Adaptec 5325301656 Administration Guide - Page 56

Default Storage Configuration Default Storage Configuration Snap Servers with four or more drives are preconfigured as a single RAID 5 and Snap Server 110 and 210 are preconfigured as a single RAID 0. Each server's disk space has a single volume, and a single share pointing to the volume. The share access settings of the default share grant access to all users and groups over all protocols. The data space is preconfigured to allocate 80 percent of the RAID for the file system and the remaining 20 percent for snapshots (including servers that require a license to activate snapshots). Drives / RAID Snap Server 110 Snap Server 210 Snap Server 410 Snap Server 520 Snap Server 550 Snap Server 650 SANbloc S50 1-disk RAID 0 2-disk RAID 0 4-disk RAID 5 (No hot spare configured) up to 12-disk JBOD Volume Snapshot Pool 80% of RAID capacity is allocated to the default volume. 20% of RAID capacity is allocated to the snapshot pool. Allocation Security Shares Share Access Security Model A single share points to the volume. Grants read/write access to all users and groups over all protocols. Windows-style file-level security (can be changed to UNIX) Changing the Default Storage Configuration The Snap Server'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 Snap Server, 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 the default RAID 5 42 Snap Server Administrator Guide