HP -UX 11i Installation And Update Manual page 105

Problem
updating an
MC/ServiceGuard
cluster
ioscan -kf | egrep '(10140078)|(1133b921)'
If one or both cards are installed, ioscan will output one or more rows
containing the numbers 10140078 or 1133b921.
Be sure to remove those cards before updating to 11i.
Changed PPA (Physical Point of Attachment) values in the Auto-Port
Aggregation software product may cause problems during a rolling
update to an MC/ServiceGuard cluster.
After an HP-UX system upgrade from 11.0 to 11i (including installation
of version B.11.11.00 of the Auto-Port Aggregation (APA) software, HP
J4240A), the PPA values of existing link aggregates will be changed from
1 xx to 9 xx where xx is the link aggregate number. This change is
designed for compatibility with the existing system's network
configuration files such as /etc/rc.config.d/netconf. Although the change
will not affect the system's network connectivity, it inadvertently causes
problems with MC/ServiceGuard cluster software when there is a cluster
currently configured on the system. Specifically, the MC/ServiceGuard
cmrunnode command will hang while an upgrading node is trying to join
the existing cluster.
This problem will appear only during a rolling upgrade of a cluster that
uses LAN cards configured with APA software. You can fix the problem
by applying ServiceGuard 11.09 patch PHSS_22683, available from HP
Support, and then performing a binary file conversion, as explained later.
HP-APA (Auto-Port Aggregation, HP J4240A) is a networking technology
that groups multiple physical fast Ethernet or multiple physical Gigabit
Ethernet ports into a logical link aggregate. The technology can provide
greater bandwidth for a logical network link, load balancing between
physical links, automatic fault detection and recovery for environments
which require high availability.
PPA stands for physical point of attachment. This is a unique network ID
assigned to each network interface in a system. In HP-UX 11i, it is
equivalent to the card instance number. Since APA link aggregates are
logical network interfaces, there is no hardware information associated
with the interfaces. Thus their PPA values are in fact hard-coded.
For more information about HP-APA, refer to the HP Auto-Port
Aggregation Release Notes.
Verify the Problem: If you have an existing MC/ServiceGuard cluster
configured with APA link aggregates, and are planning to perform a
Appendix B
In Case of Trouble
Common Update Problems
105