VERITAS Volume Manager 3.5 Release Notes (August 2002)

Chapter 1
VERITAS Volume Manager™ Release Notes
VERITAS VxVM 3.5 Licenses
17
Coexistence with HP Logical Volume Manager (LVM)
The VERITAS Volume Manager for HP-UX coexists with HP Logical Volume Manager (LVM). Before VxVM
3.5, the VERITAS Volume Manager could not be used to control the root/boot disk.
Both LVM and VxVM utilities are aware of the other volume manager, and will not overwrite disks that are
being managed by the other volume manager. As mentioned above, the administrative utilities (SAM and
VEA) recognize and identify all disks on the system.
Although this release is targeted at new customer installations, a conversion utility, vxvmconvert, is provided
for converting LVM volume groups to VxVM volume groups. Refer to the VERITAS Volume Manager 3.5
Migration Guide for details on using vxvmconvert.
Limitations of this Release
VERITAS Volume Manager 3.5 for HP-UX has the following limitations, which will be removed in subsequent
releases:
• Only versions A.11.13 and A.11.14 of MC/ServiceGuard and ServiceGuard OPS Edition for HP-UX 11i
will work with VERITAS Cluster Volume Manager 3.5 for HP-UX.
• Only version A.11.13 and A.11.14 of MC/ServiceGuard for HP-UX 11i will work with VERITAS Volume
Manager 3.5 for HP-UX.
• The VERITAS Volume Manager 3.5 for HP-UX now supports the HP Process Resource Manager (PRM)
product. An HP OS patch is required to be able to gather statistics on disks managed by VxVM. The patch
number was not known at the time this document was written. See Patches and Fixes in This Version for
instructions on finding the latest patches.
• A disk monitor integrated with the EMS framework is not yet available for disks being managed by
VERITAS Volume Manager 3.5 for HP-UX.
• You must use LVM to manage your cluster lock disk; you cannot use VERITAS Volume Manager for
HP-UX or VERITAS Cluster Volume Manager 3.5 for HP-UX to manage a cluster lock disk with this
release.
• The maximum number of nodes in a ServiceGuard cluster is 4 in this release of VERITAS Cluster Volume
Manager 3.5 for HP-UX.
HP is continually adding support for additional hardware and software. Contact your HP Service
Representative for information about additional support or refer to the latest edition of these Release Notes
on http://docs.hp.com. Refer to Hardware Requirements later in this document for the current list of
platforms and peripherals that are supported with VERITAS Volume Manager 3.5 for HP-UX.
Supported Migration Scenarios
The upgrade procedure allows you to retain your existing HP-UX 11.11 or HP-UX 11i VxVM configuration
when migrating to VxVM 3.5 on HP-UX 11i. After upgrading, you can resume using VxVM on the same host
with an upgraded operating system without running the vxinstall procedure. Refer to the VERITAS Volume
Manager 3.5 Installation Guide for details
Documentation
The following documents describe the VERITAS Volume Manager for HP-UX. They are available with the
VRTSdoc package which is installed by default with the HP AR0902 CD in the Base-VXVM bundle, or can be
installed from the VERITAS CD.