Performance thresholds properties Performance thresholds tasks Copy performance thresholds properties

You can use the Performance thresholds properties panel to set error, warning, and alert levels.

Performance Manager checks devices to determine which thresholds are enabled and to see if any of the performance statistics exceed the threshold values that you have set.

Menu path
Multiple Device Manager --> Manage performance --> Thresholds --> Performance thresholds panel
Fields
Panel name
Instructions
Device
Name
Status
Warning level
Error level
Alert level
OK
Restore Defaults
Copy Threshold Properties
Cancel
Help

A description of the thresholds follows. The list includes the storage device defaults:

Note:Note: The thresholds are device dependent. Therefore, not all of the listed thresholds are displayed for a selected device.
Threshold name
Description
Disk utilization
Percent of time busy for each Enterprise Storage Server (ESS) array.

ESS defaults:

Status:
Enabled
Warning
50
Error
80
Percent of sequential I/Os
Percent of sequential I/Os for the ESS.

ESS defaults:

Status:
Enabled
Warning
80
Error
80
Nonvolatile storage
Percent of time full for the ESS.

ESS defaults:

Status:
Enabled
Warning
3
Error
10
Average cache holding time
Measured in seconds for each ESS cluster.

ESS defaults:

Status:
Enabled
Warning
60
Error
30
I/Os rate
Total number of I/Os requests for each ESS cluster.

ESS defaults:

Status:
Disabled
Warning
None
Error
None
VDisk I/Os rate
Total number of virtual disk I/Os for each I/O group.

SAN Volume Controller defaults:

Status:
Disabled
Warning
None
Error
None
VDisk bytes per second
Virtual disk bytes per second for each I/O group.

SAN Volume Controller defaults:

Status:
Disabled
Warning
None
Error
None
MDisk I/O rate
Total number of managed disk I/Os for each managed disk group.

SAN Volume Controller defaults:

Status:
Disabled
Warning
None
Error
None
MDisk bytes per second
Managed disk bytes per second for each managed disk group.

SAN Volume Controller defaults:

Status:
Disabled
Warning
None
Error
None
Data transaction (count per second)
Total server-level data transaction rate.

SAN Volume Controller defaults:

Status:
Disabled
Warning
None
Error
None
Data transaction for updates (count per second)
Total server-level data transaction rate.

SAN Volume Controller defaults:

Status:
Disabled
Warning
None
Error
None
Related topics Performance thresholds tasks Copy performance thresholds properties

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