Disk array controller: Difference between revisions

Revision as of 14:13, 19 January 2014

Revision as of 08:09, 28 October 2014

Line 17:

Those external disk arrays are usually purchased as an integrated subsystem of RAID controllers, disk drives, power supplies, and management software. It is up to controllers to provide advanced functionality (various vendors name these differently):

* automaticAutomatic [[failover]] to another controller (transparent to computers transmitting data)

* longLong-running operations performed without [[downtime]]

** formingForming a new RAID set

** reconstructingReconstructing ''degraded'' RAID set (after a disk failure)

** addingAdding a disk to online RAID set

** removingRemoving a disk from a RAID set (rare functionality)

** partitioningPartitioning a RAID set to separate volumes/LUNs

* [[snapshot (computer storage)|snapshots]]

* [[Business continuance volume]]s (BCV)