Browse Prior Art Database

Fast and Easy Creation of OS/2 HPFS386 Mirrored Drives

IP.com Disclosure Number: IPCOM000105724D
Original Publication Date: 1993-Sep-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

McHam, JN: AUTHOR [+2]

Abstract

Disclosed is a program that greatly improves usability and performance for creating mirrored drives. This software, part of the IBM OS/2* Advanced LAN Server (LS) 3.0 package, running on OS/2 2.0, creates High Performance File System 386 (HPFS386) mirrored drives in a one-step process. One can quickly set up a mirrored drive to assure disk data integrity with the easy-to-use disk Fault Tolerance utilities.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 86% of the total text.

Fast and Easy Creation of OS/2 HPFS386 Mirrored Drives

      Disclosed is a program that greatly improves usability and
performance for creating mirrored drives.  This software, part of the
IBM OS/2* Advanced LAN Server (LS) 3.0 package, running on OS/2 2.0,
creates High Performance File System 386 (HPFS386) mirrored drives in
a one-step process.  One can quickly set up a mirrored drive to
assure disk data integrity with the easy-to-use disk Fault Tolerance
utilities.

      The original disk Fault Tolerance utilities provided in LS 2.0
certainly allowed mirroring of drives, but the procedure to create
the mirrors was cumbersome.  One had a drive which contained valuable
data, it was required to do the following:

  a) Back up all of the data contained on the drive
  b) Run Fault Tolerance utilities to mirror the drive.  This would
     automatically re-format the drive.
  c) IPL the computer
  d) Allow the Fault Tolerance utilities to complete the mirror
     creation, again re-formatting the drive.
  e) Restore the data back to the drive.

      The algorithm to create mirrored drives was greatly modified
for LS 3.0.  The new fundamental idea is to do a direct copy of data
from the original partition to the mirror partition, without doing
any formatting of the drive.  Now, only two steps are needed to
mirror a drive:

  a) Run Fault Tolerance utilities to mirror the drive.
  b) IPL the computer

This solution saves hours of time.

      T...