IBM 0663 Series Manuale utente
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)
Average (L11, L12) 10.6 mS 12.6 mS
(weighted) (H11, H12) 9.4 mS 11.4 mS
Full stroke (L11, L12) 20.0 mS 22.0 mS
(H11, H12) 18.5 mS 20.5 mS
ELECTRICAL CONNECTOR LOCATIONS
Electrical Connectors (view from back of Disk Drive)
JUMPER SETTINGS
The jumper block shown above is used to select 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 Jumper Block
Bit
0 1 2
= 0
= 1
= 2
= 3
= 6
= 7
= 4
= 5
Address
C1 C2 C3 D2
A1 A2 A3 B1 B2
Figure 1 Option Block
With the auto start jumper in place the motor spins up when power is applied. With the auto start
jumper removed the motor spins up when the drive is issued a Start Unit command.
Note:
During the power up sequence the option pin is interrogated. If it is grounded the pin remains an
input. If it is not grounded it becomes an output, indicating Motor Active or Command Active
depending on the state of the CMDAC bit in Mode page 0.
As an input the option pin has several effects upon the SCSI function. Please refer to the 0661
SCSI Specification for details.
MODE SELECT OPTIONS
Certain 'Mode Select' parameters are alterable 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 Disconnect)
ASDPE (Additional Save Data Pointer Enable)
CMDAC
RPFAE (Report Predictive Failure Analysis Error)
CPE (Concurrent Processing Enable)
Page 1
AWRE (Automatic Write Reallocation Enable)
ARRE (Automatic Read Reallocation Enable)
TB (Transfer Block)
RC (Read Continuous)
PER (Post Error)
DTE (Disable Transfer on Error)
DCR (Disable Correction)
Read Retry Count
Page 2
Read Buffer Full Ratio
Write Buffer Empty Ratio
Maximum Burst Size
Page 7
PER
DCR
Page 8
MF (Multiplication Factor)
RCD (Read Cache Disable)
Demand Read Retention Priority
Write Retention Priority
Disable Pre-fetch Transfer Length
Maximum Pre-fetch
Maximum Pre-fetch Ceiling
Number of Cache Segments
Page A
QErr (Queue Error Management)
DQue (Disable Queuing)
DATA ORGANIZATION
Capacity
Model H12 & L12
bytes/ gross formatted logical
logical sectors/ capacity blocks/
block track (bytes) file
256 111 856,692,480 3,346,455
512 66 1,004,559,360 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 64 860,446,776 1,642,074
1021 66 868,044,800 847,700
2048 66 868,044,800 423,850
4096 66 868,044,800 211,925
6000 47 891,600,000 148,600
S/N Suffix
Cylinders Ck & CL CD & CB
Total cylinders 2057 2469
User cylinders 2051 2463
Disks 8 7
Tracks/cylinder
H12 & L12 15 13
H11 & L11 13 11
User bytes/sector 256 - 750
User bytes/logical block 256 - 6000
with exceptions
(increments in bytes) = 1 256 - 750
= 2 752 - 1500
= 4 1504 - 3000
= 8 3008 - 6000
Band 1 user cylinders 1366 1641
spares/cylinder
H12 & L12 30 27
H11 & L11 28 26
Band 2 user cylinders 685 822
spares/cylinder
H12 & L12 40 36
H11 & L11 28 26
Last cylinder extra spares
H12 & L12 80 72
H11 & L11 80 68
Note:
Banding as defined here refers to the number of spare sectors provided per cylinder to reallocate
defective sectors. Band 2 cylinders are those nearer the inside diameter of the 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 for a typical application.
Humidity:
Operating 8% to 90% noncondensing
Storage 5% to 95% noncondensing
Shipping 5% to 100% (applies at a packaged level)
Wet Bulb Temperature:
Operating 80 degrees F (26.7 degrees C) maximum
Shipping/Storage 85 degrees F (29.4 degrees C) maximum
Elevation:
Operating -1000 to 10,000 feet
(-304 to 3,048 meters)
Shipping/Storage -1000 to 40,000 feet
(-304 to 12,192 meters)
Temperature:
Operating ambient 41 to 131 degrees F (5 to 55 degrees C)
Operating casting 41 to 131 degrees F (5 to 60 degrees C)
temperature
Operating casting Not to exceed 3.6 degrees F (2 degrees C)
temperature delta (see note below)
Shipping -40 to 149 degrees F (-40 to 65 degrees C)
Storage 34 to 149 degrees F (1.1 to 65 degree C)
Temperature Gradient
Operating 18 degrees F (10 degrees C) per hour
Shipping/Storage below condensation
These temperature limits are extremely important and must not be exceeded at the worst case
drive and system operating conditions with the drive randomly seeking, reading, and writing.
Note:
Measured between top and bottom of disk enclosure. See Figure 3 on back 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 enclosure.
NOTE: THE DISK ENCLOSURE IS NOT AT GROUND POTENTIAL.
Any user mounting scheme must not result in the disk enclosure being shorted to ground. Drive
malfunction will result if this occurs.
COMPATIBILITY
Testing should be carried out to ensure that the drive is fully compatible with the using
system.
System BIOS, Operating system, Device drivers and interface card BIOS/ characteristics can
effect the ability to attach the drive to the system. All need to be verified jointly as compatible
with the drive.
The drive should be verified in the mode it will be attached to the system.
It cannot be assumed that a drive which attaches as an additional SCSI device on a system
providing only additional data storage will have no problems when attached as the only/boot
drive.
SCSI ADAPTERS
The following SCSI Adapters have been operated with the 0663 drives on Typical ISA and
E15A platforms under MS-DOS and worked in these environments with no observed
problems.
ISA Bus Adapters
ADAPTEC AHA 1542BS6
INFOSYS C5630B
WESTERN DIGITAL WD7000-ASC
DATA TECHNOLOGY CORP DTC3180
DATA TECHNOLOGY CORP DTC3280A
DATA TECHNOLOGY CORP DTC3150
FUTURE DOMAIN TMC 850M
FUTURE DOMAIN TMC 860M
FUTURE DOMAIN TMC 885M
TENTIME 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 INTEGRATION SOLUTIONS
The drive initiates negotiation for synchronous data transfer rate during the initialization
sequence. This may cause problems which prevent attachment to some systems/SCSI
controller cards. Jumpering the option pin to ground on the jumper block prevents the drive
from sending the synchronous negotiation message. However, other changes are also made
to the drive's behavior ref error reporting and sense information returned. These are detailed
in the Disk Drive SCSI specification.
Platform(s) DECDECStation 3100
DECVAXStation 3100
DECMicroVax 3100
Operating System(s) VMS V5.4.2
VMS V5.5
VMS V5.6
Note: Attachment to earlier versions of the VMS operating systems is not possible.
Configuration Required:
Alter MODE SELECT Page 1, Byte 2 to '04'
Alter MODE SELECT Page 7, Byte 2 to '04'
Platform(s) DECDECStation 3100
DECVAXStation 3100
DECMicroVax 3100
Operating System(s) Ultrix V4.1
Ultrix V4.2
Configuration Required:
Connect 'OPTION PIN' on drive jumper block to ground.
Platform DECStation 5000
Operating System(s) Ultrix V4.1
Ultrix V4.2
Configuration Required:
No modifications to the drive are required. However it is necessary to modify the list of device
types on the table 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 an interrupted format, it will be necessary to ground the option pin on the drive jumper block
before the drive can be reformatted on the system.
Device Parameter Settings Declared to System:
The system will accept a wide range of settings provided these do not result in the total number
of data sectors declared (Data Cylinders x Heads x Sectors per track) exceeding the number
available on the drive.
Platform(s) NEXTStation, NEXTCube
Operating System(s) Proprietary (supplied with platform)
Configuration Required:
Alter MODE SELECT Page 0, Byte 2 to '40'
Alter MODE SELECT Page 0, Byte 3 to '80'
Platform HEWLETT PACKARD
HP9000-710
Operating System(s) Proprietary (Supplied with platform)
Configuration Required:
Connect 'OPTION PIN' on drive jumper block to ground.
Platform APPLESYSTEMS
Operating System(s) Proprietary (supplied with platform)
Configuration Required:
No modification to the drive are required. However, attachment to many APPLE systems is not
possible using the device drivers supplied.
There are third-party device drivers which allow attachment including 'SPOT ON' from MacPeak
Research.
These overcome the incompatibility associated with the drive returning the 'UNIT ATTENTION'
condition in response to the first SCSI command following power-up or a SCSI bus RESET.
They also allow the APPLE 'Blind Write' feature to be turned off, which is necessary since 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 interrupted by powering down during a format operation it will enter degraded
mode. In this mode it will return a 'Unit Attention' condition to most SCSI commands.
Issuing a 'Sense' Command immediately after issuing a 'Test Unit Ready' Command will return
sense data which indicates that the drive is in degraded mode.
The way to recover the drive is to issue the SCSI 'Format' command and allow the drive to format
to completion.
PRODUCT VARIATIONS
Model Comments
PN 0663 L12 8 disk version of L12 (1 GB) drive with low power
55F5208 (11 msec) actuator. Preferred where low power
dissipation is of more importance than high seek
performance. Production of this drive has been
phased out in favor of the functionally equivalent
7 disk version PN 55F9813. Current users of the
8 disk drive should evaluate the 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.
PN 0663 H12 8 disk version of H12 (1 GB) drive with fast (9.8 mSec)
actuator. Preferred where high seek performance is of
more importance than low power dissipation. Production
of this drive has been phased out in favor of the
functionally equivalent 7 disk version PN 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 REQUIREMENT LIMITS
The following voltage specifications apply at the file voltage connector, there are no special
power on/off sequencing requirements.
+12 Volt Supply
+/- 5.0% (during run)
-7.0% +5.0% (during start)
+5 Volt Supply
+/- 5.0%
Power supply current (Amps) - Population mean
+5 Volt +12 Volt
Idle average 1.07 0.49
Seek peak (H11, H12) -- 1.84 (see note 1)
(L11, L12) -- 0.78 Spin-up
(H11, H12) -- 3.75 (see note 2)
(L11, L12) -- 3.59
Commutation -- 0.35
Note 1: The idle average, communication and seek peak should be added together to determine
the total 12 volt peak current.
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