Adaptec 5325301507 - Snap Server 4400 NAS, Administrator'S Manual

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SnapServer Administrator Guide 49 SnapServer Administrator Guide 49
Chapter 4
Storage Configuration and
Expansion
Note
Much of the configuration discussion presented here is not applicable to
SnapServers with fewer than four (4) drives. For SnapServer 110 and 210, see the
User’s Guide for SnapServer 110 and 210 for storage configuration guidelines.
SnapServers with four to eight drives are preconfigured as a single RAID 5,
SnapServers with twelve drives are preconfigured with a single RAID 6,
and SnapServer 110 and 210 are preconfigured with a single RAID 0. Each
server’s disk space is preconfigured with a single volume encompassing 80
percent of available capacity and a single share pointing to the volume. The
default storage configuration reserves 20 percent of the data space for
snapshots (including servers that require a license to activate snapshots). If
the default configuration is appropriate for your needs, you need only
create the directory structure, set share access permissions, and (optionally)
schedule snapshots.
You may have requirements that demand a different configuration. For
example, if the information on a SnapServer is mission-critical but
infrequently accessed, creating a RAID 1 may be a more suitable
configuration. In another example, some administrators prefer to keep
certain sensitive data, such as financial records, in a separate file system for
added security.
Topics in Storage Configuration:
• Default Storage Configuration
• Changing the Default Storage Configuration
• RAIDs
• Volumes
• Quotas
• Data Migration
• Expansion Arrays
• Disks and Units