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Summary of Contents for 3340

Page 1: ...GA26 1619 4 FileNo 5370 07 Reference Manualfor Systems IBM 3340 3344DiskStorage IEnfi...

Page 2: ...gntade Bcforc usttrgihis grubliczrtion irrcorrnectionwith the operation of IBM equiprnent c ntactthe loc rlIBM Branch flice for rcvisions copies of this arrdother 81 1publicationscan be obtained thr i...

Page 3: ...1 R c v i s c dM a y 1 6 l t 7 6 By l NL N26 012ti CONTENTS AccessMotion Time Head SelectionTime RotationalDelay Data l ransfer l1 Data Securityand Privacy 11 ReadOnly Function 11 F i l e P r o t e c...

Page 4: ...pracrtrcs Wirh Kcys Data fr4oduie Capaciticr V 1irh KL y s ErrclrC inclitiorr fehlc RccoveryActiorr l ablc lic nse Lurnrnand lontrol onrnrirrrils Rcaci ornnrarrds Writ e ornmanLls Search ornnrarrrls S...

Page 5: ...eris rinawareof defects INTRODUCTION IBM 3344 B2IB2F DISK STORAGE TheIBM 3344 BZlB2Fdual drive unit provides increased capacity lower cost per byte directaccess storage Each3344drivestoresfour timesth...

Page 6: ...tsthe head Readsor writesdata Provides safetyandservicing information for subsys tem andsystemevaluation Figurel IBM 3 140 3344 DiskStoragc IBM 3340 8l One Drive IBM 3340 82 Two Drives and IBM 3344 Tw...

Page 7: ...uces lhe channelcontrection timc requirecl to scarchfor a givenrecortlal te r thc track anclhcadhavetreen sclccted This ferature optionaltltl the 33 10 stanclard inthe 3344 disconnects ther drivc from...

Page 8: ...agecontrolfor the modelsshownirs eithera 31330 2 or an IntegratedStoragcControl The 3830 2 and eachISC path can attachup to 32 drives four strings of 3333 3330s 3340s or 3350sin any cornbi nation 3340...

Page 9: ...ration Hexadecimal Adclressing 3340 82 Drive No 0 1 String1 3340 A2 0 1 String2 3340 A2 3340 82 Drive No Drive 2 3 No String3 3340 A2 3340 82 PrimaryAddresses Figure 3 ISC or 3830 2 34013341Maximum Co...

Page 10: ...Thc disk datasurfaceis divideclinto concentricbands of clatacalledtracks seeFigure4 achdatirsurface usestwo rnagnetic lcad wr iteheads one for the insicle irac ksanclone l or the clutsictre tracks Ihc...

Page 11: ...nt nr 000 002 I oo4 698 rreaas 0 s Both Odd and Even Cylinders Odd tracks fo low odd index even tracksfollow evenindex l t n o OddCylinders 001 003 005 699 heads 6 1 1 EvenCylinders 000 002 004 698 he...

Page 12: ...a records The records and areaswithin the records are separatedby gaps Home Address Each track contains one home address which defines the physical location of the track track address and the conditio...

Page 13: ...usedto determinethe numberof equal lengthrecordsper track The homeaddress and standardR0 spaceandskipdefectaretakeninto consideration WhenR0 is not standard thefollowingformulashould be used Records...

Page 14: ...e selected cylinde r For 3348 35 0 1 1 Fo r 3348 70 0 11 For 3348 70F0 1 1 cylinder s 1 5 fixed hea ds DCB DetectionCode Bytes Generated by the 3340 42 and usedfor error detection l igurc 6 Record an...

Page 15: ...itetrack number within the selected cylinder F o r 3 3 48 3 5 0 1 1 F o r 3 3 48 7 0 0 1 1 For 3348 70F 0 1 1 cylinders1 5 fixed heads R RecordNumber Specifies the sequential number of the recordon th...

Page 16: ...4 186 4 023 3 836 3 683 3 5 1 0 3 348 3 1 68 3 003 2 856 2 660 2 520 2 331 2 166 1 989 1 840 1 68i 1 5 1 2 1 333 1 1 4 4 990 828 658 480 343 1 5 0 1 2 24 36 48 60 7 2 84 96 1 0 8 120 132 144 r 5 6 1...

Page 17: ...12 5 566 608 4 777 344 4 134 240 3 457 728 2 747 808 2 OO4 480 1 432 368 626 400 8 352 16 704 25 056 33 408 41 760 50 112 58 464 66 816 75 t68 83 520 91 872 100 224 108 576 116 928 125 280 133 632 141...

Page 18: ...28 5 382 5 1 38 4 905 4 656 4 420 4 1 7 6 3 933 3 680 3 444 3 190 2 967 2 7 1 2 2 475 2 236 1 998 1 736 1 508 1 260 1 023 768 528 306 1 2 24 36 48 60 7 2 84 96 1 0 8 120 132 144 1 5 6 1 6 8 1 8 0 192...

Page 19: ...648 7 249 536 6 297 408 5 2 6 1 7 6 0 4 272 048 3 207 168 2 204 928 1 277 856 8 352 16 704 25 056 33 408 41 760 50 112 58 464 6 6 8 1 6 75 1 68 83 520 91 872 100 224 108 576 116 928 125 280 133 632 14...

Page 20: ...eekcommand to the required drive These and other commandsare describedin the ISC and 3830 2 referencemanuals Bytes 0 and I are unused bytes 2 and 3 ilre the logical cylinder address and bytes 4 and 5...

Page 21: ...quipped with an inset in the handle The operator can change the inset position before inserting the data module in the drive Note Iftis insert is only accessible when the data module is not on the dri...

Page 22: ...e e rrorrecovery procedures cancorrecttheunusualconditionand continuethe operationin progress from the point of interruptionto the normalendingpoint RESTART CCW I RestartCCW 1 is constructed asfollows...

Page 23: ...of the CCW designated by thepointerin Step2 plusthecountof that CCW minusthe RestartCCW countgenerated in Step2 If another Operation Incomplete occurs while execut ing the Restart CCW a new Restart C...

Page 24: ...le data check in a non multitrackdata areaor the data areaof the lastoverflow segment 7 Yes 0 2 1 4 I 7 DataCheck Correctable OperationIncomplete Correctable data check ir r data areaof overflow segme...

Page 25: ...ion that data hasbeencorrected Useris operatingin PCI fetch mode and mtrst therefore suFrply restart recovery action Note Only applies with 05 360 c lf the use r s chainhasno t bee ncomp l e te d e x...

Page 26: ...seek argument before issuin g the seek tf that is impossible then tOSmust perform Action 2 Performerror correctionfurrction Examin ebit 7 of the file mask lf th i s bi t i s o ff g o to s t e pc l f...

Page 27: ...I C channelstatusword 8 Note lf the modified seek argument is not within the user sextent then tOSmust supply the correct seek argument before issuing the seek lf that is impossible then tOS must perf...

Page 28: ...gr the seek lf that is impossible then IOS must perform Action 2 a Lr c lncrernentthc Lrser s seekarqumentby one ConstructRestartCCW 1 Cornplr te the intcrruptedoperationand continuethe user schain f...

Page 29: ...he comnrancls is briefly sunrmarized in thc chartson the followingpa r cs Pagc rl iA2 r l l9 l lliYill Il 1 ii i Iill CHANNELCOMMANDS READCOMMANDS r ReadData e RcaclKey and Data o ReadCourrt Key and D...

Page 30: ...start l O Command code 0000 0000 notwrittenby programmer Onestatusbyte Sense l Ct o4 Determinescause of last unit check Sense data is reset after transfer 24 bytesof sensein formation Readand Reset B...

Page 31: ...DataLength two bytes for the next command Recalibrate 1 3 Moves the access to cylinder0 andselect head0 None Restore t 7 No action Zeroinitialstatusisfollowedby final status of Channel EndandDeviceEn...

Page 32: ...din the storage controlbufferarea A subsequent Diagnostic Sense commandtransfers theerrorcodemessage to mainstorage requires a special filemask A maximum of 512 bytes Device Release 94 Terminates the...

Page 33: ...om drive to main storage Firstkey anddata areaafter address markeror the key anddataareathat wascommand chained from the count areaof the same record ReadCount 1 2 92 Transfers nextcountarea 8 bytes f...

Page 34: ...equired to access the lastrecordprocessed on the drive Whenchained the bytetransferred isthe angular position of the recordusedin the previous CCW Read Multiple Count Key and Data SeeNote5 5E Transfer...

Page 35: ...ta SeeNote l 01 SameasWriteCount Key andDatacommandexcepta 1 is writtenin bit 4 of the flagbyteto indicate a recordoverf low segment SameasWriteCount Key andData WriteData SeeNote 2 05 Changesthe data...

Page 36: ...t recordon the track Datafor the areas comesfrom the system Thecountarea flagbyte ECC andgap datacomefrom storage control Note 6 Must be chainedfrom a stisfied Search HA witn the CCWcount area of four...

Page 37: ...system Search Key Equalor High SeeNote4 69 E9 Locatesa key areaselected bY the system Thekey areabytesfrom the selected driveandtrackwith the keyareafrom the system Search lD Equal or High SeeNote5 7...

Page 38: ...ion l he follow_ ing manualsarerecommended for System l 70Models l15 125 and135users o IBM System 37 Model II5 Functional Characteristics OrderNo GA33_l510 o IBM System 37 Model 125 Functional Charact...

Page 39: ...6 Re a doo e ra ti o n 0 5 W ri t e o p e ra t i on Byte 4 3340 Drive ldentif icatiorr DriveA DriveB Drive C DriveD Drive E Drive F Drive G Drive H Byte4 3344 Drive ldentification Controller AddressB...

Page 40: ...t lCheck lTrack ChecklCrossing llatch lMode Latch llatch jeyte tZ jvtuttipte jCapable lwr t jrnoer lRead Write lControl iwrite lwrrte lRead Write Head lEnabl lOverrun lCheck lWrite lCheck lTransition...

Page 41: ...E l o l 1 1 l l i I PresentSegk Address 1 4 i 0 i I L o grc a lHe a d Ad d re s s l q i z i l I i 1 li Ct lUnuscri i J i Re De t t v e c o rn mari co ve rru nso rl G i o p eri rt ro r rs l r T 1 jit i...

Page 42: ...c od e s 1 3 5 6 7 8 an d 9 _ To n ls n ls L n l lCheck lOtt rract lvooeLatcn lLatcrr lvooe t atcr lt 1 _ l l I f f lrtr eLo lsER f G p C I w Data Monitor lr _l __ lcnecr pheck lcheck l9lg9 I l l T I...

Page 43: ...D Microprogram errormessages sense byte18 bits4 7 Fo rfix ed headt racks b o th cylinder512 an d cylinder2 5 6 b i ts a re e q ua lto 1 a n d t he cy l i n d erl ow b i t 7 s ho u l db e interpretedas...

Page 44: ...l s l l l l L l l e a u l l u Y I I U u y t c I lerror lindataarea i I r Jerror Tr ansmit 3 340 lData f ield ltixeoheaderror lrnco rrectable i _____ __f_ r iTra nsmit iNot used I ldrlterence error I I...

Page 45: ...SENSEBYTE FORMAT 4 SUMMARY Bito 1 2 3 4 5 6 7 CYLIN DER AD DRESS CYLINDER ADDRESS HEAD ADDRESS HEADADDRESS RECO RD NU MBER SECTOR NUMBER FAULTSYMPTOM CODE FAULTSYMPTOM CODE Sense Data 4l...

Page 46: ...RE SS CYLIND ER ADDR ESS HEADADDRESS HEAD ADDRESS RECO RD N UMBER RESTART DISPLACEMENT RESTART DISPLACEMENT RESTART DISPLACE MENT ERRORDISPLACEMENT ERROR PATTERN ERROR PATTERN ERROR PATTERN Count lden...

Page 47: ...AreasOnlvl NUMBER OF SEEKCOMMANDS PROCESSED NUMBER OF SEEKCOMMANDS PROCESSED CHANNEL A if bYte 18 bit 0 is 0 CHANNEL C if bYte 18 bit 0 is 1 DATA OVERRUNS CHANNEL A if bvte 18 bit 0 is 0 CHANNEL C if...

Page 48: ...d Wiite heads are moved to track 0 2 DM data module Attention is signa ledto the controller 3 Drive is placed online and CE mode is reset after maintenance completion 3344OPERATOR PANEL Ready Lamp The...

Page 49: ...On Switch Operationof the PowerOn switchallowsacpowerto be appliedto the 3340or 3344providedsubsystem pow i is present The switchis bypassed by the sequencing controlsduringa systempower upopera tion...

Page 50: ...e 3340 top cover being fulty cktsed c The 3348 Model 70F being used only on drives having the fixed head feature If the Model 70F is loaded on a drive wiith_ out the fixed head feature the Ready light...

Page 51: ...andle A andB 2 Turn inset180 andsnapinto place C 3 The datamodulemay now be loadedin the desireddrive A Read Write DisableReadOnly Function 1 With the datamoduleremovedfrom the drive returnthe IBM log...

Page 52: ...dstorage 4 33 A2 2 Control commands listing 25 summary 22 Correctableerrors 20 Count area 8 Cover locked 44 Cylinders alternates 6 cylinder boundary 20 number l0 D Data area 8 Data check 20 Data lengt...

Page 53: ...6 Module Data I Multitrackoperation 20 N No operation 27 No record found 20 Number cylinder l0 o Operating instructions data module loading 46 data module unloading 46 read only function 47 Yq 1344 op...

Page 54: ...ount key and data 32 Write data 31 Write homeaddress HA 32 Write inhibit 20 Write key and data 31 Write recordzero R0 3l Write special count key and data Nurneric 3340 3344 diskstorage configuration I...

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Page 56: ...Corporaiion Data ProcesslngDivision 1133WestchesterAvenue White plains New yorlk 10604 U S A onty IBM World Trade Corporalion 821 United Nations plaza New york New york 10t017 lnternational ft D D cl...

Page 57: ...ri please explainin the space provided All commentsand suggestions becomethe propr rtyof IBM Yes n No tsxplain I n n a o Yes No n l T L u How do you usethispublication As an introductionto the subject...

Page 58: ...o r d I F o t d I FirstClass Permit 2078 SanJose California 7 o o D 3 A o o 5 o 5 5 I t q o D l1 D z o o j T o U o N O o o A Postage will be paid by InternationaI Business Machines Corporation Depart...

Page 59: ...space provided All commentsand suggestions becomethe proprerty of IBM Yes n tr I No D Explain a a u C u D No n D Yes No n D N Whatis your occupation How do you usethis publication As an introductionto...

Page 60: ...o postage stampnecessary if mailedin the U S A FirstClass Permit2078 SanJose Californ ia r o D 3 o 9 5 o o o s 5 6 r U ot cI l 6 z G o o o f D a o N o ct o A Postage will bepaidby International Busine...

Page 61: ...rtt narv ol r rtenclntcr rts I Arld ticscriPtiort rr i Scrscl tO i r corrl rrl rrrtl l Iipdllt sonse l tc4 dr rvcitier rriilcui r rrr tt i r l 4 1 1 Upcla tc scrr sc tryLc2i tlrivc tder rttiit rl ti...

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