User's Manual

l Rebuild
l Virtual disk format
l I/O
If you receive an alerts 2146 through 2150 as the result of doing a rebuild or while the virtual disk is in a degraded state, then data cannot be recovered from
the damaged disk without restoring from backup. If you receive alerts 2146 through 2150 under circumstances other than a rebuild, then data recovery may
be possible. The following describes each of these situations.
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Alerts 2146 through 2150 Received during a Rebuild or while a Virtual Disk is Degraded
Do the following if you receive alerts 2146 through 2150 during a rebuild or while the virtual disk is in a degraded state:
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1. Replace the damaged physical disk.
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2. Create a new virtual disk and allow the virtual disk to completely resynchronize. While the resynchronization is in progress, the status of the virtual disk
will be Resynching.
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3. Restore data to the virtual disk from backup.
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Alerts 2146 through 2150 Received while Performing I/O, Consistency Check, Format, or Other Operation
If you receive alerts 2146 through 2150 while performing an operation other than a rebuild, you should replace the damaged disk immediately to avoid data
loss.
Do the following:
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1. Back up the degraded virtual disk to a fresh (unused) tape.
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2. Replace the damaged disk.
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3. Do a rebuild.
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Read and Write Operations Experience Problems
If the system is hanging, timing out, or experiencing other problems with read and write operations, then there may be a problem with the controller cables or
a device. For more information, see "Cables Attached Correctly" and "Isolate Hardware Problems."
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I/O Stops When a Redundant Channel Fails
If you have implemented channel redundancy on a PERC 3/SC, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, or 4/Di controller, a failure of one channel causes I/O to stop on
the other channels included in the channel-redundant configuration. For the resolution to this problem, see "Channel Redundancy on PERC 3/DC, 3/QC, 4/DC,
4e/DC, 4/Di, and 4e/Di Controllers."
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A Task Menu Option is Not Displayed
You may notice that the task menus do not always display the same task options. This is because Storage Management only displays those tasks that are
valid at the time the menu is displayed. Some tasks are only valid for certain types of objects or at certain times. For example, a Check Consistency task can
only be performed on a redundant virtual disk. Similarly, if a disk is already offline, the Offline task option is not displayed.
There may be other reasons why a task cannot be run at a certain time. For example, there may already be a task running on the object that must complete
before additional tasks can be run.
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A Corrupt Disk or Drive Message Suggests Running autocheck During a Reboot
Let autocheck run, but do not worry about the message. The reboot will complete after autocheck is finished. Depending on the size of your system, this may
take about ten minutes.
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Erroneous Status and Error Messages after a Windows Hibernation
Activating the Windows hibernation feature may cause Storage Management to display erroneous status information and error messages. This problem
resolves itself when the Windows operating system recovers from hibernation.
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