Promise Technology UltraTrak100 TX4 manual

U LTRA T RAK 100 TX4 AND U LTRA T RAK 100 TX8 U SER M A NUAL[...]

C OPYRIGHT © 2001, Pr omise T echno logy, Inc. Copyright by Promi se Tech nology, Inc. (Prom ise Techn ology ). No part of this manual may be r eproduc ed or trans mitted i n any form w ithout the ex pressed, wr itten permissio n of Pr omise T echnolo gy. T RADEM A RKS Promise, and the Pro mise log o are r egistere d in U .S. Patent and Tr ademar [...]

R ADI O F RE QUENCY I NTERFERENCE S TA TE MEN T This equ ipment has bee n tested an d found t o comp ly w ith the limit s for a Cla ss B digital d evice, pursua nt to Part 15 of the FC C Rule s. These limit s are designed t o provide reasonab le prote ction again st harmful interferen ce in a residentia l install ation. This equ ipment ge nerates, [...]

T A BLE OF C ONT ENT S Introduct ion .................................................................................................................. 1 Architect u ral Description......................................................................................... 1 Features a nd Benefits ......................................................[...]

Appendix A - Technology Bac k ground ....................................................................... 41 Introduct ion to RAID ............................................................................................. 41 RAID 0 – Stripin g ..................................................................................................[...]

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1 I NTRODUCTIO N Thank y ou for pur chasing Pro mise T echnolo gy’s Ultr aTrak100 T X4 or UltraTrak100 TX8 ex ternal disk array system. UltraTrak100 provides data storage sol utions for application s where fault to lerance and data r edundancy are re quired. The fa ilure of any single d rive will not a ffect data inte grity or a ccessib ility of [...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 2 F EATURES AND B ENEFIT S Feature Benefit Max im um fa ult to lerance Ensure s un inter rup ted da ta availa bility Supports RA I D levels 0, 1, 3, 5, 0+1, and JBOD Allows system to be tuned for m aximum performanc e Emulat es standard SCSI-3 drive to ho st Compati bl e with al l SCSI -3 or SCSI-[...]

3 G ETTING S TARTED Caution To prevent seri ous damage to the UltraTrak100 be sure that the voltage- select switch on the back of the pow er supply i s set to your local voltage (see Figure 2 on page 5). Getting started w ith the UltraTr ak100 consist of the follow ing steps: 1. Unpack U ltraTrak 100 stor age subsyste m (page 3). 2. Install Har d D[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 4 Before inst alling a new hard dr ive, be sure the jumpers on the new hard drives ar e set for s ingle or master operation. Con sult the driv e manual for the proper setting s. Install new hard drive s into t he UltraT rak100 by doing the follow ing: 1. Open the Fron t Panel Door on the UltraTrak[...]

5 C ONNECTING THE SCSI C ABL ES Installa tion of t he UltraTrak10 0 disk array is very simi lar to th e instal lation of a standard SCSI drive. The SCS I connector accept s the standa rd 68-pin LVD SC SI connect or used on most LVD SCSI device s . Refer to y our sy stem and/or SCSI host ada pter man ual for addit ional instal lation pr ocedures tha[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 6 (the one w hich is atta ched to t he SCSI ad apter) to t he top co nnector, a nd place an LVD SCSI activ e ter m inator on th e other connector . An LVD SCSI active t erminat or is in cluded w ith UltraTrak 100 dis k array unit. • If the array is to be plac ed in t he middl e of a d a isy-chai[...]

7 device has a u nique SCSI ID and tha t only the first and last dev ices are terminate d. (See SCSI C able Connectio n and T ermination on pag e 5). Computer or Workstation U ltraTrak100 TX4 Ultr aTrak100 TX4 A not her SCSI Device Terminator WID E S C SI SCSI ID COM2 Fi g ure 4. Dai sy Chai ning UltraT rak1 00 with Other SCS I Device s C ONNECT P [...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 8 C ONFIGU RE T HE U LTR A T RAK 100 The confi guration procedures f or both the UltraT rak100 TX 4 and Ultr aTrak100 TX8 are ex actly the sam e. The following pro c edures prov ide t he basic st eps needed to create a n array and get y our UltraTrak1 00 runnin g qui ckly. Before beginnin g, you n[...]

9 Note If you wish to make a RAID 0+1 array using 4, 6, or 8 drives you need to choose RAI D 1 (mirroring) and then follow the steps below to create the array. 9. Press SEL to assign Stripe Block Si ze . 64KB is th e optim um value for most applicat ions. Ch oosing the pro per Stripe Block Siz e facilitat es eff icient data flow. Y ou might want t [...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 10 For the Gigaby te Boundary fe ature to work, the Gigabyte Boundary feature mu st be set to ON w hen the ori ginal array is created. W he n enabled, the G igaby te Boundary f eature rou nds the d rive cap acity of all dr ives to th e comm on whole G B drive size. For exampl e, with t he Gigabyte[...]

11 Recommended Applications for R AID 1 • Accounti ng • Payroll • Financia l • Any appli cation r equiring very high av ailabil i ty RAID 3 A d vantages Disadvantages High Read data transf er rate Disk f ailure has an insi gnifi c ant impact on throughput Parit y drive can become bott l eneck if a lot of writes are occurring Recommended App[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 12 JBOD Characteristics/ A dvantages Disadvantages Uses 100% c apacit y of all hard drives The failure of jus t one drive will re s ult in all data in an array being lost Should not be used in mission crit ical environm ents Recommended Applications for JB OD • File archiv ing • General f iles[...]

13 M AI N T E N AN C E D RIVE S TA TUS I NDICATORS As show n in the figure b elow, each drive h as three status LE Ds. Figure 5. Location of Driv e St atus In dicator s (T X4 s hown) M E A NING OF S TA TU S I NDIC AT ORS Indica tor Co lor Meanin g Power Off No disk dri ve power – power off or no disk instal l ed. Green Disk power on. Stat us Gree[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 14 A non-fault tolerant array goes "offl ine" when a drive i s remo ved or fails. Since the array is not fault tolerant, the d ata stored in the array is no lo nger accessible. If the drive w as removed, then i t should be rep laced to re store acc essibility to t he array. If the driv e[...]

15 Reconstru ction begin s auto matica lly as soon a s a replace ment driv e bec omes availab le to the array. How ever, if the rep lacement drive was formerly part of another array , then the previous arr ay informat ion mu st be d eleted (fro m the replace ment drive – see page 29, “Delete Arr ay”, for more detail s) before reconstru ction [...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 16 9. Insert s crews throu gh the h oles in the Dr ive Carrier and into t he bottom of the new hard drive. Tight en ea ch screw ; be careful n ot to ov er tight en. 10. Slide the assem bled Dr ive Car rier back int o the UltraT rak100 and lock the Drive Carrier lock . Connect Power Cable to the Di[...]

17 Caution Risk of elect ric al shock . W hen eit her power supply m odul e is removed from the chassis , A C power is access i ble at the ci rcuitry i n the power supply c hassis. Only trained and qualified pers onnel should remove the power suppli es. SCS I-I N SCS I-OUT /T ER M COM- 1 O I 115 O I 115 O I SCS I Connect or I nput SCS I Connect or [...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 18 U LTRA T RA K 100 F RONT P AN EL I NTERF ACE The front p anel interface f or the UltraTrak1 00 con s ist of follo wing item s: ARRAY SCSI BUS UltraTrak10 0 TX4 EXIT SEL Type of Interface Name Comments LED Indic at ors Array Acti vi t y Indicator SCSI Bu s Activ ity Indica tor Liquid Crys t al D[...]

19 T HE LCD M ESSAGES The U ltraTrak100 LCD messa ge display pan el has the f ollowing mode s of operation: • Idle mode • Error mode • Configur ati on mode Idle M ode Provi des an error message Error Mode View Stat us Configure A rray Configure Cache Configure S CSI Configuratio n M ode I DLE M ODE The Idle mode message, such as shown below ,[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 20 The first line of the I dle mod e menu w ill displ ay one of the fo llowing sta tus messag es: • Array Funct ional The array is fully operat ional, and no pro blems are present. • Array Critica l The array is opera tional, but has l ost its fau lt tolerance . For RAID array levels 1, 3 and,[...]

21 View Status Cache Mem ory Size Cache Bl ock S ize Cache Read Hit Cache W rite Hit View Cache Stats Arra y x Siz e RAID x S tat us View A rray Inform ati on Temperat ure Fan 1 Stat us Fan 2 Stat us Fan 3 Stat us Fan 4 Stat us View E nclosure Mem ory S i ze Hardware Re v Firmwar e Rev View Controller In fo V IEW S TA T US M EN U The View Status me[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 22 V IEW C ON TRO L LER I NFOR MAT ION The View Controller Infor matio n mode d isplays Ultr aTrak10 0 firmware rev ision, memory size, and hardw are revision: Memor y Size: 1 6 MB Ha rdware Rev : PDC20 265 Where t he valu es sho wn a re si mply e x amples. Firm w are Rev: V1.00 B 00 Pre ss or to [...]

23 V IEW A RRAY I NFORM ATION The View Array Information mode d isplays t he array ID, arra y siz e, RAID lev el and array stat us (Fun ctional, Criti cal, Offline, R ebuilding a nd Syn chronizing). If these modes of display requ ire more than 2 line s to dis play i nforma tion the up an d down keys w ill be us ed to s c roll the disp lay. Th e Arr[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 24 Provi des a l i s t of i ns t al led di sk dr i ves . Conf i gur e A r r ay Creat e/Cancel Au to Arra y S etu p Provi des a l i s t of i ns t al led di sk dr i ves . V i ew Dri ve Assi gn m ents RA ID Lev el St r i pe Bl oc k Si z e G B Boundary Add/Rem ove Dri ves Save Changes D efine Array Pr[...]

25 C ONFIGURE A RR A Y The Configur e Array menu w ill allow the creation and de letion of array s . The configure array menu con tains the follow ing sub me nus: Aut o Ar ray Set up View Dri ve As sig nm e nts Defin e Array Del et e Arra y Adva nce d Featur e Pres s or t o move thes e items on the LCD. What y ou can do: Pres s SEL : S e l ect s on[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 26 You w ill see the follow ing message if a ll of the driv es are alr eady conf igured: No Free Dis k What y ou can do: Pres s SEL : Pressing SEL w ill save the arr ay. Pres s : Does nothi ng. Pres s : Does nothi ng. Pres s EXIT : Press EXIT to c ancel t his funct ion and return to t he Conf igur[...]

27 D EFINE A RRAY The Define Arr ay menu define s array parameter s for the sele cted array. An array number i s sele cted by using the up/d ow n key to select t he arr ay number fi eld. T he SEL key is the n used to sele ct array nu mber 1-4. The param eter to be config ured, RAID Level or Stripe Block size, is then selecte d with up/dow n keys. O[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 28 S TRIPE B LOCK S IZE The Stripe Bl ock Siz e men u all ows y ou to sele ct a Stripe Bloc k Size betw een 4KB and 64KB: 4KB 8KB 16KB … 64KB Pres s or t o move thes e items on the LCD. What y ou can do: Pres s SEL : S e l ect s one of the active St ripe Block Si ze: Pres s : Moves the act i ve [...]

29 A DD /R EMOVE D RIVES The Add/Rem ove Drives menu as signs and r emove s driv es from arrays. Al l free drives ar e displayed a s one dri ve per li ne forma t. The SEL key toggles th e drive between free and assig ned. A ssigned drive s are design ated by disp laying Assigned and free drives are designated by disp layin g Free . 1 MAX T OR Fr ee[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 30 A DVANCED F EATURE Wipe out di s k Sync hro niz e Ar ray Dis abl e Buzzer Rebu ild/Sync Pri. Pres s or t o move thes e items on the LCD. What y ou can do: Pres s SEL : S e l ect s one of the following acti ve func tions: Wipe out di s k Moves the display t o the Wipe out disk m enu. Sync hro ni[...]

31 S YNCHRONIZE A RRAY The Sy nchronize Arr a y menu allow s the user to synchroniz e the data on e ach drive. Synchr onization is a ma intena nce pro c edure for fau lt tolerant arrays (RAID 1, 0+1, 3 a nd 5) to mai ntain da ta cons istency on al l drives. To sy nchroniz e the array, go t o the Configur ation menu an d sele ct Configure Arra y ; t[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 32 Configure Cache Wr i te B a ck Wr i te T h r u W rite Cache C ONFIGURE C AC H E The Configur e Cache men u will allow the setting o f cach e parameters. T he following parameter is se t in the Confi gure Cache m enu: Writ e Cach e What y ou can do: Pres s SEL : S e l ect s one of the following [...]

33 Configure SCSI ID LUN Mode List SC SI ID s 0 thr u 15 to be select ed from . SCSI ID C ONFIGURE SCSI The Configur e SCSI menu will allow the sett ing of SCSI para meters. T he following parameter s are se t in the conf igure SCSI menu: Mode SCSI I D What y ou can do: Pres s SEL : S e l ect s one of the following acti ve func tions: Mode Move the[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 34 W he n usi ng ID mod e, if you hav e multiple arr ays w ithin an U ltraTrak100 un it, each array w ill use a separate SC SI ID. W hen using LUN mode, each U ltraT rak100 un it will use a single SCSI ID, w ith the first array bei ng LUN 0, the second array be ing LUN1, et c. Enable M ultiple LUN[...]

35 C ONTA CT ING P ROMISE S UPPO RT Promise T echnic al Suppor t provides sev eral suppor t option s for Promise u sers to access in formation and up dates. We encoura ge you to use o ne of our electron ic service s, which provide produ c t information u pdates for th e most efficient serv ice and support. If you de cide to contac t us, please have[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 36 Pacifi c Rim Sales Offi ce E-mail Support support@ promise.com.t w Fax Technical Support +886 3 578 23 90 Att ention: Technical Support Phone Technical Support +886 3 578 23 95 9:00-5:30pm Taiwan Time If you wish to write us for support: Promise Technology, Inc. Att n: Technical Support 2F, No.[...]

37 L IMIT ED W AR R AN T Y Promise T echnol ogy, In c. (Promis e Techn ology ) warrants th at for two (2) year s from the t ime of the deliv ery of the pr oduct to the orig inal end user: a. the produ ct will c onform to Pro m ise T echnolo gy’s specifi catio ns; b. the produ ct will be free from defect s in material and workma nship un der norma[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 38 reprogram ming, or r eproducing of pr ograms or data stored in or used w ith the products, or for any other g eneral, spe cial, conseq uential, indirect, inci dental, or punitiv e damag es, w hether in contract, tort, or otherw ise, notw i thstanding the failure of the essential purpose of the [...]

39 R ETURNING P RODUCT F OR R EPA I R (US A & C AN AD A ) If you su spect a produc t is no t w orking properly, or if you have any quest ions about yo ur produc t, conta ct our Techni cal Suppor t Department thro ugh one of o ur technic al serv ices. Y ou may reach our Technical Su pport Departm ent as follow s: • Call us at (408) 452-118 0 ?[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 40 Y OUR R ESPONSIBILITIES You are res ponsible for deter mining whether the product is appropr iate for your use and w ill interfac e with y our equipme nt without malfuncti on or da mage. You are also r esponsible for backin g up your data bef ore install ing any product and for regularly backi [...]

41 A PPEND IX A - T ECH NO LOGY B A C KGRO UND I NTRODUCTION TO RA ID RAID (Redund ant Array of Independ ent Disks) a llows m ultipl e hard drives to b e combined to gether to form one large logical dr ive or “array.” As far as the operating system is concerne d, the a rray repre sents a singl e stora ge device, and treats it as suc h. The RA I[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 42 RA ID 1 – M IRRORING W he n a di sk array is mirrored , identica l data i s written to a pair of dr ives, while reads are performed in para llel. The read s are performe d usi ng elev ator see k and load bal ancing techni ques w here the workload is distribute d in the mo st effi cient manner[...]

43 RA ID 0+1 – S TRIPING /M IRROR Striping/m irroring combin es bo th of the pr evious array ty pes. It can increase performan ce by re ading a nd writing dat a in paralle l while pr otecting d ata with duplicat ion. At l east four drive s are needed for R AID 0+1 to b e instal led. W ith a four-drive disk arr ay, drive p airs are stri ped toge t[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 44 RA ID 3 – B LOCK S TRIPING WITH P AR I T Y D RIVE RAID lev el 3 organ izes data a c ross the physic al drives of the array , and s tores parity in formatio n on to a drive dedicat ed to thi s purpo se. This org anization allow s increase d performan ce by a ccessing multiple dr ives simult an[...]

45 RA ID 5 – B LOCK AND P ARIT Y S TRIP ING RAID 5 is similar to R AID 3 a s describe d above ex cept that the pari ty data is rotated acr oss the phys ical dr ives along w ith the bloc k data. Having the parity data striped acro ss all the phy si cal driv es in this man ner remov e s the rando m wr ite performan ce bottl eneck of RAID 3. T he to[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 46 JBOD (S PANNING ) In a Spann ing array , the disk a rray capacity i s equal to t he su m of all drives, even if the driv es are of differ ent capacitie s. Spanning stores d ata onto a drive until it is complet ely fil led the n procee ds to store dat a on to the n ex t drive in t he array . The[...]

47 Appendix B - Freq uentl y Asked Questions This se ction list s freque ntly a sked questions inv olving pre- instal lation, drive issues, in stallation, and post-in stallation. Q. What kin d of hard drives c an I use for an Ultr aTrak100 arr a y ? A. You can u se any Ultra ATA/10 0, Ultra ATA/33/66, or EIDE hard driv e(s) to create array s on t h[...]

UltraTrak100 TX4 and UltraT rak100 TX8 User M anual 48 Q. Why can’t I see the driv es on the Ultr aTrak10 0 under FDISK ? A. If you hav e not created a n array, the phys ical dr ive(s) attache d to the UltraTrak100 card will no t be recog nized by the o perating sy stem. T he UltraTrak100 controller is ded icate d to RAID array managem ent and do[...]