Installation guide

Manual No. 771961 6-1
Chapter 6
Maintenance Processes
Introduction
Maintenance processes include the following activities which you may need
to perform from time to time on arrays that use redundancy and/or fault
tolerance, or to maintain the most up-to-date firmware maintenance releases:
• Running a consistency check on a logical drive to examine (and
optionally restore) consistency (parity). Encountered errors may be
written to the Error Table.
• Running a data rebuild on a physical drive that replaces a drive that
went dead or offline
• Upgrading Mylex PCI and External RAID Disk Array Controller
firmware, BIOS, boot block, or BIOS Configuration Utility
• Performing a safe controller shutdown (External Controllers only)
Running a Logical Drive Consistency Check
From time to time it is prudent to run a consistency check on each of your
fault tolerant logical drives. This check scans the logical drive to determine
whether consistency data has become corrupted and needs to be restored. If
you have reason to believe that logical drive consistency data is corrupted, or
if you wish to run a consistency check for maintenance reasons, perform the
following procedure:
1. Double-click a logical drive in Controller View (right side of a
Controller View window).
2. Click the Consistency Check button in the Logical Drive Information
dialog box to begin.
A message is displayed asking if you would like consistency to be restored in
the event of errors (Figure 6-1):