Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 5.1 Manuel d'utilisateur télécharger pdf (Page 6)

• Assign each Caché instance a unique cluster IP address.

• Assign each Caché instance a unique default port number.

• Assign each Caché instance one or more disk partitions where it is installed and where

the databases reside. Caché instances must not share partitions.

Both types of conﬁguration require the following tasks:

• Calculate and update the settings for the various kernel parameters that need to be modiﬁed

to support the Caché installation and verify that both nodes can support the requirements.

If you are conﬁguring an active-active cluster, add the parameter values together, as one

node may at some point be running both instances of Caché.

See the “Calculating System Parameters for UNIX and Linux” appendix of the Caché

Installation Guide for more information.

• Assign a virtual IP address for each active Caché instance.

• Verify that there are enough partitions for each active Caché instance to have its own.

• Verify that the Red Hat Cluster Manager is installed and the cluster service is running.

(See the “Cluster Administration” chapter of Red Hat Cluster Suite, Conﬁguring and

Managing a Cluster for a description of the Cluster Status Tool and the .service com-

mand.)

• Choose the Red Hat service names for your Caché instance names. Though not required,

using the same names simpliﬁes the cluster conﬁguration.

2 Configuring the Cluster Services for Caché

To prepare the cluster system and conﬁgure the ﬁrst cluster node, perform the following

steps:

1. Use the parted utility to create the partitions as described in the “Partitioning Disks”

section of Red Hat Cluster Suite, Conﬁguring and Managing a Cluster.

2. Create the mount points for the partitions on each cluster node.

3. Choose one node on which to start work.

4. Deﬁne the Caché cluster services.

5. Install Caché on this node.

2 Caché ECP Clusters on Red Hat Enterprise Linux

Configuring the Cluster Services for Caché

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Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 5.1 Manuel d'utilisateur Page 6