Users guide

Intel® RAID Software User Guide 204
9.21.3.1 Running a Patrol Read
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 hot-spare drives. A patrol read is initiated only when
the controller is idle for a defined period and has no other background activities.
To enable and configure Patrol Read, follow these steps:
1. Click a controller icon in the left panel.
2. Select the Go
To -> Controller tab and click Set Patrol Read Properties to
display a pop-up window, as shown in Figure 129.
Figure 129. Patrol Read Configuration
3. Select an Operation Mode for pa
trol read. The options are:
— Automatic: Patrol Read runs automaticall
y at the time interval you specify on
this screen.
— M
anual: Patrol Read runs only when you manually start it by selecting Start
Patrol Read from the controller options screen (see Figure 129).
— Disabled: Patrol
Read does not run at all.
4. (Optional) Specify a maximum count of physical drives
to include in the patrol
read. The default number is 255; if you want, you can specify a lower number.
5. (Optional) Select virtual disks on this controller to exclude from the
Patrol Read.
The existing virtual disks are listed in the gray box. To exclude a virtual disk, select
the check box next to it.
6. Enter the Interval at which the P
atrol Read will run.