HP vPars and Integrity Virtual Machines V6.1 Administrator Guide

Table 20 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.
9.1.3.6 Error messages
This section lists possible VSP and guest error messages and their description.
• VSP error messages
◦ Access error on a shared attached device
The VSP's attempt on a shared tape is denied when it is in use by any guests. Applications
receive a busy error in such cases. For example. here is the behavior of diskinfo on
a tape which is being used by a guest:
# diskinfo /dev/rtape/tape1_BEST
diskinfo: can't open /dev/rtape/tape1_BEST: Device busy
• Guest error messages
11i v3 guest — access error on a shared attached device
A guest access attempt on a shared tape is denied when it is in use by the VSP or other
guests. Applications receive a busy error in such cases. For example, here is the behavior
on diskinfo on a tape that is being used by another guest.
# diskinfo /dev/rtape/tape1_BEST
diskinfo: can't open /dev/rtape/tape1_BEST: Device busy
◦
◦ 11i v2 guest — access error on a shared attached device
A guest access attempt on a shared tape is denied when it is in use by the VSP or other
guests. Applications receive a no-device error in such cases. For example, here is the
behavior on diskinfo on a tape that is being used by another guest.
# diskinfo /dev/rmt/c7t0d0BEST
diskinfo: can't open /dev/rmt/c7t0d0BEST: No such device or address
9.1.4 vPar/VM storage implementations
This section describes the implementations of the vPar/VM storage architectures.
9.1.4.1 vPar/VM storage adapters
The AVIO storage adapter is a high performance adapter and needs guest OS drivers. AVIO
supports up to 256 storage devices per guest and also leverages the VSP 11i v3 storage stack
features to provide better storage manageability in the guest. VxVM is also supported as an AVIO
backing store.
9.1.4.2 Sample script for adding multiple devices at once
To add 256 AVIO storage devices to a vPar/VM, HP recommends that you use the hpvmcreate
and hpvmmodify commands to add multiple devices at a time using multiple -a options. Adding
114 Creating virtual storage devices