Users Guide

● Auto — Initiates the Patrol Read task. After the task is complete, it automatically runs again within a specified period. For
example, on some controllers the Patrol Read runs every four hours and on other controllers, the Patrol Read runs every
seven days. The Patrol Read task runs continuously on the system starting again within the specified period after each
iteration of the task completes. If the system reboots while the Patrol Read task is running in Auto mode, the Patrol Read
restarts at zero percent (0%). When the Patrol Read task is set to Auto mode, you cannot start or stop the task. Auto
mode is the default setting.
NOTE: For more information on how often the Patrol Read task runs when in Auto mode, see your controller
documentation.
● Manual — Enables you to start and stop the Patrol Read task using Start and Stop Patrol Read. Setting the mode to
Manual does not initiate the Patrol Read task. If the system reboots while Patrol Read is running in Manual mode, Patrol
Read does not restart.
●
Disabled — Prevents the Patrol Read task from running on the system.
To set Patrol Read mode
Select the desired Patrol Read Mode option. The options available are:
● Auto — Initiates the Patrol Read task. After the task is complete, it automatically runs again within a specified period. For
example, on some controllers the Patrol Read runs every four hours and on other controllers, the Patrol Read runs every
seven days. The Patrol Read task runs continuously on the system starting again within the specified period after each
iteration of the task completes. If the system reboots while the Patrol Read task is running in Auto mode, the Patrol Read
restarts at zero percent (0%). When the Patrol Read task is set to Auto mode, you cannot start or stop the task. Auto
mode is the default setting.
NOTE: For more information on how often the Patrol Read task runs when in Auto mode, see your controller
documentation.
● Manual — Enables you to start and stop the Patrol Read task using Start and Stop Patrol Read. Setting the mode to
Manual does not initiate the Patrol Read task. If the system reboots while Patrol Read is running in Manual mode, Patrol
Read does not restart.
● Disabled — Prevents the Patrol Read task from running on the system.
Check Consistency report
The check consistency report provides information on all the consistency checks performed on the controller in a chronological
order. It provides information such as last run time and result. If the consistency check fails, it provides the reason for the
failure.
Performing a Check Consistency
The Check Consistency task verifies the accuracy of the redundant (parity) information. This task only applies to redundant
virtual disks. When necessary, the Check Consistency task rebuilds the redundant data. If the virtual disk is in a Failed
Redundancy state, running a check consistency may return the virtual disk to a Ready state.
Performing Check Consistency using OMSA
The link below provides information on how to perform Check Consistency using OpenManage Server Administrator (OMSA):
http://www.dell.com/support/article/us/en/04/sln156918/perc-how-to-perform-a-check-consistency-using-openmanage-
server-administrator?lang=en
Canceling a Check Consistency
The Cancel Check Consistency task stops a check consistency operation while it is in progress.
Pausing a Check Consistency
The Pause Check Consistency task pauses a check consistency while it is in progress.
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Troubleshooting hardware issues