HP vPars and Integrity Virtual Machines V6.1 Administrator Guide

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
VSP inside the NFS-mounted file system.
NOTE: Creating a guest's backing-store files on an NFS client system (that is, VSP), 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.
9.3 Using vPars and Integrity VM storage
The following sections describe the roles of individuals accessing virtual storage, the commands
they use, and some examples of using vPars and Integrity VM storage.
9.3.1 Storage roles
This section describes the roles that individuals play in working with vPars/VM storage. Each role
has different responsibilities in using vPars/VM storage. The roles might be played by one or more
individuals depending on security requirements and skill sets. The three roles are:
• VSP administrator
• Guest administrator
• Guest user
9.3.1.1 VSP administrator
The VSP administrator role is an individual responsible for the proper configuration and maintenance
of the VSP for running vPars/VMs. As such, this person needs complete access to the VSP 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.
The VSP administrator uses the following commands to manage vPar/VM storage devices:
Integrity VM CommandManagement Function
hpvmmodify (see Section 7.4 (page 90))Add, delete, manage, and modify vPar/VM storage
devices.
hpvmstatus (see Section 11.3 (page 170))Display information about the storage devices for a
vPar/VM.
Once a resource is added or attached to a vPar/VM and the vPar/VM is powered on, the storage
resource is owned by the guest administrator. That is, the guest OS may access that storage resource
at any time. A deletion, detachment or modification fails if any guest I/O is active on the resource.
Dynamic storage changes on an active virtual machine must be approved by the guest administrator.
9.3 Using vPars and Integrity VM storage 133