HP (Hewlett-Packard) LTO 4 SAS manuale d’uso

HP restricted HP L T O Ultr ium ta pe dr i v es t e c h n i c a l re f e re n c e m a n u a l L T O 4 FC, S C S I and S A S dr i v es v olume 2 : so ft w ar e integr ation Edition 1, June 2 00 7[...]

HP restricted Legal and no tice infor mation © Copy ri ght 19 99–200 7 Hew lett-P ack ar d Dev elopment C ompany , L .P . Hew lett-P ack ard Compan y mak es no w arr anty of any kind w ith r egard t o this mater ial, inc luding , but not limited to , the implied war ranti es of mer chantability and fi tness f or a partic ular pur pose . He wlett[...]

HP LTO Ultrium 4 drives technical referenc e m anual, volume 2: software integration 3 HP restricted Related documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Documents specific to HP Ultrium drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

4 HP restricted WORM media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 How WORM media w orks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Changes to SCSI commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

HP LTO Ultrium 4 drives technical referenc e m anual, volume 2: software integration 5 HP restricted Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Resetting drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

6 HP restricted[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 7 HP restricted R elated doc uments This is one of si x v olumes that doc ument HP U ltrium dr i ve s. T his v olume pr o vi des back ground infor mation f or dr i v er and applicati on dev eloper s. T he follo wing pr oducts ar e co ve re d: • HP L T O Ultrium 4[...]

8 HP restricted Installati on and conf igur ati on Oper ation Car tridg es Inte rface FC D rives SCS I Drive s SAS Drive s Connect ors 1 HW Integr ation: ch. 4 1 HW Integr ation: ch. 7 Dete rmini ng t he c onfiguratio n 2 SW I n t e g ra t i o n : ch. 2 External dr ive s n/a 1 HW Integr ation: ch. 5 In librar ies 1 HW Integr ati on: ch. 1 In server[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 9 HP restricted Maintenance and tr oubleshooting Dealing w ith er r or s Implementation 3 Hos t Interf ace: ch. 1 Inter pr eting sens e data 2 SW I n t e g ra t i o n : ch. 3 Messages 3 Ho st Inte rface: ch. 2 Mode pages —see the MODE SEN SE command 3 Host Interf[...]

10 HP restricted L T O Ultr ium featur es Gener al doc uments and standar diz ati on See http://www .t10.or g/t10_main .htm f or INCI T S S CS I Pr imary Commands—3 (SP C-3), S CS I Str eaming Co mmands (S S C-3) and other specifi cations Copi es of doc uments of other s tandar ds bodie s can be obtained fr om: FC Drives SCSI D rives S AS Drives [...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 11 HP restricted 1 Designing bac k up a ppli catio ns In toda y’s computer mar k et , so ftwar e applicati ons that us e tape dr i ve s to cop y the infor mation f r om a computer’s har d disk fo r safe k eeping ar e r eadily a v ailable fo r man y differ ent o[...]

Designing backup applications 12 HP restricted NO TE: Using immediate mode w i th other commands does not impr o v e perfor mance and can cause pr oblems when w r iting a dri v er . T he SC SI s pecif i cation r equir es that if a command is issued w ith the IMMEDIA TE bit set to 0, the dri ve must f lush its data buffer be for e it carr ies out th[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 13 HP restricted See “ T ape Capac ity L og P age ” under the LO G S E N S E c ommand in Chapter 3 of The SC SI Interface, V olume 3 of the HP L T O Ultr ium T echni cal Re fer ence Manual for mor e inf ormati on . While the r eli ability of t ape pr oducts and[...]

Designing backup applications 14 HP restricted • Use log f iles to stor e Inquiry and Sense K e y/Er r or Code inf ormati on about er r or conditi ons. • Allo w user s to access dr i ve f irm ware r ev ision and HB A char act eri stic inf ormati on • Include the capability to do wnload f irm war e. • Incorpor ate simple di agnosti c capabil[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 15 HP restricted 2 C onf i gur ation and initiali z ati on This s ection co v ers the follo w ing topi cs: • Operating S yst em dri v ers • Inquiry str ing r eco ve ry , finding inf ormati on about the dr ive t hr ough the INQUIR Y co mmand • Additi onal L UN[...]

Configuration and initialization 16 HP restricted Product ID , first 8 b ytes Product ID, last 8 b ytes Produ ct Rev ision Le vel Example If new dr i v e families or v ar iants support featur es that ar e not available in pr e v io us gener ation pr oducts, y ou can detect the e xistence o f these featur es through the S C SI MODE S ENSE and LO G S[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 17 HP restricted Since L T O 4 dri v es cannot wr ite to Ultr ium- 2 medi a, the WRT OK bit w ill be clear f or this media ty pe . Support f or additio nal L UN Enabling additional L UN support When enabled by an int ernall y-connected a utoc hanger de vi ce , an e[...]

Configuration and initialization 18 HP restricted[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 19 HP restricted 3U s e o f t a p e s HP U ltrium u ser doc umentation and “C artridges ” , Chapt er 9 of the H ardw are Integ ration Gu ide , V olume 1 of the HP L T O Ultr ium T echnical R ef er ence Manu al, als o contain inf ormati on on cartridge s. Timing[...]

Use of tapes 20 HP restricted T a pe statu s and capac ity F ollo wing autoload or a LOA D command, the softwar e can determine the state of the tape and its capac ity fr om the Cartr idge Memory and the T ape Capac it y L og pages retr iev ed thr ough the LO G SENSE command . The inf ormati on can also be inv ok e d as a console oper ati on at any[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 21 HP restricted Capac ity calc ulations ar e based on es timates; r eported values can be sub ject to er r or in two w a y s: • Random er r ors caused b y toler ances in tape length, hub di ameter , and so on. • S y stematic err ors caused by ignor ing s ys te[...]

Use of tapes 22 HP restricted The f ollo w ing table gi v es the minimum acceptable C apac ity Pr oportion V alues and the appro ximate capac ity they w ill gi v e: NO TE: Capac itie s ar e appr o x imate and can be affec ted by de fec ts that re duce the actual capac ity of the tape . Other fac tors , such as compr ession and block pac king, ma y [...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 23 HP restricted T apeAlert flags: • 3Bh (W ORM medium—integr ity c heck f ailed) • 3Ch (WORM medi um—ov erwrite attempted) Err or Usage page F or W O RM cartridge s, the W r ap Number f ields in the Err or Us age page are r eplaced by an Err or Code f i el[...]

Use of tapes 24 HP restricted applicati on to locate the tape in pr epar ation f or subsequent w riting or r eading oper ations . At the start of an appending ar chi ve or back up sessi on , it is common for the appli cation to locate the tape to a logical positi on immediatel y pr eceding the second f ilemark and to ov erwr ite the second file mar[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 25 HP restricted Bar code support Ultr ium bar code support is requir ed f or W ORM media so that the appli cation and tape libr ary can distinguish W ORM media fr om norm al RW medi a or c leaning cartridges . HP r ecommends the us e of the foll o w ing bar code f[...]

Use of tapes 26 HP restricted RW W re t r y c o u n t s Data is read immedi ately after be ing wr itten to ta pe to establish that it has been w ritte n corr ectl y . Incr eases in RWW r etr ies can be due t o four f actor s: • Deter ior ati on in the media • Dirt y heads • Dri ve malfunc tion • The oper ating en vir onment Cor r ecti v e a[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 27 HP restricted 4 F actor s affec ting perf ormance This c hapter contains t echni ques and inf ormati on to help y ou design softw are appli cations s o that the y use the t ape dr i ve ’s potential as e ffi c ientl y as po ssible . • W ay s of optimi zing pe[...]

Factors affecting performance 28 HP restricted absolu te block si ze , performance should not suffer , but do ensure that the transf er si ze is at least 256 K B . Max imum bloc k si z e The READ BL OCK LIMIT S command indicates that bloc k si z es and var iable length tr ansf er si z es are supported for v alues between 1 b yte and 16, 7 7 7 ,215 [...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 29 HP restricted • All of thes e values ma y be subj ect to c hange . • Ther e is no retensi on fac i lity . R ecommended support of log pages Some of the medi a -r elated data items on the log pages ar e dupli cates of data that is a vaila ble thr ough the REA[...]

Factors affecting performance 30 HP restricted Example: SCSI : Consider an 8 KB transf er at burst r ates o f 8 MB/s and 1 MB/s. The f ast tr ansf er tak es 1 ms, w hile the slo w tr ansfer tak es 8 ms. Since the r est of th e comm and m ay only take 4–5 m s, the d ifference of 7 ms is v ery signif icant . S A S and FC: The S AS link is capa ble [...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 31 HP restricted Dr i v e -r elated f actor s Recommendati on: • T ry not to put Ether net in the wa y of data tr ansf er unless st aging techn ology is be ing used; aggr egation of multiple Etherne t cli ents r emains a good str ategy to deliv ering on dri ve pe[...]

Factors affecting performance 32 HP restricted F ormat-related f actor s Recommendati on: A good tr ansfer si z e to aim at is 2 5 6 KB (12 8 KB m inimum). For an applicati on that use s 512 -b yte r ecor ds, eac h fi xed-mode tr ansfe r should transf er 512 recor ds. Hi gher transf er si z es a r e also r ecommended for higher compr ession r atios[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 33 HP restricted[...]

Factors affecting performance 34 HP restricted[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 35 HP restricted 5 Support ing Ultr ium f eatur es This s ectio n cov er s the follo wing featur es of HP Ultr ium dr i v es: • LT O C a r t r i d g e M e m o r y page 3 5 • Auto mation and dr i ve interface ( A CI a nd ADI) page 35 • Cleaning page 5 0 • Re[...]

Supporting Ultrium features 36 HP restricted Au tomation/De v i ce Interface ( ADI) Ther e ar e two elements to the Automation/De v ice Interface (ADI): • ADI T ransport Pr otocol (AD T) —a standar d pr otocol for comm unicati on between a S CS I automati on dev ice and a SC SI data tr ansf er dev ice, su ch as a tape dr i v e . The AD T protoc[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 37 HP restricted Au tomation Contr ol Interface (A CI) The A utomati on Contr ol Interface (A CI) protocol allo w s the acti v ities o f the dri ve to be coordinat ed w ithin a library . T he prot ocol has been designed so that it can be made into a standar d featu[...]

Supporting Ultrium features 38 HP restricted cartridge at the moment that the dri ve starts to pull it int o the dri ve , if it is confi gur ed for that ty pe of operati on. This degr ee of control o v er s y nchr oniz ation cannot be achi ev ed though the host’s back up softwar e; it must be contr olled directl y b y the libr ary contr oller . M[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 39 HP restricted • Send S CS I w ith the follo wing opcodes: Ne w featur es in A CI 4. 3 The follo wing s ecti ons des cr ibe the differ ences betw een r e v isio n 4.2 of the A CI spec if i cation , us ed in HP L T O Ultrium 3 dr i v es , and r ev ision 4. 3, us[...]

Supporting Ultrium features 40 HP restricted • If the dri v e r ecei ves a vali d A CI 4.1 f ormat S et Dri ve Conf igur ation command. • An A CI 4.2 or A CI 4.3 f or mat Set Dr i ve C onf igur ation command w ith the A CI M ajor/M inor Ve r s i o n f i e l d s s e t t o 4 1 h . • The ta pe dri ve is r eset . Fibr e Channel tape dri ves do no[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 41 HP restricted When the dri ve has completed the second step of initi ali z ation, it w ill r espond normall y to all supported commands, and it w ill r epor t the corr ec t Manufac tur ing Date Code and Ser i al Number in the corr esponding f ields of the Get Dr[...]

Supporting Ultrium features 42 HP restricted The Enc ryption S tatus bits indi cate the cur r ent enc ryption/dec rypti on status of the S SC dev i ce server : F urther details F or mor e inf ormati on about A CI, see the A CI Specif i cation suppli ed b y HP . Supporting the A CI protocol Softwar e v endors implementing support fo r attached libr [...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 43 HP restricted T able 1 Non-queued A CI com mands T able 2 Queued A CI commands T reatment of r eserved f ields T o e n s u re fo r wa rd s c om p a t ib i li t y wit h fu t u re ve rs io n s of t h e ACI , au t om a t io n c on t ro ll e r fi rmwa re should set [...]

Supporting Ultrium features 44 HP restricted Dur ing the second st ep of the po w er -up s equence , the tape dri ve w ill r espo nd with BUS Y status t o all A CI commands ex cept Get Driv e Inf o and Get Err or Inf o . The amount o f time tak en by this s econd step w ill v ary widel y depending on thr ee fact ors: • The pr es ence or absence o[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 45 HP restricted HP r ecommends conf igur atio n of the upgrade pr otect featur es to enabled . (the Upgr ade Pr otec t bit of the Set Dri ve Conf igur ation command is set to 1). This w ill ensur e that if a fir m war e upgr ade cartridge is loaded inad vertentl y[...]

Supporting Ultrium features 46 HP restricted pr ocess and that the normal pow er-up A CI command se quence is f ollo wed to ensur e that the dr i v e is confi gur ed corr ectl y and to v er ify the fir mw ar e v ersi on and A CI v ersi on . F irmw are up gr ade v i a the prim ary host int erface The libr ar y controller w ill not have dir e ct v is[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 47 HP restricted Cleaning cartri dge (HP -conf igur ed or Univ ers al) When a vali d cleaning cartri dge (one that has no t e xpir ed) is loaded, beha v ior depends on the Clean Pr otec t bit of the Set Dr i v e Conf igur atio n command. Expir ed cleaning cartr idg[...]

Supporting Ultrium features 48 HP restricted Data car tri dge w ith unreadable CM If the Cartridge Memory cannot be read , the dr i ve as sumes that the cartr idge is not supported . If the cartridge is loaded into the dr i ve , it will be plac ed at the r eady-to -ej ect point w ith the Cartridge Pr esent , W r ite Pr otect , R eady E ject , Re ad[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 49 HP restricted I nval id fi rmwa re up gra d e c a r t rid g e If a fir m war e upgr ade cartri dge w ith an inv alid f irm ware image is loaded , and neither the libr ar y contr oller nor the host know s that the cartridge is a f irm w ar e upgr ade cartridge , [...]

Supporting Ultrium features 50 HP restricted Res et ti n g d rives The tape dr i v e can be re set b y the automati on contr oller v ia the A CI Reset command or , in A CI mode , b y pulling the A CI_RS T_L line low (s ee “R ear P anel and Conn ector s ” , C hapte r 7 of the H a rdwa re I n t e gra t i on G u i d e , V olume 1 of the HP L T O U[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 51 HP restricted Co ntr olling data compr essi on The data compr ession har d war e in HP Ultrium dri ves can detect w hether incoming data is alr ead y compr essed and w ill not attempt to compr ess it again . T he dri v e can s w itch d y namically and automati c[...]

Supporting Ultrium features 52 HP restricted Wr i t e d e l a y t i m e The W rite Dela y Time f iel d (byte s 6–7) on the Dev i ce Conf igur ati on mode page (10h) spec ifi es the inacti v ity delay bef or e the dr iv e w ill automati call y flush its data buff er . A value of 0 is an infinit e dela y; an y other value is the dela y in 100ms uni[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 53 HP restricted 6 Sens e k e y s and codes Sens e k e y s—acti ons to tak e Ultrium dr i v es f ollo w the AN SI def inition o f sense k ey s. T he fo llo w ing table e xplains ho w the driv es inte rpret sense k ey descriptions. As sense k e y s and additional s[...]

Sense keys and codes 54 HP restricted 2h NO T READ Y This se nse k e y gener all y means the host w ill ha ve t o wait f or the dri ve to become READ Y . Media access is not pos sible . See “3h—MEDIUM ERROR” on page 6 2 . Also see t he Me dia Ac cess pr e -ex ec uti on chec k . Actio n: The host needs to take one of the follo wing actions: ?[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 55 HP restricted 4h HW ERROR This indicat es that the c urr ent I/O op er atio n has failed due to a har dw ar e failur e.T he FRU code in the sens e data should indicate whi ch part of the har d war e is bad . The dr i ve should not be us ed again until corr ecti v[...]

Sense keys and codes 56 HP restricted 7h DAT A P R OTE CT I O N T his is an er r or if the I/O oper ation is attempting to acces s the media in some manner and failing becau se data on the media ma y not be accessed at this time (f or ex ample , becaus e the tape is wr ite-protect ed; or the dri ve is unable to decrypt data becaus e the key i s i n[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 57 HP restricted Additi onal sense codes—ac ti ons to ta k e Thes e tables pr o v ide inf ormati on about sense data , so that softw ar e can know w hic h additional sense codes can be r eported under whi ch sens e k ey s. It is important that the oper ating sy st[...]

Sense keys and codes 58 HP restricted 0h—NO SENSE The f ollo w ing action appli es to mos t additional sense codes in this gr oup: Actio n: F or all additional s ense codes e x cept 8 2 8 2h, the acti on of the so ftwar e depends on the cur r ent I/O and what the oper ating s y stem has been e xpecting . R ecov ery depends on the oper ating s ys [...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 59 HP restricted 1h—RE C O VERED ERR OR NO TE: Rep o r t i n g of re c ove re d e rro rs d e fa u l t s to O F F . 2h—NO T READ Y Actio n: In all cases, ac tion depends on the de v ice c lass and oper ating s y stem . Code Meaning Comments 37 0 0 R ounded parame[...]

Sense keys and codes 60 HP restricted 04 01 LU N i n p ro c e s s o f becoming r eady A media acces s command has been rece i ved w hile a load is occurr ing with immediate r eport on, or initiated thr ough the fr ont panel , or a differ ent hos t initiated the command. Action: 1. Effec tiv el y poll the dri ve by r e -sending the command until the[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 61 HP restricted 30 03 Cleaning cartri dge installed. A medium-acce ss command has been sent t o the dr i v e whi le a cl eaning cartri dge w as lo aded. Actio n: 1. T erminate the c urr ent I/O , and retur n the appr opr iate error . 2. Send a mes sage to the conso[...]

Sense keys and codes 62 HP restricted 3h—MEDIUM ERROR Code Me aning Comments 00 02 End of T ape detect ed A READ , SP ACE , WRITE or WRIT E FILEMARK S command found E O T unexpect edly . This typi call y occ urs w hen a dri ve cannot locate the tar get obj ect on tape becau se the block count is t oo gr eat .The E OM f lag w ill be set . Actio n:[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 63 HP restricted 11 00 Unre cov er ed r ead err or A r ead fr om tape has failed . T his is pr obabl y due to bad media , but ma y be hard w ar e -r elated . Actio n: 1. T er minate the c urr ent I/O and r etur n the appr opr iate err or . 2. Send a console mes sage[...]

Sense keys and codes 64 HP restricted 14 03 End of data not f ound A r ead-t ype oper ation failed becaus e a for mat v iolati on r elated to a missing E OD data set , or ther e was an attempt to r ead a brand ne w ta pe. Actio n: 1. T er minate the I/O and r etur n the appr opr iate er r or . 2. Send a mess age to the console indicating that E O D[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 65 HP restricted 30 0 7 Cleaning f ailur e A cleaning oper ation was attem pted but could not be completed for some r eason . Actio n: Use another cleaning cartri dge because the c urr ent one has e xpir ed. 30 0D WORM medium—integrity chec k failed The dr i v e h[...]

Sense keys and codes 66 HP restricted 3B 00 Sequent ial positioning err or The dr i v e has failed to r ead d ata off ta pe . Ther e ar e two possibilit ies: • The cur rent c om ma n d ( su ch as READ , SP A CE , REWIND , or WRI TE ) failed to complete successf ully . • The logi cal positi on has been lost . Actio n: 1. Attempt to r eco ve r by[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 67 HP restricted 4h—HW ERR OR The f ollo w ing actio ns apply t o most additi onal sense codes f or HW ERR OR sense k e y: 53 0 0 Media load or e ject f ailed A load or ej ect has failed . Actio n: 1. T er minate the c urr ent I/O and r etur n the appr opr iate er[...]

Sense keys and codes 68 HP restricted 5h—ILLE G AL RE QUE S T The f ollo w ing acti ons appl y to all additional sens e codes in this gr oup: 53 01 Unload tape failur e The tape unload failed becau se it cannot be ph y sicall y completed at this point in time. Actio n: see abov e 82 83 Bad micr ocode detect ed The data tr ansf err ed to the dri v[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 69 HP restricted 6h—UNI T A T TENT ION 26 0 4 Inv ali d r el ease o f pe rsis ten t res e r va t i on The P ersisten t Rese rvation ho lder has tr ied to r elease the persiste nt r eserv ation u sing the PERSI STEN T RESE RVE OU T command, but the S cope or T ype [...]

Sense keys and codes 70 HP restricted 29 0 1 P ow er -on reset The dr i v e has po w er ed on since the host last acce ssed it . Actio n: 1. The acti on of the calling appli cation depends on the cu rr ent I/O and what the oper ating s ys tem is ex pe c ti n g. 2. F or par allel S C SI , the host should r enegoti ate tr ansfer paramet ers , and rec[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 71 HP restricted Actio n: When operating the dr i ve in this ty pe of env ironment , the fo llow ing actions should occ ur : 1. The calling appli cation r ecei ving this code should issue a MODE SE NSE command reques ting the dri v e to r eturn all par ameters . 2. [...]

Sense keys and codes 72 HP restricted 7h—D A T A PR O TECT ION Code Me aning Comments 26 1 0 Data decrypti on k ey f ail limit re a ch e d A SECURI TY PR O TOC OL OUT command has f ailed becaus e an incorr ect k e y has been sent to the dri v e follo w ed by a r ead, and this has ha ppened ten time s consec uti v ely . Actio n: Fu r t h e r SECUR[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 73 HP restricted 30 0C WORM—o v erwr ite attempted A writ e oper ation could not be e x ec uted becau se an o verw rit e has been attempte d on a W ORM cartri dge . This may be becau se an o verw r ite back up w as s pec ifi ed instead of an appended back up. Acti[...]

Sense keys and codes 74 HP restricted 8h—BL ANK CHE CK 74 0 3 Incor r ec t data enc rypt ion k ey The d r i v e r ead in to a blo ck o f dat a w hic h coul d not be decrypt ed wi th the cur r ent decrypti on k e y . Actio n: 1. Send a SECURITY P RO T OCOL IN w ith the page set to Ne xt Block Enc rypti on Status to obtain infor matio n about the n[...]

HP LTO Ultrium 4 drives technica l reference manual, volume 2: software integration 75 HP restricted Bh—ABOR TED COMMAND The f ollo w ing action a pplies t o all codes in this group: 14 03 End of Data not found A r ead-t y pe oper ation f ailed becaus e a for mat v iolati on related to a miss ing EOD d ata set. The most likely cause is a tape w i[...]

Sense keys and codes 76 HP restricted D h — VO LU M E OV E R F LOW NO TE: When the sens e , additional s ense and qualify i ng sens e k e ys ar e listed , the softw ar e may look at all three k ey s to determine ac tion . T he dri v e should use that e xact combinatio n to r eport that partic ular err or . F or e x ample , a dri ve will report th[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 77 HP restricted 7 Ex c epti on handling The se pages co v er methods of dealing w ith certain er r or conditions and e x cepti onal c ir c umst ances. The y include the f ollo w ing: • A suggested Es calation Pr ocedur e to follo w w hen ex cepti ons occur • H[...]

Exception handling 78 HP restricted 5. Pa r a l l e l S C S I o n l y : Allo w the S y stem Superv isor or support person to perf orm a contr olled har d SCS I Bu s Re s e t. If the LO G I C A L U N I T R E S E T T ask M anagement functi on fails to clear the pr oblem, the S ystem Supervisor or tec hnical support per son should be able t o perfor m[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 79 HP restricted F lags The f ollo wing table lists the flags that could pote ntiall y be supported in tape dri ves. Of these , f lags 3, 4,5, 6,20,2 2 and 31 are mandatory for dr iv es suc h as Ultr ium dri v es that support cleaning cartridge s. The f lags are gr[...]

Exception handling 80 HP restricted 4 Me di a C  Y our data is at r isk: 1. Cop y an y data y ou r equir e fr om this tape . 2. Do not use this tape again . 3. Re start the oper ation w ith a differ ent tape . Media perfor mance is se ver ely degraded or the tape can no longer be writ t en o r re ad. This f lag is set for an y unr ecov er able r[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 81 HP restricted 10 No remo val I  Y ou cannot eject the cartr idge because the t ape dr iv e is in use . W ait until the operation is complete bef or e ej ecting the cartri dge . A manual or softwar e unloa d was at tempted when Pr ev ent Medium Remo val was in[...]

Exception handling 82 HP restricted 19 Nearing media life I  The tape cartridge is near ing the end of it s calc ulate d lif e . It is r ecommended that y ou: 1. Use another ta pe cartridge f or y our next bac k up . 2. Stor e this tape cartri dge in a safe place in case y ou need to res tor e data fr om it. The t ap e m ay have e xceeded its sp[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 83 HP restricted 24 Retension request ed W The tape dr i ve has req uested a r etensio n operati on . The dr i v e is hav ing trouble r eading or w r iting that w ill be r esol v ed b y a r etensi on cycle. 25 Dual-port interface err or W A r edundant interface por[...]

Exception handling 84 HP restricted 32 Interface W The tape dr i ve has a pr oblem w ith the applicati on cli ent interface: 1. Chec k the cables and cable connectio ns. 2. Re start the oper ation . The dr i ve has i dentifi ed an interface fault . 33 Eject media C  T he oper ation has failed: 1. E jec t the ta pe or maga zine . 2. Insert the ta[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 85 HP restricted 51 T ape dire ctor y inv alid at unload W  The ta pe dir ectory on the tape cartri dge jus t unloaded has bee n corr upted . F ile sear ch perfor mance w ill be degr aded. T he tape dir ect ory can be r ebuilt by r eading all the data. An err or[...]

Exception handling 86 HP restricted Note that often mes sages w ill not appear in isolati on. F or ex ample , mess age 01h ( “ The tape drive is having pr oblems readin g data. ”) is likel y to appear w ith a message suggesting r emedial ac tion , suc h as message 0 4h (“ You are advis ed to copy any data... ”) or message 14h ( Clean Now ).[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 87 HP restricted NO TE: Once clear ed, a flag cannot be set again unti l the s pec if ied c lear ing conditions ar e met. So , f or e xample , if the cartri dge in the dri ve is not of data gr ade , once flag 8 has been clear ed , it cannot be set again until th e [...]

Exception handling 88 HP restricted In addition , the applicati on can deter mine whi ch T apeAlert flags ar e supported by the dev ice s erver thr ough the T apeAlert supported flags VP D page (B2h). T apeAl ert polling usage model In this model, the applicati on confi gur es the dev i ce server by setting the T ASER b it in the Dev ice Conf igur [...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 89 HP restricted 5. Optionall y , automate the recommended r eco v ery actions if ther e ar e multiple tape dr iv es or autoloader s pr esent . F or e x ample , the appli cation could perf orm a c leaning cy cl e in r esponse to f lags 20 (Clean No w) and 21 (Clean[...]

Exception handling 90 HP restricted 1. Clean the heads and try the operatio n again. 2. If the ‘Clean ’ LED is lit again , r epeat the oper atio n w ith another tape cartr idge . If this c lears the ‘Clean ’ LED , it indi cates that the or iginal cartr idge is at fa ult . Cop y the data fr om the cartri dge onto a new one and discar d the o[...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 91 HP restricted Glos sary ANSI Ameri can National S tandar ds Institu te , whi ch s ets standar ds f or , amongst other things, S CS I and the safe ty of electr ical de v i ces. BOM Beginning Of Media. The f irs t point on th e tape that can be acce sse d by the d[...]

92 HP restricted offlin e The dr i v e is offline if the tape is c ur r ently unl oaded or not in the dri v e . The ho st has limited access , and cannot perfor m an y commands that w ould caus e tape moti on. T he host can , ho we ver , load a tape , if one is inserted, and can e x ecu te an y diagnos tic te sts that do not r equir e tape moti on [...]

HP LTO Ultrium 4 drives technical refer enc e manual, volume 2: software integration 93 HP restricted Inde x A ACI 17 , 35 , 37 cleaning 49 command set 38 commands that affect streaming 38 firmware upgrade 46 protocol communications retry 45 reserved fields 43 resetting drives 50 supporting 42 ACI 4.3, new features 39 additional sense codes 57 ADI [...]

94 HP restricted EOM 58 , 62 , 91 EOPD 22 EOT 76 errors hard 91 parity 75 read 63 write 62 , 66 escalation procedure 77 EW-EOM 91 exception handling 77 F faults, predicting 13 , 78 filemarks 91 detected 58 use of 32 firmware revision 13 firmware upgrade 45 , 48 loading an invalid cartridge 49 fixed-length block mode 11 flags, TapeAlert 79 format, c[...]

HP LTO Ultrium 4 drives technical referenc e m anual, volume 2: software integration 95 HP restricted P parity error 75 partition size 52 pass-through mode 38 , 90 performance factors 27 drive-related 31 format-related 32 host-related 29 performance log 28 polling frequency, Get Drive Status 45 power-up sequence 43 problems, predicting 13 , 78 prod[...]

96 HP restricted[...]