10400328-001 02/2011
©2011 Overland Storage, Inc.
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SnapServer GuardianOS 6.5 Setup Guide
Changing the Default Storage Configuration
This results in a data volume capacity of 576 GB for this SnapServer 520/1 TB.
Changing the Default Storage Configuration
The SnapServer’s flexible storage architecture allows for a wide variety of
implementations to suit many different storage needs. In some cases, administrators
may change the default configuration to increase capacity by modifying the
configuration of the SnapServer, or attaching one or more expansion arrays.
When a backup scheme does not require backing up from a snapshot, or when a
backup window can be used while files are not active, the snapshot space can be
reclaimed for storage on the data volume. In cases when backup is ongoing or very
frequent, a RAID 0 configuration may be more appropriate than a RAID 5. In cases
where multiple expansion arrays are being attached to the SnapServer, a combination
of a RAID 1 and hot spares may be the optimal configuration for the SnapServer.
Storage Configuration Examples
The following examples and procedures detail three common alternative storage
configurations.
Removing the Snapshot Space
A common change to the default storage configuration is to remove the snapshot space
and add the capacity to the primary data volume. Perform the following steps to
remove the snapshot space and add its capacity to the data volume. This procedure
will preserve any data that is already present on the server.
1. Open a web browser, enter the name or IP address of the server in the address
bar, and log into the browser-based Web Management Interface as an
administrator.
2. Navigate to the
Storage > Snapshots
page, and click
Snapshot Space
.
3. Click the RAID set you want to change, and change the Snapshot Space field,
then click
OK
.
4. Navigate to the
Storage > Volumes
page and click the data volume (by default,
VOL0).
5. Click the
Grow to Max. Size
button to consume the remaining capacity on the RAID
or change the volume Size field to the desired size).
6. Click
OK
.
Changing the RAID Configuration
The default RAID configuration can be easily changed by removing the existing RAID
and building one or more new RAID sets. A disk drive must be a part of a RAID in
order to create a volume and share. You can create single-drive RAID 0’s to replicate a
JBOD configuration.
In the following procedure, we will create two 2-drive mirrors on a SnapServer 520.
Capacity is reduced in the head to provide redundancy and high data availability.
Capacity is regained by adding expansion arrays in the following procedure. This
configuration can sustain up to two drive failures, making it more fault tolerant than
a RAID 5. This procedure will not retain any data that is already present on the
server.
1. Navigate to
Storage > RAID Sets
and click the RAID to be deleted.
