Adaptec 5325301507 Administration Guide - Page 67
Changing the Default Storage Configuration, RAIDs, Factors in Choosing a RAID Type
UPC - 753253015740
View all Adaptec 5325301507 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 67 highlights
Changing the Default Storage Configuration 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 most appropriate. In cases where multiple expansion arrays are attached to the SnapServer, a combination of a RAID 1 and hot spares may be the optimal configuration for the SnapServer. See the online help for more information. RAIDs RAIDs are created, viewed, edited, and deleted from the Storage > RAID Sets screen of the Administration Tool. SnapServers with four to eight drives ship with all disk drives configured as a RAID 5. SnapServers with twelve drives ship with all disk drives configured as a RAID 6. SnapServers with one or two drives ship with the drive(s) configured as a RAID 0. Before changing the default RAID configuration, consider the following information on the SnapServer's RAID implementation. 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. Factors in Choosing a RAID Type The type of RAID configuration you choose depends on a number of factors: • The importance of the data • Performance requirements • Drive utilization • The number of available drives For example, in configuring the disk drives of a four-drive SnapServer, the decision whether to include a hot spare in the RAID depends on the value you place on capacity vs. high availability. If capacity is paramount, you would use all drives for storage; if high availability were more important, you would configure one of the Chapter 4 Storage Configuration and Expansion 51