HP-UX HB v13.00 Ch-16 - iCAP
HP-UX Handbook – Rev 13.00 Page 16 (of 24)
Chapter 16 Instant Capacity (iCAP)
October 29, 2013
To remove a member from a group, issue the command
# icapmanage -r -m <member name>
To remove a group use the command
# icapmanage -r -g <groupname>
Group Manager Availability
If the active Group Manager becomes unavailable and a standby Group Manager is not defined
or not used, management of the GiCAP group is unavailable until the Group Manager is restored
or replaced. The GiCAP group members continue to operate as isolated Instant Capacity
systems, using whatever usage rights and temporary capacity they had available when the Group
Manager became unavailable. A GiCAP group member using borrowed usage rights can
continue using those usage rights. A GiCAP group member that has loaned usage rights to other
members in the GiCAP group cannot recover those usage rights until the Group Manager is
restored.
If the active Group Manager system becomes unavailable and a standby Group Manager has
previously been defined, the standby Group Manager can be used to take over GiCAP group
operations from the Group Manager.
When a member system is reconfigured by adding or deleting an nPartition, you must first
remove the system from the group, add or delete the nPartition, and then re-add the member to
the group specifying all nPartitions.
If the Group Manager is run on a partitionable system, changing the configuration of the
partitions may result in the Group Manager becoming inoperative.
When a failure occurs on a partition in an active group member, use the “icapmanage -x”
command to acquire core usage rights from the specified host to make them available to other
group members. This is known as rights seizure. The specified host must be known to the GiCAP
Group Manager (it appears in the output of the icapmanage -s command) and not currently
running. The “icapmanage -x” operation can be performed once for each hard partition on the
member.
On a system with full usage rights, the icapd daemon does not constantly verify the system
configuration. It can take up to 12 hours for each partition of a system converted from non-iCAP
to iCAP to discover that it is now an iCAP system. To force a faster conversion, kill the icapd
daemon and wait for it to restart.