Owner's manual

◦ Failed—The on-line spare has failed and is no longer available for use.
◦ Inactive—The monitored system has an on-line spare configured, but is not currently in
use.
◦ Unknown—You may need to upgrade your software.
When the status is Building, one of the following displays, which indicates the progress of the
Automatic Data Recovery:
• Percent Rebuild Complete—Displays the percent complete of the rebuild. When the value
reaches 100, the rebuilding process is complete. The drive array continues to operate in
interim recovery mode during the rebuild.
• Rebuild Blocks Left—Displays the number of blocks of data that still need to be redistributed.
When the value reaches 0, the rebuilding process is complete. The array continues to operate
interim recovery mode during the rebuild.
• Replaced Drives—Identifies the failed physical drives in the logical drive that the spare drive
has replaced. Use this monitored item to identify the failed drives and replace those drives as
soon as possible.
If N/A displays, the spare has not begun operating in place of the failed drive.
Predictive Indicators
Use the Predictive Indicators to predict when a drive, which is now operating normally, may need
to be replaced.
• S.M.A.R.T. Status—Displays the S.M.A.R.T. status as reported by the physical drive. This is
only displayed if the drive supports S.M.A.R.T. predictive failure. The possible values are:
◦ Other—The Storage Agent is unable to determine the status of S.M.A.R.T. predictive
failure monitoring for this drive.
◦ OK—Indicates the drive is functioning properly.
◦ Replace Drive—Indicates that the drive has a S.M.A.R.T. predictive failure error and
should be replaced.
The predictive indicators listed below are not displayed if the physical drive does not support
any of the indicators and S.M.A.R.T. status is available.
The numerical data associated with these items displays after the item name. For example,
Used Realloc: 122 means that there are 122 used reallocation sectors for this drive. The status
of these items can be OK or Replace Drive. If the status is Replace Drive, replace the drive,
or an actual drive failure may occur in the future. The Predictive Indicators are:
Functional Test 1, 2, and 3 provides information about a series of tests that indicates how well
a physical drive works. The status of these items can be OK or Replace Drive. If the status is
Replace Drive, replace the drive, or an actual drive failure may occur in the future.
These tests compare the way the physical drive currently operates when performing various
tasks with the way it worked when it was new.
• Used Realloc—Displays the number of sectors of the reallocation area that have been used
by the physical drive. The status of this item can be OK or Replace Drive. If the status is Replace
Drive, replace the drive, or an actual drive failure may occur in the future.
Because of the nature of magnetic disks, certain sectors on a drive may have media defects.
The reallocation area is part of the drive that the drive manufacturer sets aside to compensate
for these defects. The array controller writes information addressed from the unusable sectors
46 Agent information