Red Hat GLOBAL FILE SYSTEM 5.0 Instrukcja Użytkownika Pobierz pdf (Strona 25)

Deploying a Data Sharing Cluster

• apc port=1 is the name of the fencing device (APC) and the unique port ID of the APC

switch power for the psbmNode server. Each node in the cluster must have its own unique

port ID.

Run the ccs_tool addnode command for each node you want to add to the cluster.

4 Create cluster resources. For a data sharing cluster, you need to create two resources—script

and IP address.

a Script. One script per cluster is required. The following command creates the script

resource vzservice:

# ccs_tool addscript vzservice /etc/init.d/vz-cluster

When creating scripts, just replace vzservice with your own name.

b IP address. An IP address is required for each pair of vz and parallels-server services. This

IP address is used for a direct SSH connection to the server. Note that the IP address will

be managed by the cluster and, therefore, must not be already in use or assigned to any

node. For example:

# ccs_tool addip 10.10.10.111

5 Create and configure failover domains. You need to create one failover domain per cluster

service managed by the cluster and configure the list of cluster nodes that will be able to run

cluster services from these domains. For example, you can run the following command to

create the failover domain domain1 and add the nodes psbmNode1 and psbmNode2 to this

domain:

# ccs_tool addfdomain domain1 psbmNode1 psbmNode2

6 Create clustered services. The number of services must correspond to the number of active

servers and shared partitions. When creating a clustered service, do the following:

a Enable the service autostart.

b Configure the service operation mode:

• For an active/passive cluster, configure the service to run exclusively. This will prevent the

cluster from trying to run more than one pair of vz and parallels-server services on the same

physical server.

• For an active/active cluster, make sure that the service is configured not to run exclusively

so that more than one vz service will be able to run on the same node.

a Set the service recovery policy to relocate or restart. In the latter case, if the vz and

parallels-server services are stopped for some reason, the cluster will try to restart these

services on the same server before relocating it to another one.

b Specify the IP address resource for the service.

c Specify the proper failover domain.

d Specify the script resource for the service.

e Specify the name to assign to the service.

For example:

# ccs_tool addservice -a 1 -x 1 -r restart -i 10.10.10.200 -d domain1 -s vzservice

pservice1

1 2 ... 20 21 22 23 24 25 26 27 28

Brak uwag

Red Hat GLOBAL FILE SYSTEM 5.0 Instrukcja Użytkownika Strona 25