To configure another node for a multi-node cluster setup for IBM Spectrum Archive EE, complete the following steps: 

1. Log on to the operating system as a root user. 

2. Start GPFS (if it is not already started) by running the following command: 

# mmstartup -a 

3. Mount the GPFS file system on all nodes in the IBM Spectrum Scale cluster (if it is not already mounted) by running the following command: 

# mmmount all -a 

4. Start the IBM Spectrum Archive EE configuration utility with the -m ADD_NODE  option by running the following command and answering the prompted questions: 

# /opt/ibm/ltfsee/bin/ltfsee_config -m ADD_NODE 

Important:  This step must be performed on all nodes except for the first node that was configured in 6.2.2, “Configuring a single node cluster” on page 106. 

Example 6-4 shows how to add a secondary node and set it as a redundant control node by running ltfsee_config -m ADD_NODE .  In step 5 of the command, after selecting which library to add the node to, a prompt will appear asking to make the node a redundant control node. Enter y  to make the second node a redundant control node. Only two nodes per library can be control nodes. If there are more than two nodes added to the cluster, enter n  for each additional node. 

[root@ltfsml2 ~]# ltfsee_config -m ADD_NODE The EE configuration script is starting: /opt/ibm/ltfsee/bin/ltfsee_config -m ADD_NODE ADD_NODE mode starts . ## 1. Check to see if the cluster is already created ## The cluster is already created and the configuration file ltfsee_config.filesystem exists. ## 2. Check prerequisite on node ## Successfully validated the prerequisites. ## 3. IBM Spectrum Scale (GPFS) Configuration for Performance Improvement ## Setting workerThreads=512 Setting dmapiWorkerThreads=64 Configured IBM Spectrum Scale (GPFS) preformance related settings. ## 4. Configure space management ## Disabling unnecessary daemons... Editing Space Management Client settings... Deactivating failover operations on the node. Restarting Space Management service... Stopping the HSM service. Terminating dsmwatchd............. Starting the HSM service. Starting dsmmigfs.................................. Activating failover operations on the node. Configured space management. 

