The Format Command; Novell Netware Configuration Information - Compaq PORTABLE 386 Maintenance And Service Manual

If the fixed disk drive expansion unit is configured at the primary address,
that fixed disk drive must contain a primary DOS partition.
partition is created with the menu driven FDISK utility which contains an
extended partition.
not exceed 24.

The FORMAT Command

After using the FDISK to partition the fixed disk drive, use the FORMAT
command on the EXTDISK diskette to format each logical drive on the fixed disk
drive. For information on using the FORMAT command, refer to your MS-DOS
Reference Guide.

Novell Netware Configuration Information

A key feature of the fixed disk drive expansion unit is disk driver software
that supports Novell System Fault Tolerant (SFT) NetWare operation (SFT I and
SFT II). SFT LAN operation helps ensure data integrity by duplicating data
files on a second fixed disk drive and by performing a write verification.
Three disk configurations that achieve fault tolerant operation are SFT I, SFT
II (disk mirroring), and SFT II (disk duplexing).
o SFT I (write verification with "Hot Fix") confirms each write and
automatically corrects erroneous writes by relocating data to another
portion of the fixed disk drive.
o SFT II (disk mirroring) helps ensure uninterrupted system operation without
data loss if a fixed disk drive fails.
fixed disk drive controller and two identical fixed disk drives.
Novell ATDISK driver supports SFT II (disk mirroring) for a single disk
controller system.
(disk mirroring) for a single or dual disk controller system.
o SFT II (disk duplexing) goes beyond disk mirroring in both fault tolerance
and performance.
fixed disk drive or a controller fails.
simultaneously servicing two disk write or read requests and by selecting
the fixed disk drive that is best able to service a given read request.
Duplexed drives typically perform write and read operations twice as
quickly as mirrored drives.
controllers and two identical fixed disk drives.
The EXTDISK diskette contains two versions of the Value Added Disk Driver
(VADD) for Novell NetWare:
servers running Novell NetWare (V2.1x).
that CPQDSK performs a write verification and NVCPQDSK does not.
NVCPQDSK executes fixed disk drive write operations over two times faster
than CPQDSK because it does not perform read after write verification.
probability of unrecoverable disk write errors with mirrored or duplexed
drives is very low, since erroneous data on one fixed disk drive can usually
be recovered from the second.
or duplexing depend on the inherent reliability of the fixed disk drive and
tape drives as the only protection against disk errors.
mirrored or duplexed fixed disk drive configurations that require maximum
performance.
NOTE: Execution of the NetWare UNMIRROR console command terminates the use of
The total number or logical drives on your system may
The COMPAQ CPQDSK and NVCPQDSK drivers support SFT II
It helps ensure continuous system operation if either a
Disk duplexing requires two fixed disk drive
CPQDSK and NVCPQDSK.
Disk configurations that do not use mirroring
Disk mirroring requires a single
It improves performance by
Both versions operate in all
The two versions are identical except
Use NVCPQDSK with
The primary
The
The