Backing Up The Cluster Configuration Using The Cli - IBM Storwize V7000 Troubleshooting And Maintenance Manual

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v No independent operations that change the cluster configuration can be running while the backup

command is running.

v No object name can begin with an underscore character (_).

Note:

v The default object names for controllers, I/O groups, and managed disks (MDisks) do not restore

correctly if the ID of the object is different from what is recorded in the current cluster configuration

data file.

v All other objects with default names are renamed during the restore process. The new names appear in

the format name_r where name is the name of the object in your cluster.

Before you restore your cluster configuration data, the following prerequisites must be met:

v You have the Security Administrator role associated with your user name and password.

v You have a copy of your backup cluster configuration files on a server that is accessible to the cluster.

v You have a backup copy of your application data that is ready to load on your cluster after the restore

configuration operation is complete.

v You know the current license settings for your cluster.

v You have not removed any hardware since the last backup of your cluster configuration. If you had to

replace a faulty node, the new node must use the same worldwide node name (WWNN) as the faulty

node that it replaced.

Note: You can add new hardware, but you must not remove any hardware because the removal can

cause the restore process to fail.

v No zoning changes have been made on the Fibre Channel fabric which would prevent communication

between the Storwize V7000 and other nodes or storage controllers which are present in the

configuration.

The restore must be performed to a single node cluster. You can restore the configuration using any node

as the configuration node. However, if you do not use the node that was the configuration node when

the cluster was first created, the unique identifier (UID) of the volumes that are within the I/O groups

can change. This can affect IBM Tivoli

Manager, and any other programs that record this information.

The Storwize V7000 analyzes the backup configuration data file and the cluster to verify that the required

disk controller system nodes are available.

Before you begin, hardware recovery must be complete. The following hardware must be operational:

hosts, Storwize V7000, disk controller systems, disks, the Ethernet network, and the SAN fabric.