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Setting timeouts and intervals, Setting timeouts and intervals 63 – HP StorageWorks 8000 NAS User Manual

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Configuring Your System and Network 63

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4

In the Quorum Server field, type the hostname for the Quorum server on

your network.

5

Click OK.

Setting Timeouts and Intervals

Note

This section applies only if you have purchased a high-

availability NAS solution.

Before you proceed, you must stop the clustering services to edit the

information.
The values you set on this screen let you determine the rate at which problems

on the NAS server are detected. You can set timeouts and intervals for the

Quorum server, heartbeat, and network-failure detection. Recommended

values appear automatically in the fields.
Keep in mind:

If you enter low values, problems will be detected sooner but susceptibility

to high network traffic will be greater.

If you enter high values, problems will not be detected quickly but false

failovers will occur less frequently.

To edit timeouts and intervals:

1

In the Command View NAS web interface, click the Configuration tab.

2

Navigate down the tree to High Availability, then select Cluster

Properties.

3

Select Actions > Edit Timeouts and Intervals.

4

Enter values in minutes and seconds in the following fields:

Quorum Server Polling Interval: Time between polling attempts

between a cluster node and the Quorum server.

Heartbeat Interval: Time between heartbeat messages from one cluster

member to another. This value should be at least half of the Node

Timeout value.

Network Polling Interval: Interval for polling the network interfaces for

link status to determine that they can still send and receive data. This

value determines how quickly network failures are detected.