Western Digital  (250-0105/6)   Installing Other       Faxback Doc. # 15668
Hard Disk Upgrade Kits       Operating System Software

This section provides hard drive installation information for Novell
Netware, Unix, Windows NT and OS/2.  Ontrack Disk Manager cannot be used
with these operating systems.

Novel Netware and Unix Installations

Novell Netware and Unix operating systems use non-translating drive
parameters.

CMOS SETUP

You must install the Western Digital hard drive using "User Defined" CMOS
parameters.  Use the cylinders, heads, and sectors as shown in the
following table.  Do not install the drive using "Auto Config" CMOS
parameters.  Do not enter more than 1024 cylinders for any drive with a
capacity over 528 MB.

┌──────────────────┬────────┬─────────┐
│ DRIVE            │ AC2850 │ AC31200 │
├──────────────────┼────────┼─────────┤
│ Cylinders        │ 1024   │ 1024    │
├──────────────────┼────────┼─────────┤
│ Heads            │ 16     │ 16      │
├──────────────────┼────────┼─────────┤
│ Sectors/Track    │ 63     │ 63      │
├──────────────────┼────────┼─────────┤
│ Landing Zone and │ 1654   │ 2484    │
│ Precomp          │        │         │
├──────────────────┼────────┼─────────┤
│ CMOS Capacity    │ 504    │ 504     │
│ (MB)             │        │         │
├──────────────────┼────────┼─────────┤
│ Actual Capacity  │ 853.6  │ 1281.9  │
│ (MB)             │        │         │
└──────────────────┴────────┴─────────┘

NOTE:  Western Digital defines a megabyte as 1,000,000 bytes.  CMOS setup
       and some utility software programs define a megabyte as 1,048,576
       bytes.

Software Setup

When Novell operating system loads, it automatically recognizes the full
capacity of the drive.  For Unix installations, select the fully
configurable option and enter the actual cylinder, head and sector
parameters shown below.

┌──────────────────┬────────┬─────────┐
│ DRIVE            │ AC2850 │ AC31200 │
├──────────────────┼────────┼─────────┤
│ Cylinders        │ 1654   │ 1654    │
├──────────────────┼────────┼─────────┤
│ Heads            │ 16     │ 16      │
├──────────────────┼────────┼─────────┤
│ Sectors/Track    │ 63     │ 63      │
├──────────────────┼────────┼─────────┤
│ *Landing Zone    │ 1654   │ 2484    │
│  and Precomp     │        │         │
├──────────────────┼────────┼─────────┤
│ CMOS Capacity    │ 814    │ 1223    │
│ (MB)             │        │         │
├──────────────────┼────────┼─────────┤
│ CHKDSK (MB)      │ 853.6  │ 1281.9  │
└──────────────────┴────────┴─────────┘

NOVELL NETWARE VERSION 2.15

Special compsurf procedures:  During the "Analyze Disk Surface" step, enter
the following program operation parameters.

    - Format Disk                      No
    - Maintain Media Defect List       No
    - Enter Media Defects              No
    - Number of Sequential Passes      0
    - Number of I/O's in Random Test   0

ALL OTHER NETWARE VERSIONS - Refer to your Novell installation procedures.

Windows NT and OS/2 Installations

These advanced operating systems support IDE hard drives greater than 528
MB when your system CMOS parameters are set properly.  They may, however,
restrict the size of the boot partition or less than 528 MB.

Windows NT and OS/2 support hard drives larger than 528 MB with added
installation steps.  Proceed as indicated below.

For Systems With A Translating BIOS

If your system supports a translating BIOS, in system setup, select the
Hard Disk Type option "Auto Config."  The boot partition will use the full
capacity of your hard drive.

For Systems Without a Translating BIOS

If your system DOES NOT support a translating BIOS, in system setup, select
the Hard Disk Type option "User Defined."  Enter these parameters: 
cylinders = 1024, heads = 16, sectors = 63.

For Windows NT, follow the procedures supplied with the Windows NT manual.

For OS/2 installations, for systems without a translating BIOS, you must
partition manually.  Follow these additional steps for OS/2 installations
only:

1.  During the installation process, you are asked to accept or define the
    bootable partition.  Choose Define Partition.  This will run the FDISK
    utility.

2.  Define the primary partition to be less than 503 CMOS MB to prevent an
    installation failure.  The capacity of the hard drive that exceeds 504
    MB must be accessed as a separate partition.  Set the remaining disk
    space to an extended partition.  Normally the remaining free space is
    set to an extended partition or other configuration as desired.

3.  Set the primary partition to INSTALLABLE or BOOTABLE.

4.  Exit the FDISK utility and follow the prompt to replace the floppy disk
    drive A.  Reboot the system.

5.  The installation should now continue normally.


(ALL-06/14/95)