 bytes. MB equals appro ximately 1000000 bytes. GB equals a pproxi m ately 10000000 00 bytes. Microprocess or: • Intel ® Penti um ® III micropr [...]

Chapter 1. Int ro ducing the IBM xS eri es 220 3 Notices used in this book The caution an d danger notices a lso appear in the m ultilingual Safe ty Information book provided on the IBM xSer i es Docu men tat i on CD that comes wi th your xSeries product. Each notice is numbered for easy re ference to the corres ponding notices in the safety book. [...]

4 IBM ® x Series 22 0 Us er ’ s Refe r ence • IBM ServerGuide ™ CDs The ServerGuide CDs that ar e included with your server provide pr ograms to help you set up your server and in stall the network opera tin g system (NOS). The ServerGuide program detects the hardware options that are installed and provides th e c orr ect configuration progr[...]

Chapter 1. Int ro ducing the IBM xS eri es 220 5 Serve r contro ls and ind icators This section identifies the controls and indicators on the front of your server . CD-ROM eject button: Pr ess this button to release a CD fr o m the drive. CD-ROM drive activity lig ht: When this ligh t is on, it indicates that the CD -ROM drive is in use. Diskette- [...]

6 IBM ® x Series 22 0 Us er ’ s Refe r ence Cover -release lat ch: Slide this lever to r el e ase the cover . Key lock: Use the key that comes wi th your server to unlock the cover . K ey lock Cov er-release latch[...]

Chapter 1. Int ro ducing the IBM xS eri es 220 7 T urni ng on the server T urning on the server refers to the act of plugging the power cord of your server into the power so urce and star tin g the operating sy stem. After you plug the power cord of your server into the power supply and a n electrical outlet, the server can start in any of the foll[...]

8 IBM ® x Series 22 0 Us er ’ s Refe r ence T urning off the server T urning off the server r e fers to the act of disconnecting the server from the power source. Y ou can turn off the serv er in any of the fo llow ing ways: • Y ou can press the power-control button on the top of the server . This starts an orde rly shutdown of the operating s[...]

© Copyright IBM Corp. 2000 9 Chapter 2. Arranging your workspace T o get the most from your server , arrange both the equipment you use and your work area to suit your needs and the kind of work you do. Y our comfort is of foremost importance, but light sources, air circulati on, and the loca tion of electrical outlets also can affect the way you [...]

10 IB M ® xSerie s 22 0 User ’ s Refe re n ce Place the server and monitor so that nothing blocks the air vents; usually , 15 cm (6 inches) of air spac e is su fficient. Also, make sure that the vented air is not blowi ng on someone else. Electri cal outlets and cable lengths The location of electri cal outlets and the length o f power cords and[...]

© Copyright IBM Corp. 2000 11 Chapter 3. Configuring your server The following configuration programs are pr ovided wit h your server: • Configurat ion/Setup Ut ility This pr o gra m is par t of th e basic input /output sy stem ( BIOS ) code that comes w ith your server . Y ou can use this program to configure serial and parallel port assignment[...]

12 IB M ® xSerie s 22 0 User ’ s Refe re n ce Notes: a. Y ou can set an adm i nistrator pass word thr ough the Confi guration /Setup Utility program only if th e optional system -m an agement adapter is in stalled in your server . b. If you have set both levels of passw ords (use r an d ad mi nistrator), y ou m ust type the adminis trat or passw[...]

Chapter 3. C on fig uring your serv er 13 Configuratio n/Setup Utility ma in menu. — Product Data Select this choice to view system information, such as the machine type and model, the server serial number , and the r evision level or issue date of the BIOS that is stored in the flash electrically erasable p rogramma b le R OM (EEPROM). • Devic[...]

14 IB M ® xSerie s 22 0 User ’ s Refe re n ce defaults can on ly be loaded from the Configura tio n/Setup Utilit y main menu. Y ou can enable a viru s-detection test that checks for chan ges in the master boot recor d at startup. Y ou also can select to run POST in the enhanced mode or the quick mod e. • Advanced Se tup Select this choice to c[...]

Chapter 3. C on fig uring your serv er 15 configuratio n informati on. This usually result s in automati c configuration of a PC I devi ce. Attentio n: Y ou must use t he menu selections to save custom se ttings for the PCI Slot/Device Informat ion choice. The Save Settings , Restore Se tti n gs , and Load De fault Settings choices on the main menu[...]

16 IB M ® xSerie s 22 0 User ’ s Refe re n ce • Remove the battery and then reinstall the battery . Setting t he password-override switch: The follo wing illustratio n shows the loca tion of the password-override switch (switch 8, which is the switch farthest to the right, on switch block 1) on the system boar d. T o set the pass word-overri d[...]

Chapter 3. C on fig uring your serv er 17 Using the SCSISelect Util i ty program SCSISelect is a buil t- in, menu-driven configu ration utilit y program that yo u can use to: • V iew the default SCSI IDs • Locate and correct configuration conf lict s The following sections provide instructions f or st arting the SCSISelect U tility and descript[...]

18 IB M ® xSerie s 22 0 User ’ s Refe re n ce 5. Follow the in structions on the screen to change the settings o f the selected items; then, press Enter . Choices avail able from the SCSISel ect menu The following choices appear on the S CSISelect Utility me nu: • Configu re/V iew Host Adapter Set tings Select this ch oice to view or change th[...]

Chapter 3. C on fig uring your serv er 19 Using the PXE Boot Age nt Utility program The Preboot eXecution Envir onment (PXE) Boot Agent is a built-in, menu-driven configuratio n uti lity program that you can use to: • Chan ge net work s tartup (boo t) pr otocol s • Change netwo rk startup (boot) order • Set men u wait times • Select operati[...]

20 IB M ® xSerie s 22 0 User ’ s Refe re n ce • Setup time w ait menu Select this choi ce to set the amount of time (in secon ds) that the system wil l pause during ini tialization for a Ctrl+ S input. — 2 se conds ( defa ult) — 3 seco nds — 5 seco nds — 8 seco nds • Legacy OS wake up s upport Select this choice to allow/disallow a n[...]

© Copyright IBM Corp. 2000 21 Chapter 4. Using the ServerGu ide CDs The ServerGuid e CDs include easy -to-use sof tware setup and install ation tools that are specifically designed for your IBM server . The ServerGuide Setup an d Installation prog ram detects the server model and h ardwar e options that are i nstalled and uses that informatio n du[...]

22 IB M ® xSerie s 22 0 User ’ s Refe re n ce Setup and configuratio n overview When you use the Setup and Ins tallation CD, you do not need setup diskettes. Y ou can use the CD to configure any supported IBM server model. The setup program checks your system BIOS, service pr o cessors, and other system hardwar e to determine if system updates a[...]

Chapter 4. Using the Ser verGuide CDs 23 • ServerGuide display s cho ices for running the configurat ion pr ograms. Fo r example: — The Expr ess Configuration method runs the r equired program s for your server , based on the hard ware that is detected. — The Custom Con figuration method d is plays all programs that are available for your ser[...]

24 IB M ® xSerie s 22 0 User ’ s Refe re n ce Note: Exact features an d functions can vary with dif ferent versions of the ServerGuide softwar e. • After you have com pleted the set up process, the operatin g system inst allation program starts. (Y ou will need your copy of the NOS CD to complete the installatio n.) • ServerGuide stor es inf[...]

Chapter 4. Using the Ser verGuide CDs 25 Additional programs included wit h ServerGui de As a convenience, ServerGuide comes wi th additional software to assist you with the server installa tion. A variety of powerful applications ar e included with ServerGuide. Of ferings can vary with the different versions of the S erverGuide softwa re. Check th[...]

26 IB M ® xSerie s 22 0 User ’ s Refe re n ce[...]

© Copyright IBM Corp. 2000 27 Chapter 5. Installing options This chapter provides instructions to help you add option s to your server . Some option-removal instructions ar e provided, in case you need to remove o ne option to install another . For a list of supported options for your server , see the ServerPro ven list at: http://www .ibm.com/pc/[...]

28 IB M ® xSerie s 22 0 User ’ s Refe re n ce System board The illustrations in the following sections show the components on the system board. System-board option connectors The following illustration identifies syst em- board connectors for user-instal lable option s. Notes: 1. If your server a nd operating sys tem support syste m -managemen t[...]

Chapter 5. Inst al lin g options 29 System-board internal cable connectors The following illustration id enti fies system-boa r d connect ors for internal cables. System-board exter n al port connectors The following illustration identi fies the external port connectors o n th e r ear of the server . Note: For information on adding external SCSI de[...]

30 IB M ® xSerie s 22 0 User ’ s Refe re n ce System-board jumpers and s witches The following illustration id entifies the jumpers a nd switches on the sys tem board. System-board jumpe r blocks Any jumper blocks on the system boar d that ar e not shown in the illustration are res erved. For normal operation of the system, no jumpers should be [...]

Chapter 5. Inst al lin g options 31 Before you begin Before you begin to insta ll o ptions in you r se rver , read the following information: • Become famil iar with the saf et y an d handling gu idelines under “ Hand ling static-sensiti ve devices ” , and read th e safety statements in “ Safety inf o rmation ” on page 32 . These guidelin[...]

32 IB M ® xSerie s 22 0 User ’ s Refe re n ce Safety information Before installing th is product, read the Safety In formation book . Antes de instalar este produto, leia o Manual de Informa çõ es s obre S eguran ç a. L æ s h æ ftet med sikk er hedsforskrifter , f ø r du inst aller er det te pro dukt. Lue Safety Information -kirjanen, enne[...]

Chapter 5. Inst al lin g options 33 Les heftet om sikker hetsin formasjon (Safety Information) f ø r du installerer dette produktet. Antes de instala r este pr oduto, leia o f olheto Informa çõ es sobre Seguran ç a. Antes de instalar este producto, lea la Informaci ó n de Seguridad. L ä s s ä ker hetsi nform ationen innan du i nsta llerar de[...]

34 IB M ® xSerie s 22 0 User ’ s Refe re n ce Stat ement 1 Dang er Electrical cur rent from power , telephone, and commu nication cabl es is hazardous. T o av oid a shock hazard : • Do not connect o r disconnect any cables or per form install ation, maintenance, o r reconfigurat ion of this product during an electr ical storm. • Connect all [...]

Chapter 5. Inst al lin g options 35 Stat ement 2 CAUTION: When replacing t he lithium batter y , use only IB M Part Number 3 3F8354 or an equivalent type battery r e commended by the manufacture r . If your sy stem has a module containi ng a lithium battery , replace i t only with t he same module type made by the same manuf actur er . The battery [...]

36 IB M ® xSerie s 22 0 User ’ s Refe re n ce Stat ement 4 ≥ 18 kg (39.7 lbs ) ≥ 32 kg ( 70.5 lbs ) ≥ 55 kg ( 121.2 lbs) CAUTION: Use safe practi ces when lifting. Stat ement 5 CAUTION: The power c ontrol button o n the device and the power switch on the power supply do not turn of f the electrical curr ent supplied to the device. The devi[...]

Chapter 5. Inst al lin g options 37 Rotating the stabilizing feet The feet attached to the bottom cover rotate 90 degrees to pr ovi de additional stability for your server . Place the server in an uprigh t posi tion; then, rotate the feet a quarter turn away from the server . Carefully po siti on the server on its feet. When you need to access the [...]

38 IB M ® xSerie s 22 0 User ’ s Refe re n ce Removing the side cover The following information describes h ow to remove the side cover . Note: The illustra tions in this docu ment might differ slightly from your hardware. T o rem ove the side cover fr o m the server , do the following: 1. Review the information in “ Before y ou b eg in ” on[...]

Chapter 5. Inst al lin g options 39 Removing the support bracket assembly When working with some options such as hard disk drives and microprocessors, you must first remove the support bracket ass embly to access the location of the o ption. The support bracket assembly consists of a support bracket, an air baff le, and a fan . T o remove the suppo[...]

40 IB M ® xSerie s 22 0 User ’ s Refe re n ce 8. Store the support bracket assembly in a safe place. Wor k ing with adapters Y ou can install u p to five peripheral component in ter connect (P CI) adapters in the PCI slots on the system boar d of your server . See the xSeries 220 ServerPr oven list at http://www .ibm.com/pc/compat/ for a list of[...]

Chapter 5. Inst al lin g options 41 The syst em sca ns PCI sl ots 1 thr ough 5 to assig n system r esour ces; then, the system st arts (boots) the PCI de vice s in the followi ng order: PCI slots 1 and 2, system bo ard SCS I devices, an d then PCI slots 3 through 5. • If you plan to use t he W ake on LAN (WOL) function in the s erver , you must i[...]

42 IB M ® xSerie s 22 0 User ’ s Refe re n ce 3. Carefully remove the support brac ket assembly from the server (s ee “ Removi ng the support brac ke t a ssembly ” on page 39). Stor e the cover and th e support brack et asse mbly in a sa fe plac e. 4. Determine which PCI slot you will use for the adapter . Note: Check the instructions that c[...]

Chapter 5. Inst al lin g options 43 12. Connect any needed cables to the adapter . Attentio n: Route cables so that they do not block the flow of air fr o m the fans. The following illustration sho ws how to reroute the SCSI cable. If you install a ServeRAID adap ter and intend to use it with hot-swap hard dis k drives, remove the cable fr om the i[...]

44 IB M ® xSerie s 22 0 User ’ s Refe re n ce Instal li ng internal drive s Diff erent types of drives enable your system to read multiple types of media and store more da t a. Several types of dr i ves ar e available, such as: • Diskette (preinstalled) • Har d disk (pr einstalled on some models) • CD-ROM (p reinstalled ) • Ta p e Intern[...]

Chapter 5. Inst al lin g options 45 drives. Refer to the documentation that comes with your server fo r additional informatio n. Y our server supports four 1- inch (26 mm) slim, 3. 5-inch SCSI hard disk drives in the hard di sk drive bays (4 , 5, 6, and 7). Y o u can install four non-hot-swap hard disk drives in the models that have the standar d n[...]

46 IB M ® xSerie s 22 0 User ’ s Refe re n ce Installi ng a drive in bay 1, 2, 3, or 4 T o instal l a d r ive in bay 1, 2, 3, or 4, do the fol lowing: 1. Read the in formation in “ P r einstalla tio n steps (all bays ) ” on page 45. 2. T urn off the server and peripheral devices ; then, remove th e side cover (see “ Removing the side cover[...]

Chapter 5. Inst al lin g options 47 5. If the drive is a laser product, observe the follow ing safety precaution. 6. T ouch the sta tic- p rotective bag containin g the drive to any unpainted metal surface on the server ; then, remove th e drive from the bag and place it on a static- protective su rface. 7. Set any jumpers or switches on the drive [...]

48 IB M ® xSerie s 22 0 User ’ s Refe re n ce Installi ng a non-hot-swap hard disk dri ve in bay 5, 6, or 7 T o instal l a n on-hot-swa p ha r d disk drive in bay 5, 6, or 7, do the follow ing: 1. Read the in formation in “ P r einstalla tio n steps (all bays ) ” on page 45. 2. T u rn of f the server and peripher al devices, and discon nect [...]

Chapter 5. Inst al lin g options 49 9. If you have other options to instal l or remove, do s o now; otherwise, r eplace the support bracket assembly; then, go to “ Installing th e side cover ” on page 60. Note: If your server is a hot- swap model, reinstall the VRM in conn ector J 42 after you reinstall the suppo rt bracket assembly . (S ee “[...]

50 IB M ® xSerie s 22 0 User ’ s Refe re n ce Note: The hard disk drive acti vity l ight and hard disk drive status light on the backplane match the har d disk drive activity light and hard disk drive status light on the hot-swap drive. The following illustration sho ws the rear connectors on the ho t-s wa p - drive backplane, as viewed fr om th[...]

Chapter 5. Inst al lin g options 51 Note: Y ou do no t have to turn off the server to insta ll hot-swap hard disk drives in these bays. 3. Remove the filler panel from one of the empty hot-swap bays by inserting your finger into the d ep ression at th e le ft s id e of the f iller pa nel and pulling it aw ay fro m the server . 4. Install the hard d[...]

52 IB M ® xSerie s 22 0 User ’ s Refe re n ce Attentio n: Wh en you handle electrostatic discharge (ESD) sensiti ve devices, take precautions to avoid damage fr om static electricity . For details on handling these devices, see “ Handling static-sen siti ve devices ” on page 31. T o instal l a DIMM, do the fo llo wing: 1. Review the safety p[...]

Chapter 5. Inst al lin g options 53 • If you installed additio na l mem ory , start the Config uration /Setup Utili ty program an d select Save Settings . • If you just replaced a failed DIMM , you must start the Co nfiguration /Setup Utility program, select Advanced Setup , select Memo ry Settin gs , highlig ht the connector or bank of connect[...]

54 IB M ® xSerie s 22 0 User ’ s Refe re n ce Installi ng and removing a microprocessor Y our server comes with one microprocessor , which is installed on the system bo ar d. If you instal l an addition al microprocessor kit, your server can operate as a sym metric multiprocessing (SMP) server . W ith SMP , certain operati ng systems and app lic[...]

Chapter 5. Inst al lin g options 55 bracket assembly in a safe place. 4. Lift the r el ease lever an d remove th e terminator car d from the micropr ocessor connector . 5. Install the micropr o cessor: a. T ouch the static-protective package containing the new micro processor to any unpainted metal surface on the server; then, rem o ve the micr opr[...]

56 IB M ® xSerie s 22 0 User ’ s Refe re n ce 8. If you are inst alling a microprocess or that has a s peed l ower than 93 3 MHz, instal l the heat sink onto the micr oprocessor: a. Peel the plastic protective strip off the bottom of the heat s ink. Make sure that the square of thermal material is still on the bottom of the heat sink. b. Align a[...]

Chapter 5. Inst al lin g options 57 9. If you ar e in stalling a micropr ocessor that has a s peed of 933 MHz or higher , inst al l a fa n sink ont o t h e mi c r opr oc e ss or and conn ec t the fan-sink po wer cable t o the system boar d: a. Peel the plastic protective strip off the bottom of the fan sink. Make sure that the square of thermal mat[...]

58 IB M ® xSerie s 22 0 User ’ s Refe re n ce (2) If you installed the micropr ocessor in connector U12, pr ess down on the latches on either side of connector J42 , and in stall the VRM in connector J42. Note: If yo ur server is a hot-sw ap model, reinstall the VRM in connector J42 after you reinstall the suppo rt bracket assembly . b. Make sur[...]

Chapter 5. Inst al lin g options 59 d. Disconnect the fan-sink power cable fro m the appro pri ate connector o n the system boar d: • If you are removing the micr oprocessor fr om connector U1 1, disconnect the fan-sink power ca ble from conne ctor J2. • If you are r emovin g the micro pr o cessor fr om co nnector U12, disconnect the fan-sink p[...]

60 IB M ® xSerie s 22 0 User ’ s Refe re n ce Installi ng the side cover The following information de scribes th e cover installation pr ocedure. Note: The illustra tions in this docu ment might differ slightly from your hardware. Note: If you remove d th e suppo rt bracket ass embly after you removed the cover , reinstall it before you ins tal [...]

Chapter 5. Inst al lin g options 61 Connecting external options Y ou can attach a SCSI storage expansion enclosure to your server if you install an option al SCSI ada p te r in one of th e five PCI ada pter slots on the system bo ard. Installation procedure T o attach an external device, do th e following: 1. Read “ Bef or e you begi n ” on pag[...]

62 IB M ® xSerie s 22 0 User ’ s Refe re n ce Input/ou tput ports This section provides informa tion about the inpu t/output (I/O) po rts on your server . These ports include the following: • One parallel port • One v ideo por t • One keyboard port • One auxiliary poin tin g-device (mouse) port • T wo serial ports • T wo Univers al S[...]

Chapter 5. Inst al lin g options 63 Parallel port connector The followin g table shows the pin -number assignm ents for the 25 -pin, female D-shel l parallel-port connector on the r e ar of the server . Serial ports Y our server ha s tw o stand ard seri al (communi cation) ports: se rial port A and se ria l port B. Some application pr og rams requi[...]

64 IB M ® xSerie s 22 0 User ’ s Refe re n ce Configuratio n/Setup Utility program to ch an ge serial port address assignmen ts to prevent or r esolve address conflicts. Vi ewing or changing the serial-port assignments T o view or change the serial-port assignments, do the following: 1. Restart the server and watch the monitor scr een. 2. When t[...]

Chapter 5. Inst al lin g options 65 USB technology pr o vides up to 12 m egabits-per- s econd (Mbps) s peed with a maximum of 127 external devi ces and a maxi mum sign al dista nce of five met ers (16 ft) per segmen t. USB-port connectors Each USB port has an external connector on the rear o f the server for attaching USB- compatible devices. The f[...]

66 IB M ® xSerie s 22 0 User ’ s Refe re n ce The following table shows the pin-n umber assignments for the auxiliary-device connector on the r ear of the server . V i deo port Y our server comes with a n in tegrated super video graphics arra y ( SV GA) video controller . This controller is not r emovable, but yo u can disable it by installi ng [...]

Chapter 5. Inst al lin g options 67 SCSI port Y our server has an integrated small computer system interface (SCSI) controller with an internal connector (J41) o n the system board. Th is contr oller supports an Ultra16 0 SCSI internal channel. This channel supports up to 15 SCSI devices. In addition, this controller uses: • Double-transi tion cl[...]

68 IB M ® xSerie s 22 0 User ’ s Refe re n ce SCSI connector pin-number assignments The following table shows th e pin-number assignments for the 68-pin SCSI connector . Pin Signal Pin Signal 1 +Da ta 12 35 -D ata 1 2 2 +Da ta 13 36 -D ata 1 3 3 +Da ta 14 37 -D ata 1 4 4 +Da ta 15 38 -D ata 1 5 5 +Da ta P1 39 -D ata P 1 6 +Data 0 40 -Data 0 7 +D[...]

Chapter 5. Inst al lin g options 69 Ethe rnet port Y our server comes with an integrated Ethernet contr oller . This contr o ller pr o vides an interface for connecting to 10-Mbps or 100-Mbps networks and pr o vides full-duplex (FDX) capabili ty , which ena b les s imultaneou s tran smission an d reception of data on the Ethernet local ar ea networ[...]

70 IB M ® xSerie s 22 0 User ’ s Refe re n ce Te a m i n g M o d e : Y our Ethernet controller provides o ptions, called teaming options . These options increas e throughput and fault tolerance when running with W in dows NT 4.0 o r NetW are 4.1x or later . • Adapter fa ult tolera nce (AF T) provides automat ic redundan cy for your adapter . I[...]

Chapter 5. Inst al lin g options 71 The requirements for ef fe ctively using IEEE 802.1p tag ging are: • The other devices r eceivi ng and r outi ng 802.1p tagged packets must support 802.1p . • The adapters on these devices m ust support 802.1p. The Ethernet contr oller in your xSeries 220 and all IBM Ne tfi nit y10/100 Ethe rnet S e curity A [...]

72 IB M ® xSerie s 22 0 User ’ s Refe re n ce T o join a VLAN fr om W indows NT 4.0: 1. Create a VLAN on the switch. Use the parameters that you assig n there to join the VLAN fro m the server . Refer to your switch documentation for mor e information. 2. In the Con trol Panel wi ndow , double-click th e Networ k icon. 3. On the Adapters tab, se[...]

© Copyright IBM Corp. 2000 73 Chapter 6. Solving problems This section provides basic troublesh ooting inform a tion to help you resolve som e common problems that might occur with your server . If you cannot loca te an d corr ect the problem using the inform ation in this s ection , ref e r t o “ Getting help, service, a nd informati on ” on [...]

74 IB M ® xSerie s 22 0 User ’ s Refe re n ce S er v er S uppor t After you register and profile , you will be able to: • Diagnose problems using the IBM Online Assistant • P ar ticipate in the IBM discussion forum • Receive e-mail notifications of technical updates related to your profiled products Register at: Profile at: http://www .ibm[...]

Chapter 6. Solvin g problem s 75 POST When you turn on the server , it performs a series of tests to check the operation of server components and some of the options installed in the server . This series of tests is called the power-on self-test, or POST . If POST finishes without detecting an y problems, a s ingle beep sounds, and the first window[...]

76 IB M ® xSerie s 22 0 User ’ s Refe re n ce Repeating short beeps The system board might co nta in a failing com ponent, your keyboard might be defective, or a key on the key boa r d might b e stuck. E ns ur e th at: 1. Nothin g is resting on the keyboa rd and pressing a key . 2. No key is st uck. 3. The keyboard cable is co nnected correctly [...]

Chapter 6. Solvin g problem s 77 POST beep codes Beep code D escription Action 1-1-2 Micr oprocessor re gister test has failed. Call for service. 1-1-3 CMOS write/read te st has fa iled. 1-1-4 BIOS ROM checksum h as failed. 1-2-1 Program mable Inter val T ime r test has fa iled. 1-2-2 DMA initializ ation has failed. 1-2-3 DMA pag e registe r write/[...]

78 IB M ® xSerie s 22 0 User ’ s Refe re n ce 1-2-4 RAM r efr e sh verifica tion has failed. Reseat the memory modules or insta ll a memory module. If the problem persists, call for service. 1-3-1 First 64 Kb RAM test has failed. 1-3-2 Fir st 64 Kb RAM pari ty test has faile d. 3-3-1 A memory size mi smatch has occurred. 3-3-3 No memory has been[...]

Chapter 6. Solvin g problem s 79 POST err or message s The following tables provide info rmation about the POST error messages that c an appear during startup. POST message Description 062 The server failed to b oot on t hree consecutive a ttempts. All caches a re di sa bled. Repeatedly turning the s erver on and then off or r esetting t h e server[...]

80 IB M ® xSerie s 22 0 User ’ s Refe re n ce 162 A change in device configuratio n occurred. This error oc curs un der one or m ore of the following conditi ons: • A new de v ice has been installed. • A device has been moved to a differ ent location or cable connection. • A device h as been rem oved or disconn ected fr om a c abl e. • A[...]

Chapter 6. Solvin g problem s 81 186 A syst em board or h ardware error occu rred. Action: Cal l for se rv ice. 187 The VPD ser ial number is not set. Action: The system se rial n umber is se t i n the VPD E EPROM a t the time of manu facturing . If the sys tem b oar d has been r e plac ed, th e system serial numbe r will be invalid and should b e [...]

82 IB M ® xSerie s 22 0 User ’ s Refe re n ce 602 Invalid diskett e boot re cor d. Action: 1. Repl ace the d iskette. 2. If the pr oblem persists, make sure t h at the diskette dri ve cables ar e correctly and se curely connected. 3. If the pr oblem remains, r eplace the diskette dri ve. If the pr oblem persists, call for service. 604 An err or [...]

Chapter 6. Solvin g problem s 83 1962 N o valid startup devic es wer e found. The system c annot find the startup drive or opera t ing system. Action: Be sure that the driv e you wan t to start fr om is in the st artup sequence. 1. Sele ct Start Options fr om the Configu ration/Setu p Utility pr ogram main menu. If you are unable to s e t the start[...]

84 IB M ® xSerie s 22 0 User ’ s Refe re n ce 000120 00 Pro c e ssor mach i ne check. Action: 1. Upda te the sy st em BI OS . 2. If the problem per s ists, replace the micr oprocessor . 0001 95 01 Pro cessor 1 is not fu nct ioning . Action: Replace microprocessor 1. If the pr oblem persists, call for service. 0001 95 02 Pro cessor 2 is not fu nc[...]

Chapter 6. Solvin g problem s 85 001805 00 A PCI adapter ROM error occ urred. Action: Remove th e PCI adapte rs. If you ca n start the s erver wi th out the ad apt ers, reins tall each adap ter one a t a time and r e test aft er e ach is r einstall ed. W hen an a dapt er f ails, rep la c e i t. If you cannot isolate and cor r e ct the prob lem , ca[...]

86 IB M ® xSerie s 22 0 User ’ s Refe re n ce POST e rro r lo g The POST erro r log contains the three most r ecent error codes and m essages that the system generated during POST . T o view the contents o f this error log, start th e Configuration/Setup U tility program; then, select Erro r L ogs from the main menu. Small computer sys tem inter[...]

Chapter 6. Solvin g problem s 87 Diagnostic programs and error messages The server diagnostic pr ograms are stor ed in upgradeable read-only memory (R O M) on the system boar d. These pr o grams are the primary method of testing the m ajor components of your server . Diagnostic error m essages indicate that a problem exists; they ar e not intended [...]

88 IB M ® xSerie s 22 0 User ’ s Refe re n ce iii is the three-di git device ID. (These codes are for trained servi ce personnel and are d e s cribed in the Hardware Maintenance M anual .) date is the date that the diagno stic test was run and the error was r ecorded. cc is the check digit tha t is used to verify the validity of the in formation[...]

Chapter 6. Solvin g problem s 89 5. When the Diagnostic Programs scr een appears, select the test you want to run fro m the list that appears; then, follow the instructions on the scr een. Notes: a. If the serve r sto ps during testin g and you canno t continue, restart the se rve r and try running th e diagnostic programs again . If th e problem p[...]

90 IB M ® xSerie s 22 0 User ’ s Refe re n ce Diagnostic error message tables The following tables provide descriptions of the error messages that might appear when you run the diagnostic pro grams. Attentio n: If diagnostic error messag es appea r that are not listed in the foll owing tables, make sure th at your server has the latest levels of[...]

Chapter 6. Solvin g problem s 91 035 ServeRAID Aborted T est setup error: No ServeRAID adapter found on system bo ard or PCI bus Ma ke sure that th e Serve R AID adapte r i s proper ly inst alled. If t he problem r emains, repla ce the ServeRAID adapte r . If th e p roblem persi sts, ca ll for se rvice . Faile d A d apter in slot n ; adap te r/ dri[...]

92 IB M ® xSerie s 22 0 User ’ s Refe re n ce 089 Mic ropr ocessor Failed Inva lid micr oprocessor i n slot xyz or BIOS setup problem (wher e xyz iden ti fies the micr o proces sor th at is causing the error m essa ge) 1. Check the system err or log for the rela ted error messages. 2. If your server does not ha ve th e latest lev el BIO S instal[...]

Chapter 6. Solvin g problem s 93 Micropr ocessor Failed VRM corr esponding to Micr oprocessor in socke t xy z is defectiv e (wher e xyz identifies the micropr o cessor w ho se VRM is causing the erro r message) Replace the VRM. If t he pr oble m re main s, call fo r servic e. VRM corr esponding to Micr oprocessor in socket id xyz is not inst a lled[...]

94 IB M ® xSerie s 22 0 User ’ s Refe re n ce 202 Sy stem ca c he Aborted T est setu p err or: BIOS cannot acc ess V P D informa ti o n If your serv er does not have the lat est le vel BIOS i nstalled, update the BI OS to the la test leve l and run th e dia gn osti c progra m again . If the pr oblem persists, call fo r servic e. T est setu p err[...]

Chapter 6. Solvin g problem s 95 264 M agnetic ta pe dri ve Aborted T est setu p error: No tape d rive fo und Check the c able an d power connection s to the drive. Refer to the in form a ti on that is pro v ided wit h the tape drive . If the pr oblem persists, call fo r servic e. Failed The load/ mount t est failed for dev ic e n on adap ter m (wh[...]

96 IB M ® xSerie s 22 0 User ’ s Refe re n ce 405 E thern et Faile d In PCI slot n (wher e n is the PCI slot nu mber in which the failin g Ethe rnet ada pter is insta lled) Replace the Ethernet adapt e r in slot n. If the prob lem persists, call for serv ice. On syst em board Call f or servic e. 415 An alog/digit al modem Not applicable No modem[...]

Chapter 6. Solvin g problem s 97 Recovering the BIOS code If the BIOS code h as become damaged, such as fr om a power failur e during a flas h update, you can r ecover the BIOS code using the flash ROM page-swap jumper (J38) and a BIOS flas h diskette. Note: Y ou can obtain a BIOS flas h diskette from one of the foll owing s ources: • Use the Ser[...]

98 IB M ® xSerie s 22 0 User ’ s Refe re n ce 12. T urn off the serv er . 13. Move jumper J38 to the "hi" setting (pins 1 and 2) to return to normal startup mode. 14. Restart the server . Identifying pro blems using status LEDs Y our server has LEDs to help you identify pr oblems with some server components. These LEDs are part of the [...]

Chapter 6. Solvin g problem s 99 Diagnostic LEDs Y ou can use the diagnostic LEDs built into your server to quickly identify the type of system error that occurred. Y our server is design ed so that LEDs remain illumina ted when the server shuts down, as long as the power supplies are oper atin g properly . This feature h elps you to isolate the pr[...]

100 IBM ® xSeries 220 User ’ s Refer ence On VRM 1 or VRM 2 (system board) One of the micr oprocessor VRMs ha s failed, or a micropr ocessor VRM is installed in the wro ng connector . 1. Check the micropro cessor VRM error LEDs on the system boar d. If a micropr ocessor VRM error LED is on for a micropr ocessor VRM connector that ha s a terminat[...]

Chapter 6. Solvi ng pro b le m s 101 T roub leshoo ting charts Y ou can use the troubleshooting charts in this section to find solutions to problems that have definite symp toms. Attentio n: If diagnostic error messag es appea r that are not listed in the foll owing tables, make sure th at your server has the latest levels of BIOS, ServeRA I D, and[...]

102 IBM ® xSeries 220 User ’ s Refer ence Intermittent problems Ve r i f y t h a t : 1. All cables and cor ds are con nected securel y to the rea r of the server and attached options. 2. When the server is turne d on, air is flowing from the r ear of the serv er at the fan grill. I f ther e is no airflow , the fan is not working. Thi s causes th[...]

Chapter 6. Solvi ng pro b le m s 103 Monitor problems Ve r i f y t h a t : 1. The ser ver power cor d is plugged into the server and a work ing electrical outlet. 2. The monito r cables ar e connected pr operly . 3. The m onitor is t urned on and th e Brightness and Contrast c ontrols ar e adjusted correctly . If the items abov e are corr ect and t[...]

104 IBM ® xSeries 220 User ’ s Refer ence Option proble ms Ve r i f y t h a t : 1. The option is d esig ned fo r the server . Refer to the "Server S upport " flo wchart for informat ion abo ut obtai ning Serve rPr oven ™ compatibility inf ormation fr om the Wo r l d W i d e We b . 2. Y ou followed the in stallation ins t ructions t h[...]

Chapter 6. Solvi ng pro b le m s 105 Printer problems Ve r i f y t h a t : 1. The printer is turned on and is online. 2. The prin ter signal ca b le is connected to t he corr ect serial or parallel port on the server . Note: Non-IBM printer cables might cause unpredictable problems. 3. Y ou have a ssigned the pri nter port corr ect ly in your opera[...]

106 IBM ® xSeries 220 User ’ s Refer ence T roubleshoo ting the Ethernet controller This section provides troublesh ooting inform ation for problems that mi ght occur with the 10/100 Mbps Ethernet controller. Network connection problems If the Ethe r net cont roller cannot conn ect to the netw ork, check the follo wi ng: • Make sur e that the [...]

Chapter 6. Solvi ng pro b le m s 107 Ethernet controlle r problem Suggested A ction The server stops r unning when loa ding device drivers . The PCI BIOS in terrupt sett ings are in co rrect. Check the following: • Deter mine if the interrupt (IRQ) settin g assi gned to the Etherne t con troller is also assigned t o another de vice in the Configu[...]

108 IBM ® xSeries 220 User ’ s Refer ence Ethernet control ler messa g es The integrated Ethernet co ntroller might display messa ges f rom the follo win g device drivers: • Novell ™ NetW ar e ™ or IntraNetW are Server ODI • NDI S A dapt e r for lev e l 4.0 ( Windows NT ) Novell Net W ar e or IntraN etW a re serve r ODI drive r team ing [...]

Chapter 6. Solvi ng pro b le m s 109 NDIS 4.0 (Windows NT) driver messages This section contains the err or messages for the NDIS 4.0 dr ivers. The explanation and recommended a cti on ar e included with each message. Requested number of S econdary car ds ar e not fo und. Explan ation: The number o f adapters specified in t he bind com mand could n[...]

110 IBM ® xSeries 220 User ’ s Refer ence 0x02 Explanation: Bad n ode address (mu lticast addr ess). Action: Make s u r e that the lo cally admini stered ad dress is valid, if one is specified. Th e addr ess can not be a m ulticast addr ess. 0x03 Explanation: Fa iled self-test. Action: Make s ure a cabl e is attached to the Ethernet connector . [...]

Chapter 6. Solvi ng pro b le m s 111 Ethernet tea ming messages: Event ID T ype Description 01 Error Explanatio n: T eam Nam e a nd physic al adapt er name are th e same. This is an invalid configuration. Action: Reconfig ure the adapt er team by double-c licking the PROSet icon in th e control p a nel. 02 Err or Explanation: Un able to alloc ate r[...]

112 IBM ® xSeries 220 User ’ s Refer ence 17 Informa tional Explanation: Te a m nn . Preferred primary adapter ha s been detected. Action: None . 18 Informa tional Explanation: Te a m nn . Preferred secondary adapter ha s been detected. Action: None . 19 Informa tional Explanation: Te a m nn . Preferred primary adapter took over . Action: None .[...]

Chapter 6. Solvi ng pro b le m s 113 Replacing the battery When replacing the battery , you must replace it with a lithium battery o f the sa me type, fro m the same manufactur er . T o avoid possible danger , read and fo l low the safety state ment below . T o or der replacement batteries, call 1 -800-772-222 7 wi thin the United States, and 1- 80[...]

114 IBM ® xSeries 220 User ’ s Refer ence 3. Remove the battery: a. Use one finger to lift the batter y clip over the battery . b. Use one finger to slightly slide the battery out from its socket. The spring mechanism wil l push the battery out tow ard y ou as you slide it from the socket. c. Use your thumb and index f ing er to pull the battery[...]

Chapter 6. Solvi ng pro b le m s 115 Getting he lp, service, and information If you need help, service, technical assistance, or just wa nt more information about IBM produc ts, you will fin d a wide va r iety of sources av ail able f rom IBM to a s s ist you. This section contains i nf orm ation about wh ere to go for addit ional inform a tion abo[...]

116 IBM ® xSeries 220 User ’ s Refer ence The troubleshooting in f ormation or the dia gn ostic programs might tell yo u that you need additional o r updated devi ce driv ers or other software. IBM ma intain s pages o n the W orld W ide W eb where you can get the latest technical information and download device dri vers and updates. T o access t[...]

Chapter 6. Solvi ng pro b le m s 117 If possible, be at your computer w hen you call. Please have the following information rea d y: • Machine T ype and Model • Serial numbers of your IBM h a r dw ar e pro ducts • Description of the problem • Exac t wo rd ing of an y error m ess a ges • Hardware and software configuration inform ation Pho[...]

118 IBM ® xSeries 220 User ’ s Refer ence Other servic es IBM Update Connector is a remote communication tool that you can use w ith s ome IBM computers to communicate with the HelpCenter . Update Connector enables you to receive and download updates for some of the softwa r e that might come with your computer . W ith some computer models, you [...]

© Copyright IBM Corp. 2000 119 Appendix A. Prod uct warranties and notices This chapter contains warranty and emission notices. It also contains trademarks and general-informa tion notices. W arranty Statements The warranty statemen ts consist of two parts: Part 1 and Part 2. Part 1 varies by country . Pa rt 2 is the same f or all countries. Be su[...]

120 IBM ® xSeries 220 User ’ s Refer ence The IB M W arra n ty for Mach ines IBM warrants that each Machine 1) is fr ee from defects in materials and workmanshi p and 2) confor ms to IB M ’ s O fficial Publish ed Specifications. The warrant y period f or a Machine is a specified, fixed period commencing on its Date of In stallation. The date o[...]

Appen d ix A. Produc t w arr anties and n ot ic e s 121 When warranty service involves the exchange of a Machine or part, the item IBM or your reseller r eplaces becomes its pr o perty and the replacement becomes yours. Y ou repr esent that all removed items are genuine and unaltered. The re placement may not be new , but will be in good wo rking o[...]

122 IBM ® xSeries 220 User ’ s Refer ence This limit also applies to IBM ’ s su pplier s and you r rese ller . It is the max imum f or which IBM, its s uppliers, and your reseller ar e col lectively responsible. UNDER NO CIRCUMST ANCES IS IBM LIABLE FOR ANY OF THE FOL LOWING: 1 ) THIRD- P AR TY CLA IMS A GAINST Y OU FO R DAM AGES (OTHER THAN T[...]

Appen d ix A. Produc t w arr anties and n ot ic e s 123 Extent o f W arranty The warranty does not cover th e repair or exchange of a Machine resulting from misuse, accident, modification, unsuitable physical or operating envir o nment, improper maintenance by you , or failu re caused by a product for which IBM is not res ponsible. The warranty is [...]

124 IBM ® xSeries 220 User ’ s Refer ence Y ou also agree to 1. ensure that the Machine is free of any lega l obligati ons or restrictions that prevent its exchan ge; 2. obtain au thorization f rom the ow ner to h ave IBM or your reseller service a Machi n e tha t yo u do not ow n; and 3. where a pp licable, befor e service is provided a. follow[...]

Appen d ix A. Produc t w arr anties and n ot ic e s 125 Part 2 - Worldwide Country-Uniqu e T erms ASIA P ACIFIC AUSTR ALI A: The IB M W arrant y for Machines : The follo wing paragraph is add e d to this Sectio n: The warranties specified in this Section are in addition to any rights you may h ave under the T rade Practices A ct 1974 or other legis[...]

126 IBM ® xSeries 220 User ’ s Refer ence W arranty Service If you purchased an IBM M a chine in Austria, Be lgi um, Denmark, Esto ni a, Finland, France, Germany , Gr eece, Iceland, Ir eland, Italy , Latvia, Lithuania, Luxembour g, Netherlands, Norway , Portugal, Spain, Sweden, Switzerland or United Kingdom, you may obtai n warranty service for [...]

Appen d ix A. Produc t w arr anties and n ot ic e s 127 to damages caused by IBM with fra ud or gross ne g ligence and for expr ess warranty . In item 2, r eplace "U.S . $100,000 " with "1.000.000 DEM." The following sentence is a dded to the end of the first paragrap h of item 2: IBM ’ s l iability un der this item i s limite[...]

128 IBM ® xSeries 220 User ’ s Refer ence otherwise gives rise to the claim. The following item is added to th is paragraph : 3. br each of IBM ’ s obligat ions implied by Se ction 12 of th e Sa le of Goods Act 1 979 or Section 2 of the Supply of Goods and Services Act 1982. Applicability of sup pliers and resellers (unchanged). The following [...]

Appen d ix A. Produc t w arr anties and n ot ic e s 129 incorporated in n e w ed itions of the publicati on. IBM may make improvements and/or cha nges in the product(s) a nd/or the program(s) de scribed in this publication at any time with out notice. Any refer ences in this publication to no n-IBM W eb sites are pr ovided for convenience only and [...]

130 IBM ® xSeries 220 User ’ s Refer ence Other compan y , product, and service names ma y be tra demarks or service ma rk s of others. Important notes Processor speeds i ndicate the internal cl ock speed of the m icroprocessor; other factors also affect applica tion performance. When referr ing to hard disk drive capacity , MB stands for 1 000 [...]

Appen d ix A. Produc t w arr anties and n ot ic e s 131 Industry Canada Class A emission compliance stateme nt This Class A d igit al apparatus com plies with Canadia n ICES-003. A vis de conformit é à la r é glementation d'I ndustrie Canada Cet appare i l num é rique de classe A est conforme à la norme NMB- 003 du Canada. Australia and N[...]

132 IBM ® xSeries 220 User ’ s Refer ence T aiwan electrical emission statement Japanese V oluntary Control Council for Interference (VCCI) statement Power co rds For your safety , IBM provides a po wer cord with a gr ounded attachment plug to use with this I BM product. T o avo id electrical shock, always use the po wer cord and plug with a pro[...]

Appen d ix A. Produc t w arr anties and n ot ic e s 133 IBM power cord pa rt number Used in these coun tries and regions 13F994 0 Argentina , Australia, Ch ina (PRC), New Zea land, P apua New G uinea, Paragua y , Uruguay , W e stern Samoa 13F997 9 Afghanista n, Alger ia, Ando rra, Angola, A ustria, B elgium, Benin, Bulgaria, Burk ina Faso, Bu rundi[...]

134 IBM ® xSeries 220 User ’ s Refer ence[...]

© Copyright IBM Corp. 2000 135 Index Numerics 933 MHz mi cr oproc ess or install ing 57 remov ing 58 A acoustica l noise em issions 2 activ ity l ights CD-ROM drive 5 diskett e drive 5 hard di sk drive 5 , 49 SCSI 5 , 49 adapt er consider ations 40 Etherne t 41 , 72 faul t tol erance 70 full len gth 40 install ing 41 optional system-management 41 [...]

136 IBM ® xSeries 220 User ’ s Refer ence error me ssages 108 failover 69 high p erf or mance mode s 69 IntraNetW are error mes sa ges 108 NetWare er ror messages 108 pin-number assignment s 72 port 62 , 69 priority filt ers 70 priority packet mode 70 team ing 70 teami ng error messag es 111 troubleshoot ing information 106 VLAN 71 Windows N T e[...]

Inde x 137 O option install ing 27 problem 104 optional system-management adapt er 41 override switch, password 16 P parallel port descript ion 62 pin-number assignment s 63 problem 104 parity checking , SCSI 18 password adminis trator 16 forgotten pow er-on 15 override switch 16 power-on 15 PCI adapt ers 40 bus A 40 bus B 40 bus contr ol 14 conf i[...]

138 IBM ® xSeries 220 User ’ s Refer ence T tape d rive install ing 44 , 46 team ing 69 teami ng error messag es 111 temperature air 2 termin at or c ard microprocessor 55 , 57 test lo g viewing diagnostic 89 thermal ma terial 56 , 57 time and date 13 trade marks 12 9 traffic cla ss expediting 70 trans fer rate SCSI de vices 18 troubleshooting c[...]