Dell 341-7212 User Guide - Page 46

Monitoring Virtual Disks

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Patrol Read Frequency Continuous Patrolling: Enabled/Disabled Patrol Read Task Rate 7 (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. 8 Click Go 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. 46 Monitoring System Events and Storage Devices

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46
Monitoring System Events and Storage Devices
Patrol Read Frequency:
___________________
Continuous Patrolling:
Enabled/Disabled
Patrol Read Task Rate:
___________________
7
(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.
8
Click
Go
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.