HP-UX vPars and Integrity VM V6.3 Administrator Guide

Table 13 Patch dependencies for AVIO attached devices
NotesGuestVSPHP-UX VersionPatch Number
Hard
1
dependency for
guest, and soft
2
dependency for VSP.
YesYes11i v3PHKL_38604
Soft dependency on
VSP.
NoYes11i v3PHKL_38605
Recommended patch.YesYes11i v3PHKL_38750
1
Enforced during swinstall.
2
Required only if attached devices are configured. No enforcement using swinstall.
6.4.2.5 NFS-Mounted backing stores
vPars and Integrity VM supports NFS-mounted backing stores for use as root file system (that is,
boot), swap, dump, and as data LUNs. The following configuration requirements apply for NFS
mounted backing stores:
• NFS-mounted files cannot be used as file-backed virtual DVD drives.
• The maximum number of NFS-mounted backing stores per guest is four.
• NFS-mounted backing stores are supported only for HP-UX 11i v3 guests.
• The following NFS mount options must be used by the VSP when mounting an NFS file system
housing the backing-store files of a guest:
◦ NFS Version 3
◦ TCP
◦ Hard
◦ IPv4 address or server host names mapping to IPv4 address
• The Integrity VSP (NFS client) and the NFS server systems must reside in the same IP subnet.
• OVMM is supported for VMs using NFS-mounted backing stores. For OVMM to be successful,
both Integrity VSPs must mount the NFS file system housing the backing-store files of the guest
using the identical syntax and mount options. Both the source and target VSPs must have the
NFS file system mounted at the time of migration.
Following limitations apply to NFS-mounted backing stores:
• The use of symbolic links on the NFS server to redirect the location of the backing-store files
of the guest is not allowed. However, symbolic links are still allowed inside the guest booted
with an NFS backing store.
• Management of Integrity VM guests configured with NFS-mounted backing stores is not
supported with the management applications. For more information about backing store
requirements for individual products in the Matrix OE suite, see Chapter 14 (page 255).
When creating NFS-mounted backing-store files, HP recommends that you create these files locally
on the NFS server, if possible. You can use either the hpvmdevmgmt command, if available on
the NFS server, or the dd command. For example, to create an 80 GB file on an HP-UX NFS server
as a guest backing store in the shared directory called /export, use either of the following
commands:
/opt/hpvm/bin/hpvmdevmgmt -S 80G /export/vm1.boot
/usr/bin/dd if=/dev/zero of=/export/vm1.boot bs=1024K count=80000
If local access to the NFS server is not available, you can use these same commands on the VSP
inside the NFS-mounted file system.
6.4 Configuring vPar and VM guest storage 89