You can add SAN Volume Controller 2145-8A4 nodes
to your cluster.
This task requires
that the following conditions
are met:
- The cluster software version is 4.3.1 or higher
- All
nodes that are configured in the cluster are present
- All errors
in the cluster error log are fixed
- All managed disks (MDisks)
are online
- Install the SAN Volume Controller 2145-8A4 nodes
and the 2145 UPS-1U units
in the rack.
- Connect the SAN Volume Controller 2145-8A4 nodes
to the LAN.
- Connect the SAN Volume Controller 2145-8A4 nodes
to the SAN fabric.
- Power on the SAN Volume Controller 2145-8A4 nodes
and the 2145 UPS-1U units.
- Zone the SAN Volume Controller 2145-8A4 node
ports in the existing SAN Volume Controller zone.
The SAN Volume Controller zone
exists in each fabric with only node
ports.
- Zone the SAN Volume Controller 2145-8A4 node
ports in the existing SAN Volume Controller and
storage zone. A storage zone contains
all of the SAN Volume Controller 2145-8A4 node
ports and controller ports that are
in the fabric and used to access the physical disks.
- For each system that is used with the SAN Volume Controller cluster,
use the system management application
to map the LUNs that are currently used by the cluster to all of the
WWPNs of the SAN Volume Controller 2145-8A4 nodes
that you want to add to the cluster.
The SAN Volume Controller 2145-8A4 nodes
must recognize the same LUNs that
the existing nodes in the cluster can recognize before they can be
added to the cluster. If the SAN Volume Controller 2145-8A4 nodes
cannot recognize the same LUNs, the
system is marked degraded.
- Add the SAN Volume Controller 2145-8A4 nodes
to the cluster.
- Check the status of the systems
and MDisks to ensure that
status has not been marked degraded. If the status is degraded, there
is a configuration problem that must be resolved before any further
cluster configuration tasks can be performed. If the problem cannot
be resolved, remove the newly added SAN Volume Controller 2145-8A4 nodes
from the cluster and contact the IBM® Support
Center for
assistance.