ASRock Z87 Extreme11/ac LSI Mega RAID Storage Manager Guide - Page 82

Patrol Read Task Rates

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- Disabled: Patrol read does not run. 4. (Optional) Specify a maximum count of drives to include in the patrol read. The count must be a number from 1 to 255. 5. (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. 6. (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 7. (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. 8. 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. 9. 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. Patrol Read Task Rates You have the option to change the patrol read task rate. The task rate determines the amount of system resources that are dedicated to a patrol read when it is running. LSI recommends, however, that you leave the patrol read task rate at its default setting. If you raise the task rate above the default, the foreground tasks will run more slowly and it may seem that the system is not responding. If you lower the task rate below the default, rebuilds and other background tasks might run very slowly and might not complete within a reasonable time. For more information, about the patrol read task rate, see Changing Adjustable Task Rates. Page 82 DB09-000202-05 37857-02 Monitoring Controllers and Its Attached Devices Rev. F - May 2011 Copyright © 2011 by LSI Corporation. All rights reserved.

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Page 82
Monitoring Controllers and Its Attached Devices
DB09-000202-05 37857-02
Rev. F - May 2011
Copyright © 2011 by LSI Corporation. All rights reserved.
–
Disabled
: Patrol read does not run.
4.
(Optional) Specify a maximum count of drives to include in the patrol read.
The count must be a number from 1 to 255.
5.
(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.
6.
(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:
___________________
7.
(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.
8.
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.
9.
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.
Patrol Read Task Rates
You have the option to change the patrol read
task rate
. The task rate determines the amount of
system resources that are dedicated to a patrol read when it is running. LSI recommends,
however, that you leave the patrol read task rate at its default setting.
If you raise the task rate above the default, the foreground tasks will run more slowly and it may
seem that the system is not responding. If you lower the task rate below the default, rebuilds and
other background tasks might run very slowly and might not complete within a reasonable time.
For more information, about the patrol read task rate, see
Changing Adjustable Task Rates
.