You can remove a Tivoli® Storage
Manager server from
an environment that supports multiple servers.
Before you remove a server from managing a file system, recall
all files from the Tivoli Storage
Manager server to
the local file system. Then, remove the server with the following
steps:
- Remove the Tivoli Storage
Manager server from
the multiple server list by issuing the following command: dsmmigfs removemultiserver -server=server_name file_system_name. Run the command
for all file systems that were managed by the server. After
you run the command, files are not backed up or migrated to the server
that was removed. You can still recall migrated copies and restore
backup copies from the server that was removed.
- Run the dsmMultiServerRemove.pl script.
The
dsmMultiServerRemove.pl script does the following three tasks:
- Recalls all migrated files that are coupled with the Tivoli Storage
Manager server that
was removed to the specified file system.
The Tivoli Storage Manager for Space Management
client determines how much space is required to recall all files to
the file system. If there is not enough space, the Tivoli Storage Manager for Space Management
client notifies you. To remove the server, make space available and
run the script again.
- Reconciles the specified file system with the Tivoli Storage
Manager server that
was removed. The following reconciliation tasks are completed:
- The Tivoli Storage Manager for Space Management client verifies that valid
objects for each local stub file exist in the space management pool
of the specified Tivoli Storage
Manager server.
- When orphans are identified, their names are
recorded in the .SpaceMan/orphan.stubs file.
- The Tivoli Storage Manager
for Space Management client expires all files in the space management
storage pool on the Tivoli Storage
Manager server.
Note: The script does not expire backup copies. If you want to
also expire backup copies, you can modify the script by adding the
backup-archive client command dsmc expire.
The dsmMultiServerRemove.pl script calls the dsmreconcileGPFS.pl script for the reconciliation.
- Uncouples all files that are coupled with the Tivoli Storage
Manager server that
was removed.
More than one recall and reconciliation process can run simultaneously.
For example, you can simultaneously remove server TSM_server from several file systems with commands like
the following commands: dsmMultiServerRemove -server=TSM_server file_system_A
dsmMultiServerRemove -server=TSM_server file_system_B
dsmMultiServerRemove -server=TSM_server file_system_C
To query status of the multiple-server environment, issue
a command like the following command:
dsmmigfs
querymultiserver file_system_name.
After files are decoupled from the Tivoli Storage
Manager server that
was removed, they can be migrated and backed up to another server.
If at least one other Tivoli Storage
Manager server manages
the file system, the file system is still space-managed.