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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