User's Manual

46 Monitoring System Events and Storage Devices

Patrol Read Frequency: ___________________

Continuous Patrolling: Enabled/Disabled

Patrol Read Task Rate: ___________________

(Optional) Select

Continuous Patrolling

if you want patrol read to run

continuously in the background instead of running at periodic intervals. If

you select

Continuous Patrolling

, the time interval field is grayed out.

Click

to enable the patrol read properties.

NOTE: Patrol read does not report on its progress while it is running. The

patrol read status is reported in the Event Log only.

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 a patrol read is running. Dell recommends, however, that you leave the

patrol read task rate at its default setting. If you raise the task rate above the

default, foreground tasks will run more slowly and it might seem that the

system is not responding. For more information, about the patrol read task

rate, see

Changing Adjustable Task Rates

Monitoring Virtual Disks

When Dell SAS RAID Storage Manager is running, you can see the status of

all virtual disks. If a virtual disk is operating normally, the icon looks like this:

. If the virtual disk is running in degraded mode (for example, if a physical

disk has failed) a small yellow circle appears to the right of the icon: .

(See

Physical/Logical View Panel

for a complete list of device icons.)

For the Dell PERC 5/i controller, and the Dell PERC 6/i controller, when you

select the Logical tab, the left panel of the Dell SAS RAID Storage Manager

window shows which physical disks are used by each virtual disk. The same

physical disk can be used by multiple virtual disks.

To display complete information about the virtual disk , click the Logical tab

in the left panel, click on a virtual disk icon in the left panel, and click the

Properties tab in the right panel. All of the virtual disk properties appear.

They are defined in the Glossary.