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                        0663 Model L&H                          

IBM OEM StorageProducts

FEATURES 

Industry-standard interface:  ANSI/SCSI-2
Integrated controller
1,004 MB formatted capacity (512 & 520 bytes/sector) (models H12 and   L12)
Logical block addressing
Implied seeks
SCSI disconnect and reconnect capability
SCSI bus parity
1:1 interleave
High performance (H12 & H11) and low power (L12 & L11) models   available
(0,4/4) 8/9 rate encoding
Media data transfer rate:  3 MB/S
SCSI data transfer rate:  up to 10 MB/S (synchronous)
256K byte dual-ported data buffer
Read-ahead caching
Multi-segmented data buffer
Scatter/Gather function support
Tagged and Untagged command queuing (selectable)
Automatic sector reallocation (selectable)
Error logging
Variable logical block lengths (256-6000 bytes with exceptions)
Down-loadable SCSI firmware
Automatic retry and data correction in read errors
In-line alternative sector assignment for high performance
Sector reassignment without reformat
Predictive Failure Analysis

 PERFORMANCE 

Data transfer rate

   Buffer to/                    3 MB/S (instantaneous)
   from media
   Host to buffer             up to 5 MB/S (synchronous)
   Host from buffer        up to 5 MB/S (synchronous)
Rotational Speed            4316 RPM
Average latency             6.95 mS
Seek time                        Read           Write
   Single cylinder            0.6 mS         2.5 mS
   (all models)

Содержание 0663 Series

Страница 1: ...d caching Multi segmented data buffer Scatter Gather function support Tagged and Untagged command queuing selectable Automatic sector reallocation selectable Error logging Variable logical block lengths 256 6000 bytes with exceptions Down loadable SCSI firmware Automatic retry and data correction in read errors In line alternative sector assignment for high performance Sector reassignment without ...

Страница 2: ... the SCSI device ID to control the spindle motor start and to select the appropriate option pin B1 function There are four ground pins A1 A2 A3 B2 If pin B1 is jumpered to ground drive initiated synchronous negotiation is disabled but requests from the initiator will still be accepted Option block ground pins must only be used for selecting jumper block functions SCSI Pin 1 Power Pin 1 Options Jum...

Страница 3: ...lterable via the SCSI Mode Select command This allows certain drive characteristics to be modified to optimize performance on a particular system Refer to the 0663 Disk Drive SCSI Specification for detailed definition of Mode Select parameters Changeable parameters are Block Descriptor Number of Blocks Block length Page 0 QPE Qualify Post Error UQE Untagged Queueing Enable DWD Disable Write Discon...

Страница 4: ...04 559 360 1 962 030 520 65 1 004 257 800 1 931 265 524 64 995 862 000 1 900 500 1024 66 1 004 559 360 981 015 2048 66 1 004 558 336 490 507 4096 66 1 004 556 288 245 253 6000 47 1 033 116 000 172 186 Model H11 L11 bytes gross formatted logical logical sectors capacity blocks block track bytes file 256 111 741 180 160 2 895 235 512 66 868 044 800 1 695 400 520 65 867 743 240 1 668 737 524 64 860 4...

Страница 5: ...data surfaces These have additional spare sectors since the likelihood of defective sectors is higher in this region This feature does not affect the instantaneous media data rate which is constant across all cylinders OPERATING ENVIRONMENT The drive operates within its performance limits when the following environment is maintained Product life calculations are based on the nominal environment fo...

Страница 6: ...ack page for location of measurement points COOLING This drive does require airflow in order to fulfill its reliability performance Please refer to Environmental section of the 0663 Disk Drive product specification for full details of the maximum allowable temperatures and measurement points Integration into using System The drive s mounting frame is electrically isolated from the drive s disk enc...

Страница 7: ...ME TNT 6000 Note The option pin jumper on the drive must be grounded when attaching to TMCXXX M cards EISA Bus Adapters ADAPTEC AHA 1740 DATA TECHNOLOGY CORP DTC3290 The Adaptec AHA1542B SCSI controller is not compatible with the 0663 drives Adaptec provides an upgrade kit comprising new BIOS and Microcode PROMS to allow conversion of existing AHA1542B cards to the AHA1542BS6 version KNOWN INTEGRA...

Страница 8: ...e of known drives contained in the usr sys data scsi data c system file as follows Change first line from UNKNOWN DISK TO IBM OEM Following this change the operating system kernel must be rebuilt recompiled Platform SUNSpareStation Operating System s Sunos V4 1 2 Sunos V4 1 3 Configuration Required The drive will attach with no changes but should the drive enter degraded mode due for instance to a...

Страница 9: ...nce this feature is not supported by the drive and would result in SCSI Write errors occurring PLEASE NOTE THAT TURNING BLIND WRITE OFF WILL RESULT IN DEGRADED SYSTEM PERFORMANCE WRITE OPERATIONS TROUBLE SHOOTING The drive reports status in response to the SCSI Sense command and this is a powerful troubleshooting tool on any drive whose failure mode still allows it to communicate If the drive is i...

Страница 10: ...55F9819 Current users of the 8 disk drive should evaluate 7 disk version to ensure compatibility with their application s before receiving quantity shipments New integrators should evaluate the 7 disk version NB This drive is not suitable for attachment to Apple systems as it does not support the Blind Write and Unit Attention Disable features used by the majority of these systems DC POWER REQUIRE...

Страница 11: ...I bus Power The DC power connector is designed to mate with a MOLEX AMP PN 1 480424 0 connector or equivalent Pin assignments are shown in Figure 2 Figure 2 Power Connector Pin Assignments SCSI Signal Connector The SCSI signal connector is a 50 pin connector Molex PN 70246 or equivalent meeting ANSI SCSI specifications SCSI Bus Terminators The drive has no internal SCSI bus terminators The user is...

Страница 12: ...s European Economic Community EEC directive 76 889 related to the control of radio frequency interference and the Verband Deutscher Elektrotechniker VDE requirements of Germany COP START AND STOP TIMES Time Nominal Maximum Power Up 2 0 sec 2 4 sec Start Unit 19 5 sec 1 min Stop 9 sec 12 5 sec During the start sequence diagnostics are performed and are divided into two sections Power up pre motor s...

Страница 13: ...ssist cooling it is recommended that a clearance of 6 mm be provided above and below the drive Precautions must be taken to avoid blocking any of the vent holes on the side and ends of the drive Mounting The drive can be mounted with any surface facing down except the front surface opposite end to power and SCSI connectors See diagram below for location of mounting holes The torque applied to the ...

Страница 14: ...to exceed the casting and module temperature limits EXTERNALLY GENERATED RIPPLE as seen at file power connector Voltage Maximum Notes ___________________________________________ 5 VDC 100mV peak to peak 0 10 MHz 12 VDC 150mC peak to peak 0 10 MHz During file start up and seeking 12 volt ripple is generated by the file referred to as dynamic loading If several files have their power daisy chained t...

Страница 15: ...rom increasing to the point of damage to the file If the SCSI bus is connected while it has power active on any of its lines then a power or signal glitch may occur on the bus If any other devices are sharing the bus than this glitch may cause them to produce an error VIBRATION AND SHOCK Operating Nonoperating Vibration Due to the complexity of this subject we recommend that users contact the Dist...

Страница 16: ...corporated Molex is a trademark of Molex Incorporated DATA MATE is a trademark of AMP Incorporated Western Digital is a trademark of the Western Digital Corporation NEXT is a trademark of NEXT Corporation This data sheet is not a substitute for the fall product specification which should be used when detailed information is required Product Description data represents IBM s design objectives and i...

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