ServerNet Cluster Manual

Upgrading a ServerNet Cluster
ServerNet Cluster Manual—520575-003
4-50
Fallback for Upgrading Software to Obtain G06.14
Functionality
Fallback for Upgrading Software to Obtain
G06.14 Functionality
Use this procedure if you upgraded a cluster to G06.14 functionality and you now need
to restore the ServerNet II Switch firmware and configuration files to an earlier version
(G06.12, for example). This procedure uses one of the nodes to restore the old
configuration files. The other nodes can continue operating as members of the cluster.
Choose a node from which to reconfigure the cluster switches, and use the system
console for that node to complete the following steps. (If you are falling back to a split-
star topology, you must choose a node for each of the two star groups in the cluster.)
1. If the cluster is connected in a tri-star topology, follow one of the procedures in
Fallback for Merging Clusters to Create a Tri-Star Topology on page 4-89 to
disconnect the two-lane links.
2. Use DSM/SCM to retrieve T0569AAB (or T0569AAA) from the archive so that you
have access to the M6770 and M6770CL firmware and configuration files.
3. Use the Configuration Update action of the TSM Service Application to download
the T0569AAB (or T0569AAA) M6770CL configuration to the nearest X-fabric
cluster switch. For detailed steps, refer to Using the TSM Service Application to
Download the ServerNet II Switch Firmware or Configuration on page 4-99.
4. If you need to fall back to earlier firmware, use the TSM Service Application to
download the T0569AAB (or T0569AAA) M6770CL configuration to the nearest X-
fabric cluster switch. For detailed steps, refer to Using the TSM Service Application
to Download the ServerNet II Switch Firmware or Configuration on page 4-99.
Otherwise, skip this step.
Note. HP does not recommend backing out the firmware. T0569AAE firmware supports all
topologies on all RVUs and includes significant defect repair. If you must fall back to earlier
firmware for any reason, you must download the T0569AAB (or T0569AAA) M6770 firmware
file. In addition, you must power cycle the ServerNet II Switch subcomponent of the cluster
switch if you fall back to T0569AAB (or T0569AAA).
Note. The following considerations apply when downloading the T0569AAA configuration:
•
Downloading the configuration disrupts ServerNet communications across the X-fabric
cluster switch.
•
The T0569AAA configuration does not support Configuration 2 (0x10001). If the
cluster switch uses Configuration 2, you must change the configuration tag to
Configuration 1 (0x10000) in order to download the T0569AAA configuration. The
guided procedure allows you to change the configuration tag.