User manual

FIBRE-to-SAS/SATA RAID SUBSYSTEM
User Manual
73
6.1.4 Auto Rebuild
The RAID subsystem has 3 rebuild options if a RAID becomes degraded. These are
disabled , ASAP and background . These options can be set in the
ProRAID Manager RAID Functions Î Create RAID Set screen and can be
changed in RAID Functions Î Modify/Delete RAID Set screen. Background is
the default setting. The RAID can still be accessed during a rebuild, but
performance will be reduced.
NOTE: If a Verify is scheduled when a rebuild is in progress, the
Verify will not take place.
6.1.4.1 Disabled
If Auto Rebuild is set to Disabled, the RAID will not rebuild unless you manually
select Rebuild in the ProRAID Manager RAID Functions Î Rebuild RAID Set
screen. If a RAID becomes degraded, an alert will still be generated even if Auto
Rebuild is set to disabled.
6.1.4.2 ASAP
If Auto Rebuild is set to ASAP, the RAID will rebuild as quickly as possible while still
allowing reading and writing to occur. Read and write performance may be
substantially reduced from normal operation.
6.1.4.3 Background
If Auto Rebuild is set to Background, the RAID will rebuild, but priority will be given
to normal read and write operations. If there is a high level of read and write
activity, the rebuild may take a long time.