Dell PowerVault DP600 Bedienungsanleitung PDF herunterladen (Seite 100)

100

Performance Object

and Counter

Description Value That Might

Indicate a Problem

Possible Causes

large processing

load on both the

protected computer

and the DPM server.

• A runaway process

is exhausting

system resources.

• The DPM server

does not have

sufficient processing

capacity to handle

the DPM workload.

Physical Disk: Current

Disk Queue Length

(for all instances)

Measures the number

of disk requests that

are currently waiting

and the requests

currently being

serviced.

> 80 requests for

more than 6 minutes.

Indicates possibly

excessive disk

queue length.

• Multiple DPM jobs

that are running

simultaneously are

placing a high

demand on disk

resources.

• Disk performance

needs tuning.

• Disk resources on

the DPM server are

not sufficient for the

current DPM

workload.

See Also

Managing Performance

Improving Performance

Performance is determined by workload and capacity. A slow computer might perform adequately

when it has a very light workload. In contrast, the performance of an extremely powerful computer

might suffer when challenged by an excessive workload. In operations between two computers

on a network, the workload that can be handled effectively will be limited by the component with

the least capacity, whether it is one of the computers or the network connection itself.

As a general rule, you can improve performance by making changes to the workload, the

capacity, or both.

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