Replacing Disk Drives - Overland Storage SnapServer Administrator's Manual

SnapServer GuardianOS 7.2 Administrator's Guide
• Click a disk icon ( ) to view disk details.
• Click a unit's LED icon (
identification. The LEDs flash amber. Click the LED stop icon (
NOTE: The LEDs will continue to flash for five minutes unless stopped. To stop flashing LEDs
• Hover the mouse over a RAID set name of one of the drives to display the RAID level
next to all the disks within the RAID set (Traditional RAID only).
• Click a RAID set name to view or edit the RAID set (Traditional RAID only).
Expansion arrays, if attached to your server, will also be displayed on this page.
• If GuardianOS detects an expansion unit that is not integrated with the SnapServer, a
message displays across the top of the Disks page with a link to information about the
orphaned expansion unit. Also, the orphaned expansion unit will be highlighted on the
page.

Replacing Disk Drives

Should a disk drive fail (solid red LED), usually it can be replaced without shutting down the
SnapServer appliance (hot-swapped).
A failed disk drive can be removed and replaced anytime if two or more disks are installed in
the SnapServer. However, only one disk at a time can be replaced. While dual parity allows
two disks to be swapped out simultaneously, they will only be incorporated one at a time.
The following procedures assume that you are installing a new, Overland-approved disk
drive as a replacement for a failed drive.
NOTE: Failed drives cannot be added back in to a RAID set.
DynamicRAID Mode
If a disk drive fails, the Administration page displays a Disk Failure message and an icon
with a link to the Disks page. Both the Storage Pools and Storage Pool Properties pages show
the degraded status. If single parity mode is being used, no parity protection message is
shown. In dual parity mode, just a degraded status is shown.
NOTE: If a working disk is removed, the same changes occur as when a disk fails.
Once a disk is removed, a new disk can be inserted into any empty slot and DynamicRAID
will recognize it as a replacement. The system still shows the storage as degraded but a new
message appears on both the Storage Pools and Storage Pool Properties pages saying
Disks Detected (click to repair)
pages show
NOTE: Disk drives that have been previously configured can be added; they are indicated in the
If there are no errors, after the new disk is incorporated any LEDs are turned off and
statuses are updated.
10400317-003 05/2012
for all units, click either the master LED stop icon (
OK - New/Unused Disk
Storage > Disks list by the
been used in a different system. If you want to use the drive, add it to the RAID as you would
any other drive.
©2010-12 Overland Storage, Inc.
) to flash the unit's status and drive status LEDs for
. At the same time, Storage Pool Disks and Disks
in that slot. To add the disk, click the repair link.
icon and a message stating that the disk has previously
) to stop the flashing.
) or link located below the legend.
Disks
New
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