Adding Additional Disk Drives - Overland Storage SnapServer Administrator's Manual

SnapServer 7.0 Administrator's Guide
NOTE: The Repair RAID button only appears when a drive has failed or been removed, and the
The RAID set status changes to Resyncing while the new drive is incorporated into the
RAID set. It reads OK once the incorporation is complete.

Adding Additional Disk Drives

If empty slots are available, you can add an Overland-approved disk drive to expand the
storage pool/volume on your SnapServer.
DynamicRAID Mode
When adding additional disk drives, keep the following in mind:
• While disk sizes within a Storage Pool can vary, the type of disks used must be the
same (such as, SAS 7200 rpm or SAS 15K rpm).
• If a non-homogeneous disk is added to a Storage Pool, it is indicated in the Storage >
Disks
• If only a single disk is in a Storage Pool, the second disk added must be of equal or
greater size.
• A move from dual parity to single parity is allowed at any time, provided the storage
pool is healthy. A move from single parity to dual parity is only allowed when a new
disk drive is added that is large enough to support the new parity mode.
• If a much larger disk is added to a Storage Pool where the parity prevents the use of
its extra capacity, the disk is labeled Underutilized.
Traditional RAID Mode
This section describes how to safely add drives to an existing RAID 1, 5, 6, or 10 set. On
SnapServers, after a fresh drive is inserted into a drive bay, you must use the Web
Management Interface ( Storage > RAID Sets ) to add it to a RAID set.
10400317-001 10/2011
RAID is in degraded mode.
list by the icon.
©2010-11 Overland Storage, Inc.
6 – Other Storage Options
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