Resource dependencies – Dell AX4-5 User Manual

Page 42

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42

Understanding Your Failover Cluster

AND or OR. If you use AND, all the dependent resources must come
online before your resource can come online. If you use OR, any one of
the dependent resources must be online before your resource can
come online.

Policies- Allows you to define your desired response to a failure of your
resource. You can also specify the Pending time-out value here which
is the length of time your resource can take to change states between
online and offline before the Cluster Service puts it in a Failed state.

Advanced Policies- Allows you to select the possible nodes that can
own the resource. The cluster also checks the health of the resource
using either basic health check or thorough health check. You can
define the Basic resource health check interval and Thorough
resource health check interval in Advanced Policies window.

Resource Dependencies

Failover Clustering uses the Resource Dependencies list when bringing
resources online and offline. For example, if a group with a physical disk and a
file share is brought online together, the physical disk containing the file share
must be brought online before the file share. Table 4-2 shows resources and
their dependencies.

Table 4-2.

Cluster Resources and Required Dependencies

Resource

Required Dependencies

File share

Network name (only if configured as a distributed file system
[DFS] root)

IP address

None

Network name IP address that corresponds to the network name

Physical disk

None

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