HP Integrity Virtual Machines 4.3: Installation, Configuration, Administration

The following limitations apply to this release of the NFS-mounted backing stores feature in
Integrity VM V4.3:
• Integrity VM guests configured with NFS-mounted backing stores cannot be integrated with
Serviceguard as either a package (VM-as-an-SG-Package) or node (VM-as-an-SG-Node).
• The use of symbolic links on the NFS server to redirect the location of a guest's backing-store
files is not allowed. However, symbolic links are still allowed inside the guest booted with
an NFS backing store.
• NFS file systems housing a guest's backing stores must be mounted using IPv4. Mounting
NFS backing stores using IPv6 is not allowed at this time.
• Management of Integrity VM guests configured with NFS-mounted backing stores is not
supported with the following management applications:
— Logical Server Manager (LSM) 6.2
— HP Infrastructure Orchestration (HPIO) 6.2
— HP Insight Software 6.2
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 on 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 the local access to the NFS server is not available, you can use these same commands on the
VM Host inside the NFS-mounted file system.
NOTE: Creating a guest's backing-store files on an NFS client system (that is, VM Host), can
take significantly longer to complete than creating the backing-store files locally on the NFS
server directly. Therefore, create a guest's backing-stores files directly on the NFS server, if
possible.
6.3 Using Integrity VM Storage
The following sections describe the roles of individuals accessing virtual storage, the commands
they use, and some examples of using Integrity VM storage.
6.3.1 Integrity VM Storage Roles
This section describes the roles that individuals play in working with Integrity VM storage. Each
role has different responsibilities in using Integrity VM storage. The roles might be played by
one or more individuals depending on security requirements and skill sets. The three roles are:
• “VM Host Administrator” (page 113)
• “Guest Administrator” (page 115)
• “Guest User” (page 116)
6.3.1.1 VM Host Administrator
The VM Host administrator role is an individual responsible for the proper configuration and
maintenance of the VM Host for running virtual machines. As such, this person needs complete
access to the VM Host to install hardware and software. This person also needs to understand
how to do HP-UX system maintenance, how to configure hardware properly, and how to set up
and use various software applications and tools.
6.3 Using Integrity VM Storage 113