Other problems
A disk has failed.
The graphical user interface (GUI) says that a disk has failed, but my data is still accessible. What should I
do?
►
If a disk has failed:
1. Contact your Nexsan dealer or Nexsan Technical Support (see
on page 234) to
arrange for a replacement disk drive to be shipped as quickly as possible.
2. DO NOT REMOVE THE FAILED DISK DRIVE until the new disk drive has arrived and is ready to be
installed. Removing a disk drive changes air flow and cooling and can result in the system overheating.
3. Once the new disk drive has arrived, follow the instructions in the unit’s
FRU Removal and Replacement
Guide
to replace the failed disk drive. The new disk drive will either be rebuilt into the array (if the array is
in a critical state) or it will be assigned as a pool spare (see
Note
Do NOT re-install a failed disk into any Nexsan High-Density Storage unit, even if examination reveals
no fault.
A power supply unit (PSU) has failed, but my storage system is still functioning.
What should I do?
►
If a PSU has failed:
1. Contact your Nexsan dealer or Nexsan Technical Support (see
on page 234) to
arrange for a replacement power supply unit to be shipped as quickly as possible.
2. DO NOT REMOVE THE FAILED PSU until the new PSU has arrived and is ready to be installed.
Removing a PSU reduces air flow and cooling and can result in the system overheating.
3. Once the new PSU has arrived, follow the instructions in the unit’s
FRU Removal and Replacement
Guide
to replace the failed PSU with the new one.
A RAID Controller has failed. What should I do?
If a RAID Controller fails, you may not have access to your data. However, the data is still safe on the disks
and will be available as soon as a new RAID Controller has been installed.
►
If a RAID Controller has failed:
1. Contact Nexsan Technical Support (see
on page 234) to determine the reason for
the RAID Controller failure. In many cases, the RAID Controller can be recovered and continue to work
properly.
2. If the RAID Controller cannot be recovered:
a. Contact your Nexsan dealer or Nexsan Technical Support to arrange for a replacement RAID
Controller to be shipped as soon as possible.
b. DO NOT REMOVE THE FAILED RAID CONTROLLER until the new controller has arrived and is
ready to be installed. Removing a RAID Controller reduces air flow and cooling and can result in the
system overheating.
c. Once the new RAID Controller has arrived, follow the instructions in the unit’s
FRU Removal and
Replacement Guide
to replace the failed RAID Controller with the new one.
Chapter 4: Troubleshooting — Other problems
Nexsan High-Density Storage
User Guide
242