Tivoli Header
Tivoli Space Manager for UNIX Using the Hierarchical Storage Management Clients
Valid on AIX GPFS file systems only
The dsmmigfs command used with the SDRreset, SDRupdate,
enableFailover, or disabledFailover parameter manages recovery
from partial system failure. One HSM client can take over from an HSM
client that is involved in a partial system failure if the following
conditions are true:
- There is one or more backup AIX SP nodes within the same GPFS node
set.
- The HSM client is installed on all of the backup nodes.
- The space-managed file system is mounted on at least one of the backup
nodes.
- The HSM client participates in failure and takeover activities for the
GPFS node set on the backup nodes where the file system is mounted.
Failover has been enabled on the HSM client node and on at least one backup
node.
Syntax
>>-dsmmigfs--+- SDRupdate-------+------------------------------><
+- SDRreset--------+
+- enableFailover--+
'- disableFailover-'
Parameters
- SDRupdate
- The dsm.opt file and the dsm.sys file are stored in the
SDR. The set of two options files in the SDR become the single, shared
set of options files for all HSM clients within the local GPFS node
set. After you update your dsm.opt or dsm.sys file, use
this command to synchronize all participating nodes within a GPFS node
set.
- SDRreset
- Do not use this command during normal operation.
The HSM client attempts to reset potential locking problems in the
SDR. If a command or a failover operation ended abnormally, this
command will help to achieve a consistent system state.
- enableFailover
- Activates the local node for failover operations within the local GPFS
node set.
- disableFailover
- Deactivates failover operations on the local node.
Examples
Task
| Command
|
Deactivate failover operations on the local node.
| dsmmigfs disableFailover
|
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