Avago Technologies MegaRAID Fast Path Software - Manual (Page 388)

Page 388 LSI Corporation Confidential | July 2011
MegaRAID SAS Software User Guide Chapter 9: Monitoring Controllers and Its Attached Devices | Running a Patrol Read
1. Select an operation mode for patrol read from the following options:
— Automatic: Patrol read runs automatically at the time interval you specify on
this window.
— Manual: Patrol read runs only when you manually start it, by selecting Start
Patrol Read from the controller options window.
— Disabled: Patrol read does not run.
2. (Optional) Specify a maximum count of drives to include in the patrol read.
The count must be a number from 1 to 255.
3. (Optional) Click virtual drives in the list under the heading Virtual Drives to include
in the patrol read and click Add > or click Add All >> to include all of the virtual
drives.
4. (Optional) Change the frequency at which the patrol read runs.
The default frequency is weekly (168 hours), which is suitable for most configurations.
The other options are hourly, daily, and monthly.
NOTE: LSI recommends that you leave the patrol read frequency and other patrol read
settings at the default values to achieve the best system performance. If you decide to
change the values, record the original default values here so you can restore them later,
if necessary:
Patrol Read Frequency: ___________________
Continuous Patrolling: Enabled/Disabled
Patrol Read Task Rate: ___________________
5. (Optional) Set Patrol Read to run at a specific time.
The default setting for the patrol read is to start when you click OK on this window.
To change the default setting so that the patrol read starts at a specific time, follow
these steps (otherwise, skip this step and proceed to step 8):
a. Deselect the Perform Patrol Read when I click OK check box.
b. Select the month, year, day, and time to start the patrol read.
6. Click OK to enable your patrol read selections.
NOTE: Patrol read does not report on its progress while it is running. The patrol read
status is reported only in the event log.
7. Click Go to enable these Patrol Read options.
To start a patrol read without changing the patrol read properties, follow these steps:
1. Click a controller icon in the left panel of the MegaRAID Storage Manager main
menu screen.
2. Select Go To->Controller->Start Patrol Read in the menu bar or right-click a
controller and select Start Patrol Read from the menu.
3. When prompted, click Yes to confirm that you want to start a patrol read.