Dell PowerEdge RAID Controller H700 - Manual (Page 39)

Storage Controller Features 39
• Patrol Read adjusts the amount of controller resources dedicated to
Patrol Read operations based on outstanding disk I/O. For example,
if the system is busy processing I/O operation, then Patrol Read uses
fewer resources to allow the I/O to take a higher priority.
• Patrol Read does not run on any disks involved in any of the
following operations:
–
Rebuild
– Replace Member
– Full or Background Initialization
– CC
– RLM or OCE
NOTE: By default, Patrol Read automatically runs every seven days on configured
SAS and SATA hard drives. Patrol Read is not necessary on SSD and is disabled by
default.
PERC7.2_UG.book Page 39 Thursday, March 3, 2011 2:14 PM