IBM SG24-5131-00 User Manual
Cluster Management and Administration
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INACTIVE_TAKEOVER flag set to false and has not yet started because its
primary node is down.
primary node is down.
In general, however, only rotating resource groups should be migrated in a
non-sticky manner. Such migrations are one-time events and occur similar to
normal rotating resource group flavors. After migration, the resource group
immediately resumes a normal rotating resource group failover policy, but
from the new location.
non-sticky manner. Such migrations are one-time events and occur similar to
normal rotating resource group flavors. After migration, the resource group
immediately resumes a normal rotating resource group failover policy, but
from the new location.
8.5.3.2 Locations
You can specify the location for a resource group by entering a node name or
a keyword.
You can specify the location for a resource group by entering a node name or
a keyword.
Node Name
In most cases, you enter a node name in the location field to specify which
node will contain sticky or non-sticky resource groups. Node names can be
arbitrary and apply to both rotating and cascading resource group
configurations.
In most cases, you enter a node name in the location field to specify which
node will contain sticky or non-sticky resource groups. Node names can be
arbitrary and apply to both rotating and cascading resource group
configurations.
The DARE Resource Migration utility also provides the following special
keywords you can use in the location field to determine the placement of
migrated resource groups:
keywords you can use in the location field to determine the placement of
migrated resource groups:
default
and
stop
. The
default
and
stop
locations
are special locations that determine resource group behavior and whether the
resources can be reacquired.
resources can be reacquired.
Default Location
If you use the
If you use the
default
keyword as the location specifier, the DARE Resource
Migration utility removes all previous stickiness for the resource group and
returns the resource group to its default failover behavior where node
priorities apply (for either cascading or rotating resources). The use of a
default destination for a cascading resource group returns it to its normal
behavior (the resource group will migrate to the highest priority node currently
up). Using a default destination for a rotating resource group releases the
group from wherever it resides and lets the highest priority node with a boot
address reacquire the resource.
returns the resource group to its default failover behavior where node
priorities apply (for either cascading or rotating resources). The use of a
default destination for a cascading resource group returns it to its normal
behavior (the resource group will migrate to the highest priority node currently
up). Using a default destination for a rotating resource group releases the
group from wherever it resides and lets the highest priority node with a boot
address reacquire the resource.
The
cldare
command attempts to perform all requested migrations
simultaneously. If, for some reason, the command cannot simultaneously
cause all specified resources to be released and cannot simultaneously
reacquire them at the new locations, it fails, and no migrations occur.
cause all specified resources to be released and cannot simultaneously
reacquire them at the new locations, it fails, and no migrations occur.
Note