Dell PowerEdge RAID H700 User Manual page 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.
Storage Controller Features
39