HP-UX Virtual Partitions Administrator's Guide (includes A.03.04) (previously titled Installing and Managing HP-UX Virtual Partitions)

CPU, Memory, and I/O Resources (A.05.xx)
Memory, CPU: Canceling Pending Operations
Chapter 6
236
Online float memory addition or deletion can take significant time or even fail if the target virtual partition is
under memory pressure. Use vmstat or other virtual memory monitoring tools to check the memory pressure
on the target partition. In particular, if you are deleting float memory, make sure the target virtual partitions
is not under memory pressure.
Cancel Pending Usage
To use the cancel pending feature:
1. Determine which vPar has the pending operation, and acquire the sequenceID.
• If necessary, use vparstatus to determine which vPar has the pending operation.
For example:
keira1# vparstatus
...
[Resource OL* Details]
[Virtual Partition Resource Summary]
# User # User
Virtual Partition Name Ranges/MB Total MB Ranges/MB Total MB
============================== ====================== ======================
keira1 0/ 0 2560 0/ 0 0
keira2 1/ 128 4352p 1/ 128 640p
keira3 0/ 0 1224 0/ 0 0
The vparstatus output shows that a pending online addition of memory is occurring on keira2.
• Use the vparstatus -v option to acquire the sequenceID.
For example:
keira1# vparstatus -p keira2 -v
...
[Resource OL* Details]
Sequence ID: 1234
Operation: Memory Addition
Status: PENDING
The vparstatus output shows that a pending online addition of memory has been assigned the
sequenceID of 1234.
2. To cancel this pending operation, use the -C sequenceID option of the vparmodify command.
For example:
keira1# vparmodify -p keira2 -C 1234
NOTE
• For a given virtual partition, the vPars memory and CPU online modification requests
(vparmodify) are processed serially; in other words, a subsequent operation on the same
virtual partition cannot begin until the current modification has been successfully completed
or canceled.
When using the -C sequenceID operation, you can cancel only the current (pending)
operation.