Physical disk failures and rebuilds – Dell PowerEdge RAID Controller 6i User Manual

Page 121

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Troubleshooting

121

Physical Disk Failures and Rebuilds

Table 7-5 describes issues related to physical disk failures and rebuilds.

Table 7-5.

Physical Disk Failure and Rebuild Issues

Issue

Suggested Solution

Rebuilding the
physical disks after
multiple disks become
simultaneously
inaccessible.

Multiple physical disk errors in a single array typically
indicate a failure in cabling or connection and could involve
the loss of data. It is possible to recover the virtual disk after
multiple physical disks become simultaneously inaccessible.
Perform the following steps to recover the virtual disk.

1

Turn off the system, check cable connections, and reseat
physical disks.

2

Follow the safety precautions to prevent electrostatic
discharge.

3

Ensure that all the drives are present in the enclosure.

4

Turn on the system and enter into the CTRL+R utility and
import the foreign configuration. Press 'F' at the prompt to
import the configuration, or press <C> to enter the BIOS
configuration utility and either import or clear the foreign
configuration.

If the VD is redundant and transitioned into DEGRADED
state before going OFFLINE, a rebuild operation starts
automatically after the configuration is imported. If the VD
has gone directly into the OFFLINE state due to a cable
pull or power loss situation the VD is imported in its
OPTIMAL state without a rebuild occurring.

You can use the BIOS Configuration Utility or Dell
OpenManage Storage Management application to perform a
manual rebuild of multiple physical disks.

See the section "Performing a Manual Rebuild of an
Individual Physical Disk" on page 107 for procedur
es to
rebuild a single physical disk.

Dell_PERC6.1_UG.book Page 121 Wednesday, April 15, 2009 4:18 PM

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