Server Products
Intel® RAID Controllers
What is the Patrol Read Function and How Do I Use It?

"Patrol Read" is a user definable option available in the Intel® RAID Web Console 2 that performs drive reads in the background and maps out any bad areas of the drive.

Patrol read checks for physical disk errors that could lead to drive failure. These checks usually include an attempt at corrective action. Patrol read can be enabled or disabled with automatic or manual activation.

A Patrol Read periodically verifies all sectors of physical disks that are connected to a controller, including the system reserved area in the RAID configured drives. Patrol Read works for all RAID levels and for all hotspare drives.

This process starts only when the RAID controller is idle for a defined period of time and no other background tasks are active, though it can continue to run during heavy I/O processes.

See the Intel® RAID Software User’s Guide for more detail and configuration information of the controller Patrol Read function.

This applies to:

Intel® RAID Controller SRCSAS144E
Intel® RAID Controller SRCSAS18E
Intel® RAID Controller SRCSASJV
Intel® RAID Controller SRCSASRB
Intel® RAID Controller SRCSATAWB
Intel® Server Board S3200SH
Intel® Server Board S5000PAL
Intel® Server Board S5000PSL Family
Intel® Server Board S5400SF
Intel® Server Board X38ML
Intel® Server System SR1560SF

Solution ID: CS-028742
Last Modified: 07-Oct-2014
Date Created: 17-Jan-2008
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