HP P6000 Continuous Access Software - Manual (Page 141)

•
Veritas file system (VxFS) is supported. HFS file system is not supported.
•
The following resize operations are not supported when using LVM:
Extend logical volumes in native LVM Volume Groups with mirrored, striped, or contiguous
logical volumes. ◦
◦ Extend logical volumes in native LVM Volume Group when VG is cluster aware (activated
in shared or exclusive mode).
◦ Extend logical volumes in native LVM Volume Group using PV that is not allocatable
(includes spare PVs and PVs in read-only mode).
Shrink support? Extend support? Host volume configuration
HP-UX 11.31
None Manual
1
(offline
2
only) LVM and Veritas online JFS
Policy
3
and manual
1
(online) Policy
3
and manual (online) Non-LVM and Veritas online JFS
None Manual
1
(offline
2
only) LVM and VxFS without online JFS.
None Manual 1 (offline 2 only) Non-LVM and VxFS without online JFS.
None None VxVM
None None HFS filesystem
HP-UX 11.23
None Manual
1, 4
(offline
2
only) LVM and VxFS with or without online
JFS
Manual
1
(offline
2
only) Manual
1
(offline
2
only) Non-LVM and VxFS with or without
online JFS
None None VxVM
None None HFS filesystem
1
When performing a manual extend or shrink, the operation is executed immediately. No policy is created when performing
a manual operation.
2
If the host volume is not part of a volume group, taking it offline involves unmounting it. If the host volume is part of a
volume group, taking it offline involves unmounting it and deactivating the volume group.
3 Policies are supported only for single virtual disk host volumes.
4 Requires installation of the vgmodify tool. This tool is part of the HPUX patch PHCO_35524 for 11.23.
VMFS requirements and considerations
•
Only extend is supported with VMFS.
•
Support is provided only for host volumes on basic disks on VMFS volumes. Dynamic disks
are not supported.
•
Support is provided only for host volumes created on LUNs from the same storage system.
Selecting the proper dynamic capacity policy thresholds
When setting a dynamic policy, the following guidelines apply:
•
Use an extend threshold of 75% or greater.
•
Use a shrink threshold of 35% or less.
•
Use an increment value of approximately 10% of the current host volume size. For example,
if the current size is 50 GB use an increment value of 5 GB.
Host volume concepts 141