Downing A Disk; Switching Array Controllers - HP Surestore Disk Array 12h - And FC60 System Administrator Manual

4. Click on the disk you want to test.
5. Click Test.
6. Select Read Verify or Write Read.
7. Enter the percent of the disk media you want to test.
8. If you are performing a Write/Read test, you must first Down the disk. The diagnostic test will begin
and a progress indicator will be displayed in the Test Status box. When the test concludes, the results
will be displayed.
To continue using a disk following a Write/Read test, it must be manually included back in the array
configuration. See "Including a Disk

Downing a Disk

If you must remove a disk from the array for testing or replacement, the disk should be downed before
removing it from the array enclosure. In some situations, downing a disk may cause a loss of data
redundancy or even a loss of user data. You must decide if you are willing to accept either of these
conditions before downing the disk. In addition, if Auto Rebuild is enabled, the disk array will begin
rebuilding the data on the downed disk immediately. If you do not want this to happen, you must disable
Auto Rebuild before downing the disk. See
Rebuild.
To down a disk:
1. Right-click the disk array from the Detail pane.
2. Click Properties.
3. Click the Diagnostics tab.
4. Click on the disk you want to down.
5. Click Down.
6. From the Down Physical Disk Warning dialog, select the desired option restricting the conditions under
which the down can occur.
To return a downed disk to the array configuration, you must manually include it. See
Manually " for more information.

Switching Array Controllers

In disk arrays with two controllers, the array automatically switches to the secondary controller if the
primary controller fails. However, you can manually switch controllers if necessary.
Using AutoRAID Manager for Windows NT
Manually" for more information.
"Rebuilding the Disk
Performing Disk Array Maintenance Tasks
Array" for information on disabling Auto
"Including a Disk
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