Honeywell FocusPRO 6000 Series Reference Manual Download | Manualshive

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Summary of Contents for FocusPRO 6000 Series

Page 1: ...s for the DSSl90 and DSSl90B Disk Storage Subsystems SPECIA L INSTRUC TIONS This manual supersedes the previous edition Revision 2 dated May 1974 This edition includes Series 6000 disk storage equipment only Since the contents of the manual have been extensively revised change bars and asterisks have not been us e d DATE January 1975 ORDER NUMBER 0337 Rev 3 ...

Page 2: ... specifications capabilities and optional features Section II contains a description of the specific functions performed by the subsystem including data formats instructions and status conditions Section III contains a description of the operator accessible controls switches and indicators and the procedures necessary to enable personnel to operate the subsystem The following manuals supplement th...

Page 3: ...tTrack RequestStatus ResetStatus WriteControlRegister ReadControlRegister ReadStatusRegister Release ReadEDACRegister ReserveDevice Q SetStandby l BootloadControlStore ITRBoot ExecuteDevice Execute Microcoded Device MD Routine Write Control Main Memory Binary or ASCII Read Control Main Memory Binary or ASCII Conditional Write Lock Byte Write Lock Byte IIOIIOOIOOOIOO OOOOCOOOOOOIOOOUIOOOOOO 0 OCCOO...

Page 4: ...ed Defective Track Detected No Alternate As signed Alternate TrackDetected InstructionRejected InvalidOperationCode InvalidDeviceCode Par ityAl ertonIDCW Invalid Instruction Sequence MPC DeviceAttention ConfigurationError Multiple Devices DeviceNumberError LAjError AlertEN l CA EN l Error CAAlertNoEN l MPCDevice DataAlert TransmissionParityError Inconsistent Command Checksunnlﬂrror ByteLLockout ED...

Page 5: ...y Trouble OverTemp AlarmReset Start Automatic Manual Int Ext ContStore Operator Interrupt Halted Initialize Address Simulate Control Configuration Switches DSU190 Operating Controls and Indicators DSU19OB Operating Controls and Indicators 0 SubsystemOperation DSC Operation DSUOperation DSU19OInitialization DSU19ODiskPackInstallation DSUl90DiskPackRemoval DSUl90BInitialization DSU19OBDiskPacklnstal...

Page 6: ...urfaces BasicTrackFormat HomeAddressField ROField RlField IncreasedCapacityFormat ICF COCountField DataFields CNCountField SeekInstructionFormat TrackHeaderFormat FormatTrackDataFormat ReadControlRegisterFormat DSC Operating Controls and Indicators Freestanding Control Operating Controls and Indicators Control Integrated inICU ControlConfigurationSwitches DSU19O Operating Controland Indicators DSU...

Page 7: ... interchangeable disk packs see Figure l l Storage capacity is 117 903 360 six bit characters or 78 602 240 eight bit bytes per disk pack or 91 375 104 six bit characters or 68 531 328 eight bit bytes using a basic track format This capacity can be expanded by the addition of up to 16 devices see Figure l Z or 32 devices for maximum online capacity using a single or dual subsystem see Figure 1 3 F...

Page 8: ... Channel 1 2 3 16 Figure 1 3 Dual Control Subsystem Data Data Data Data Channel Channel Channel Channel LA LA LA LA DSC DSC DCA DCA A DCA 1 8 9 16 17 24 25 32 NOTE LA Link Adapter DSC Disk Storage Control DCA Disk Control Adapter Figure 1 4 Dual Subsystem with Four Simultaneous Channels 1 2 DB3 ...

Page 9: ...installing optional hardware In addition to the loperator panel the DSC includes 0 A maintenance configuration panel 0 Forced air cabinet cooling system 0 Power supply and power control modules 0 A basic disk channel with a link adapter interface to the external user system EUS 0 An Additional Drive Electronics ADE190 with a disk interface to the disk pack drives The disk interface can connect up ...

Page 10: ...ing to all drives 0 For two controls with dual channels DCH190 and DCHI 90B crossbarring is provided to all drives DCX190 or DCX190B is not required Disk Pack Drives The disk pack dri ve used by the subsystem is either the DSU190 or the compatible DSU190B Disk Storage Unit The DSU190 Figure l 6A is an electromechanical disk pack drive with a single mounting spindle housed in a low profile cabinet ...

Page 11: ...ct to the disk recording surfaces The brush mechanism that cleans the disk recording surfaces during each power up sequence Two ports that permit the disk pack drive to be connected for simultaneous dual channel crossbar operation Direct current power supplies and power supply controls The Disk Storage Subsystem uses an M4050 Disk Pack or an equivalent removable disk pack see Figure 1 7 The disk p...

Page 12: ... in apart on a common hub 2 protective disks on same hub Number of Storage Surfaces l 9 Data 1 Servo Weight 20 lb with carrying case OPERATING ENVIRONMENT Temperature _ 15 32 C Humidity 20 80 STORAGE CAPACITY 91 375 104 six bit characters 68 531 328 eig htnbit characters Figure 1 7 Disk Pack 1 6 DB3 ...

Page 13: ...m configurations that may be used in a computer system are shown in Figures 2 1 through 2 4 The abbreviations used are ADE Additional Drive Electronics CCA or CA Control Adapter DCA Disk Control Adapter DCX Dual Control Crossbar includes associated cables and additional EDE electronics DSC Disk Storage Control refers to the complete control DSS Disk Storage Subsystem DSU Disk Storage Unit refers t...

Page 14: ... EUS DSC Figure 2 l DSSl90 or DSSl 90B with Six Additional Devices and a Switched Channel EUS EUS ILA LA DSC Figure 2 2 D581 90 or DSSI90B with 14 Additional Devices and Two Simultaneous Channels 2 2 DB37 ...

Page 15: ... with 17 or more drives Figure 2 3 Dual Control Two Single Channels Crossbarred Subsystem DCX r _ I F __ l IOMA I IOM B I P fifi m fi znﬂ _4 LA LA LA LA DSC DSC DCA DCA DCA I DCA ADE Egg ADE AEDE ADE EDP I ADE EDIE p a I __ _ _ l7 8 D58 1 90 or DSS 190B 49 9 7 D D 16 25 D85 1 90 or D58 1 90B Figure 2 4 Two Control Dual Channel Crossbarred Subsystem 2 3 32 DB3 ...

Page 16: ...ng as many as two LA s and two DCA s Disk Control Adapter DCA The DCA connects the DSC to the DSU s through the Additional Drive Electronics ADE EDE as shown in Figures 2 1 through 2 4 The DCA synchronizes buffers and converts information to be transferred between the DSC and the DSU s Information is transferred by the DCA to or from only one DSU at a time Two independent DCA s each can transfer i...

Page 17: ...ic recording surfaces numbered 0 18 see Figure 25 Each recording surface has 411 concentric tracks for a maximum total of 7809 tracks The tracks on each recording surface are numbered 000 410 track number 410 being the innermost A group of 19 tracks tracks with the same number for each of the 19 recording surfaces constitutes a cylinder 5 e tracks numbered 001 for each of the 19 recording surfaces...

Page 18: ...1 user data sectors per track as shown in Figure 2 6 Portions of the track format are described in more detail in Figures 2 7 2 8 and 2 9 c ross 4referenced in Figure 2 6 Home Address Field Figure Z 7 R0 Field Figure 2 8 R1 Field Figure 2 9 l Disk ll Surfaces l 19 L Figure 2 5 Disk Pack Recording Surfaces 2 6 D837 ...

Page 19: ...ORD DATA POINT I ﬁj I Figure 2 6 Basic Track Format DISK PACK CAPACITY The storage capacity of a disk pack and of the track format are shown in Table 2 2 Capacity measurements include lengths of fields measured in bytes 8 bits in words 36 bits and characters 6 bits Table 2 2 Disk Pack Capacity Basic Track Format Bytes Sector Bytes Words 288 Byte Bytes Disk Pack Formatted Sector Track Track Sector ...

Page 20: ...AD 7 15cc BYIES ﬂfﬁﬁ 7 BYTES USED FOR ERRUR DETECTION AND CORRECTION HOME ADDRESS FIELD 1 DESCRIBES THE CONDITION OF THIS TRACK 2 CONTAINS THE PHYSICAL ADDRESS OF THIS TRACK HEAD ADDRESS 0 15 CYLINDER ADDRESS 0 410 HIT 0 4 ZERO HIT 5 CE PACK BITS 6 7 UH NORMAL TRACK 01 ALTERNATH TRACK l HLFKC1IVH TRACK 1 A HLFHCIIVE WRACK BYTI tnm m rs 0 LOW ORDER CYLINDER HPAD I BITS 0 7 0 ZERO l HIGH ORDER CYLIN...

Page 21: ... R0 COL NT FIELD HAS THE SAME CCHH As HOME ADDRESS EXCEPT WHEN L SED FOR ALTERNATE 0R DEFECTIVE TRACK ADDRESS L j PHYSICAL I I DATA DATA YTES ADDRESS ELAC CYLINDER CYLINDER HEAD HEAD RLCORD IxE LENGTH LEXGTH LExGTH 7 ECC B t f f x I 4 SAME As HOTTE ADDRESS CYLINDER ADDRESS HEAI ADDRESS 0 410 I8 P I DEFECTIVE TRACK I SE CCHH 0F ALTERNATE TRACK ALTERNATE TRACK USE CCHH 0F DEFECTIVE TRACK NUMBER OF T...

Page 22: ...T FIELD DEFINES LENGTH OF DATA FIELD TRACK ADDRESS AND SECTOR NUMBER 0 3 DATA FIELD CONTAINS THE CUSTOMER DATE 4 DATA FIELDS CAN BE REWRITTEN WITHOUT A L_ CHANGING BALANCE OF THE TRACK 2 332 35 FLAG CYLINDER CYLINDER HEAD HEAD RECORD KEY LENGTH EEEéTH 82 ng 7 ECC BYTES J 9 V v V CYLINDER ADDRESS HEAD ADDRESS f SAME As HOME 0 410 H 81 NUMBER OF THE RECORD 1 31 ADDRESS DEFECTIVE TRACK USE CCHH OF AL...

Page 23: ...nt field are described in detail in Figures Z IOA INDEX AP 1 C0 COUI NIT AP 2 R0 IM I A arms was 4 SEE flGURE 2 108 GAP 3 R DATA GAP 3 R2 DATA SAP 3 R3 DATA 28 BYTES 288 7 ECC 3o BYTES 288 7 ECC 32 BYTES 288 7 ECC BYTES BYTES BYTES L 7 Six 24 we 55 39 21 am z l BYTES 28 BYTES 3 BYTES BYTES BYTES 30 3Y1 ES P INT A 7 Figure 2 10A Increased Capacity Format ICF 2 10 1 D837 ...

Page 24: ...2 BYTES WW W I W v A A A A BYTE RECORD NUMBER of Fan BIT BITS 0 4 ZERO 5 CE PACK 6 7 00 NORMAL TRACK 01 ALTERNATE TRACK II DEFECTIVE TRACK II DEFECTIVE TRACK CONTENTS 0 LOW ORDER CYLINDER ADDRESS BIT 0 7 0 HIGH ORDER CYLINDER ADDRESS I HIGH ORDER CYLINDER ADDRESS 2 ZERO 3 7 HEAD ADDRESS Figure 2 10B rAL l ERNA I I Z ADDRESS SAME FORMAT AS BYTES 0 1 2 3 CO COUNT Fl ELI 2 BYTES USED F6 ERROR DETECTI...

Page 25: ...UNT FIELD L II DEVK L liluis SYM ItliL UlU NO NUMBER 25 Ill IX I SYNC l BYTE _ j ﬁ GAP 3 AP BETWEEN DATA FIELDS l BYTE BY l 1 5 ALRUS 19 SYNC y CO COUNT AP 2 Rt R39 DA I A GAP 3 8 2 BYTES 28 IIYTES 288 7 EU BY I ES 28 30 32 BY I ES SEE FIGURE 2 108 0 GAPS ALLOW TIME TO CHANGE FROM READ T WRITE STATE 0R WRITE TO READ STATE 0 SYNC HEX l SAME AS GAPI Figure Z IOC Data Fields 2 10 3 DB3 ...

Page 26: ...2 032L215 CM 3 3 CAP 5 INDEX 3 p 2 y H I 3 31 BYTES 4 _ CC BYTLS 28 BY MS WES DATA FIELD 30 BYTLS POINT I 9 I V B v RO FIELD AND ALL O I HERS FOLLOWINC I NORMAL CUSTOMER DATA FIELD 2 COUNT FIELD DEFINES TRACK ADDRESS AND SECTOR NUMBER 3 DATA FIELD CONTAINS CUSTOMER DATA 4 DATA FIELDS CAN BE REWRIT I EN WITHOUT CHANGING BALANCE OF TRACK II I 2 3 4 5 I l I PHYSICAL I ADDRESS FLA RECORD 1 B Yl ES 1 I...

Page 27: ...11 These bits define the binary sector count Bit position 11 is the least significant bit 20 All zeros is a maximum count of 4096 Track Indicator TI Bits 12 13 These bits indicate a complete track as good defective or alternate 00 Primary Track Good 01 4 Alternate Track Good 10 Defective Track Alternate Track Assigned 11 Defective Track No Alternate Track Assigned Sector Address Bits 16 35 These b...

Page 28: ...ead Track Headera 010111 Format T racka 001 1 l 1 Write Control Registera 0011 10 Release Devicea 111110 Reserve Devicea 1 1 1 1 11 set Standbya 111010 Execute Devicea 011000 Execute MD Routine 110000 Read EDAC Reg istera 010001 Request Status 000000 Reset Status 100000 DSU or DSC Read Control Registera 010110 Read Status Registera 010010 Bootload Control Storea 001000 ITR Boota 001001 DSC Only a ...

Page 29: ...CIAL SEEK This instruction is used for T 81 D It is identical to the Seek instruction except that the sector address must reference a sector on cylinder 410 PRESEV EK This instruction is like a Seek instruction except that it may not be followed by a data tr ansfe r instruction REL E C RE T his instruction reestablishes the seek reference point by returning the read write heads f the selected DSU ...

Page 30: ...nt and data fields of the required track to the EUS The format of the data sent to the EUS is shown in Figure 2 12 HOME ADDRESS 0 V 7 8 15 16 23 24 I 31 32 35 WORD 1 CYLINDER CYLINDER HEAD HEAD a mmmR mmma mmmR mmmk DWI R0 COUNT FIELD O 3 4 11 12 19 20 27 28 35 b CYLINDER CYLINDER HEAD WORD 2 MBZ FL NUMBER NUMBER NUMBER R0 COUNT FIELD O 7 8 15 16 17 18 23 24 31 32 35 HEAD RECORD b b b WORD 3 NUMBE...

Page 31: ...ATA FIELD _ 7 o 3 a 11 12 19 20 27 28 35 110111 I b DATA DATA DATA DATA 1132 R0 DATA FIELD o 7 8 15 16 23 24 31 32 35 1101113 5 DATA DATA DATA DATA oooo a Track Indicator b Must be Zero Figure 2 13 Format Track Data Format REQUEST STATUS This instruction results in sending the controleheld status or the device held status for the last activity on the given logical channel to the EUS RESET STA TUS ...

Page 32: ...gure 2 14 Read Control Register Format Single Channel Noncrossbar Configuration Dual Channel Crossbar Configuration For each device by device number word 1 provides seek complete information and word 2 provides device available information by the combination of corresponding bits in words I and 2 Word 1 0 1 0 1 ofﬂine or attention READ STATUS REGISTER Word 2 0 Device available no information about...

Page 33: ...ansfers instructions one instruction for each Execute Device instruction directly from the EUS to the addressed device EXECUTE MICROCODED DEVICE MD ROUTINE This instruction executes the MD routine in the control main memory NOTE The instructions in the following paragraphs are special control instructions addressed to device zero These instructions cannot be mixed with normal instructions in the s...

Page 34: ... connected EUS including the issuing EUS READ LOGICAL CHANNEL NUMBER This instruction sends the logical channel number LA number and the peripheral subsystem interface nuInber to the EUS Major Status and Substatus Table 2 5 lists the possible status returns to the various instruction terminations The major statuses and substatuses are described in detail CHANNE L REA DY The Channel Ready status in...

Page 35: ...0 Invalid Seek Address 000100 Header Verification Failure 0X1000 Check Character Alert X1X000 Compare Ale rt 1X0000 END OF FILE 0100 GOOd Track Detected 000000 Last Consecutive Block 0000X1 Block Count Limit 00001X Defective Track Alt Assigned 000100 Defective Track No Alt Assigned 001000 Alt Track Detected 010000 INSTRUCTION RE JECTED 0101 Invalid Operation Code 000001 Invalid Device Code 000010 ...

Page 36: ...rrectable 011100 EDAC Corr Short Block 011101 MPC COMMAND REJEC J 1101 Illegal Procedure 000001 Illegal Logical Channel Number 000010 Illegal Suspend 000011 Continue Bit Not Set 000100 Retries When Automatic Retry is performed by the controller the binary number coded in the substatus is the number cf times the retry was performed Once a OOXOOI Twice OOXO 10 Three Times OOXO 1 1 Device in T 8 D Mo...

Page 37: ...te The access mechanism of the addressed device has failed to position after a determined period of time The controller has attempted to correct the condition three times with Restore and Seek sequences Device Inope rable The device is online but is operating in a fault condition and must be investigated The fault condition indicates the illegal combination of conditions within the device Device i...

Page 38: ...ill be returned if the physical address bytes read from a count field do not match the address in the previous Seek address or if an error occurs during the Format Track or Read Track Header instructions Check Characte r Alert The field cyclic check character generated in the CA did not match the one recorded on the media This status will be set for check character failures whether on a data field...

Page 39: ...nal Defective Track Detected Alternate Assigned A read or write type instruction is attempted on a defective track or overflow is assigned to a defective track and the channel instruction inhibits alternate track processing Defective Track Detected No Alternate Assigned This status is similar to the other Defective Track status except that the track indicators are binary 11 This indicates that no ...

Page 40: ...N MPC Device Attention status is an extension of the Attention status for all MPC con trollers It indicates an error condition that may require manual intervention Configuration Error This error condition will occur if the functionality firmware loaded into a controller does not agree with the configuration switches on the MPC operator panel Multiple Devic e s The controller has detected at least ...

Page 41: ...ected during the execution of a special controller instruction Inconsistent Command Lock byte number specified is outside the lock byte area in the DSC Checksum Error A checksum error on data was written to the MPC Byte Lockout A Conditional Write Lock Byte instruction referencesa lock byte that is nonzero locked EDAC Parity Error An MPC hardware error was detected in the EDAC generation Sector Si...

Page 42: ...d not find the second or subsequent count field Sync Byte Error The synchronization byte read from the addressed track was not as expe cted Alternate Track Error An error occurred in going to processing or returning from an alternate track EDAC Correction Last Sector A data error that may be correctable occurred in the last sector required 5 e NO was completed EDAC Correction Not Last Sector A dat...

Page 43: ...ocedure A Write Control Main Memory command was received and the controller was not in suspend mode or an initiate read or write dab transfer IDCW was not preceded by a special controller command IDCW Illegal Logical Channel Number An illegal logical channel number was received during an IDCW transfer Illegal Suspend The controller is suspended and an IDCW is addressed to a logical channel other t...

Page 44: ...e correct disk pack Bad or marginal track locations as found in manufacturing tests are noted on the disk pack carrying case labels or listings Marginal tracks will degrade in a few months and should be treated as bad tracks If more bad or marginal tracks develop preserve this information in a file Identify the disk pack by its serial number and list its bad or marginal tracks NOTE Early versions ...

Page 45: ...unless they are accompanied by operational problems SUBSYSTEM CONTROLS AND INDICATORS Controls and indicators for the subsystem consist of operating configuration and maintenance switches and operational status display lamps Operating controls and indicators are used during the normal operations of the subsystem and are easily accessible and visible to operations personnel Operating controls and i...

Page 46: ...AC BREAKER ON This indicator lights red when the DSC cabinet primary branch service power circuit breaker is on and power is being applied to the DSC from the EUS power source panel NOTE POWER ON The DSC cabinet circuit breaker is located behind the right front door at the bottom right side of the cabinet on the circuit panel This circuit breaker applies primary service power to the DSC and protec...

Page 47: ... cover and reset the OPERATIONAL MODE OFFLINE ONLINE switch to ONLINE if needed If the trouble persists notify the local Honeywell field service engineer OVER TEMP ALARM RESE T This split field indicator lights red in the OVER TEMP field and white in the ALARM RESET field The DSC audible alarm sounds if the DSC cabinet is too hot Pressing the switch turns off both the audible alarm and the white A...

Page 48: ... four Ithurnbwheel switches are used in conjunction with the OPERATOR INTERRUPT switch to permit the user to address various functions of the DSC The desired setting depends upon the specific application required In conjunction with the maintenance panel these switches are used for diagnosing the DSC Care should be taken not to change these switches while they are being sensed by the InicrOprogram...

Page 49: ...Down Port 2 Up Ports 2 and 3 Interval Timer Runout ITRO 4 Down Enable ITRO Up Inhibit ITRO Unassigned 5 6 Down Down Not applicable Rotational Position Sensing RPS 7 Down Disable Up Enable Control Configuration 8 9 10 Down Down Down Non Cros sba r Down Down Up Crossbar Not applicable Up Down Down Dual Control as seen by Software Automatic Retry AR 11 Down Enable AR Up Disable AR Unassigned 12 13 Do...

Page 50: ... functions of the Operator panel switches and indicators V VAII I ImﬂhtilI MICC I g tum u l oue we O O O O O O OFFLINE STANDBY READY ACPRESENT PROTECT CHECK STOPPED 1D H Figure 3 5 DSU190B Operating Controls and Indicators Table 3 2 DSU190 Controls and Indicators CONTROL 0R INDICATOR FUNCTION START switch indicator Energizes spindle drive motor and begins the First Seek sequence provided the follo...

Page 51: ... without write current 8 _ Write current without Write command 9 Write current Without write data Conditions 5 through 9 are known as current faults They are inhibited while writing address marks All conditions require that the SELECT LOCK switch be pressed or that the controller iSSue a DIN Lights when drive experiences either of the following conditions 1 Controller issues an SLS command 2 ONLIN...

Page 52: ... Indicator lights when STOP switch has been pressed Lights when disk pack rotation has stopped indicating that cover door may be opened Indicates that device is powered up but in the offline state Indicates a device fault condition Latch indicator must be reset by INITIALIZE switch Indicates that the write operation has been inhibited by pressing the PROTECT switch or by detecting a fault conditio...

Page 53: ...SU Operation DSU operation consists of turning cabinet power on and off when required monitoring the various indieators for operational status correcting temporary alert conditions restricting a DSU to read only operations when required stopping and starting the disk drive and installing or changing diskpacks when requested or needed refer to DSU Operating Controls and Indicators DSU l 90 INITIALI...

Page 54: ...the front cover is opened When a spinning drive is opened there is a loud ratcheting noise This will not damage the unit but it is not reconrmended Raise the front cover CAUTION During maintenance procedures the read write heads sometimes are positioned manually Make certain that the heads are fully retracted Place the plastic canister over the mounted disk pack so that the post pro truding from t...

Page 55: ...he disk pack onto the Spindle Twist the canister handle clockwise until the slip clutch resists further twisting The pack is now locked in place Lift the canister clear of the disk pack and set it on the bottom of the dust cover Close the front cover immediately to prevent dust from getting in and contaminating the disk surfaces DSU19OB DISK PACK REMOVAL l 2 m l 0 01 o o o Press the STOP switch to...

Page 56: ...uld be done by ope rations personnel DSC DSU Maintenance Operations personnel should keep the DSC and DSU cabinets clean and free of dust The DSU disk pack chamber and spindle may be cleaned with a lint free tissue lightly dampened with approved cleaning alcohol Disk Pack Maintenance PrOper handling storing and cleaning of disk packs ispimportant to give users a high degree of data availability HA...

Page 57: ...k in the operating room temperature for two hours before it is used 0 Store a disk pack in an environment identical to the disk pack drive operating environment 0 Never store a disk pack drive near strong magnetic fields nor in direct sunlight 0 Store a disk pack flat resting on its bottom cover Never store a disk pack on edge 7 78 3 12 DB37A ...

Page 58: ...PONENTS 1 3 CONFIGJRATION CONFIGURATION ERROR 2 26 CONTROL CONFIGURATION SWITCHES 3 3 3 5 1 SUDSYSTEN CONFIGURATION 1 1 CONSECJTIVE LAST CONSECUTIVE BLOCK 2 23 CONSIDERATIONS SUBSYSTEN CONSIDERATIONS 3 1 CONTROL ALTERNATE CHANNEL IN CONTROL 2 21 BOOTLOAD CONTROL STORE 2 17 CONTROL CONFIGURATION SWITCHES 3 5 3 5 1 DISK STORAGE CONTROL IDSCI 1 3 DSC OPERATING CONTROLS AND INDICATORS FREESTANDING CON...

Page 59: ...MISSION PARITY ERROR 2 25 tAILURE HEADER VERIFICATION IAILUNE 2 22 FIELD CN COUNT FIELD 2 10 CO COUNT FIELD 2 10 2 DATA rIELDh 2 10 Hone ADDRESS FIELD 2 8 NO FILLO 2 9 R1 fIELO 2 10 rIRST SEARCH TIRST StARCN TCONT SEARCH ALERT TIRST SEARCH 2 26 FORMAT BASIC TRACK fORHAT 2 6 2 7 FORMAT TRACK 2 15 SEEK INSTRUCTION FORMAT 2 11 TRACA HEADER FORMAT 2 IA FUNCTIONAL FUNCTIONAL CNARACTERISTICS OF THE DISK...

Page 60: ...INVALID SEEK ADDRESS 2 22 SEER INSTRUCTION FORNAT 2 11 SEEK 2 11 SEEK INCOMPLETE SEEK INCOMPLETE 2 21 SEND SEND SPECIAL INTERRUPT 2 1a SEQUENCE INVALID INSTRUCTION SEDUENCE 2 2A SET SET STANDBY 2 17 SIROLTANEODS 053190 on 0331906 NITN 14 ADDITIONAL DEVICES AND Two SIMULTANEOUS CHANNELS 2 2 DUAL SUBSYSTEM RITM TOUR SINULTANEOUS CHANNELS 1 2 SIZE NONSTANDARD SECTOR SIZE 2 25 READ NONSTANDARD SIZE SE...

Page 61: ...CORPUTﬁR GENERITED INDEX RITE ICON dRIIE ASCII 2 16 RIIE ICONTI IRITE CONIROL RAIN HEHORY BINARY OR ASCII 2 17 IRIIE LONIROL REGISTER 2 15 RITE INHIBI RITE 2 13 dRITE INHIBII 2 21 DB3 ...

Page 62: ...E MANU DATED JANUARY 1975 ERRORS IN PUBLICATION SUGGESTIONS FOR IMPROVEMENT TO PUBLICATION Please Prin 1 FROM NAME DATE COMPANY TITLE m Your comments will be promptly investigated by appropriate technical personnel action will be taken as required and you will receive a written reply If you do not require a written reply please check here I ...

Page 63: ...ILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS PERMIT NO 39531 WALTH AM MA02154 POSTAGE WILL BE PAID BY ADDRESSEE HONEYWELL INFORMATION SYSTEMS 200 SMITH STREET WALTHAM MA 02154 ATTN PUBLICATIONS M8486 HoneyWell F 7_ ___ _ ______ A CUT ALON _ _ o q _ _ _ _ ___ FOLD ALONG LINE FOLD ALONG LINE ...

Page 64: ...tham Massachusetts 02154 In Canada 2025 Sheppard Avenue East Willowdale Ontario M2J 1W5 In the U K Great West Road Brentford Middlesex TW8 9DH In Australia 124 Walker Street North Sydney N S W 2060 In Mexico Avenida Nuevo Leon 250 Mexico 11 D F 30730 5C381 Printed in USA D837 Rev 3 ...

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