Veritas Volume Manager 5.1 SP1 Release Notes HP-UX 11i v3 (5900-1518, August 2011)

1 Veritas Volume Manager 5.1 SP1 Release Notes
This chapter discusses new features, licenses, system requirements, compatibility with previous
releases, and known problems with Veritas Volume Manager (VxVM) 5.1 Service Pack 1 (SP1)
which is supported on systems running HP-UX 11i v3.
This chapter addresses the following topics:
• “Product Description”
• “New Features in this Release”
• “System Requirements”
• “Product Licensing”
• “VEA Graphical User Interface and System Management Home Page (SMH)”
• “Coexistence with HP Logical Volume Manager (LVM)”
• “Unsupported Features” (page 11)
• “Limitations of VxVM 5.1 SP1 on HP-UX 11i v3”
• “Known Problems And Workarounds”
Product Description
Veritas Volume Manager is a storage management tool that removes the physical limitations of
disk storage so that you can configure, share, manage, and optimize storage I/O performance
online without interrupting data availability. VxVM also provides easy-to-use, online storage
management tools to reduce planned and unplanned downtime.
The Cluster Volume Manager (CVM) allows up to 32 nodes in a cluster to simultaneously access
and manage a set of disks under VxVM control (VM disks). The same logical view of disk
configuration and any changes to this is available on all the nodes. When the cluster functionality
is enabled, all the nodes in the cluster can share VxVM objects such as shared disk groups. Private
disk groups are supported in the same way as in a non-clustered environment.
Currently, VxVM 5.1 SP1 is available on independent media only but may later be integrated into
the HP-UX 11i v3 Operating Environment.
New Features in this Release
New features included in VxVM 5.1 SP1
The following new features are supported in VxVM 5.1 SP1 on the HP-UX 11i v3 operating system:
• Veritas Volume Manager persisted attributes
Starting with the VxVM 5.1 SP1 release, the vxassist command allows you to define a set
of named volume allocation rules, which can be referenced in volume allocation requests.
This command also allows you to record certain volume allocation attributes for a volume.
These attributes are called persisted attributes. You can record the persisted attributes and use
them in later allocation operations on the volume, such as increasing the volume.
• Automatic recovery of volumes during disk group import
VxVM 5.1 SP1 allows automatic recovery of volumes during disk group import. After a disk
group is imported, disabled volumes can be enabled by default. To control the recovery
behavior, use the vxdefault command to turn on or off the autostartvolumes tunable.
If you turn off the automatic recovery, the recovery behaves the same as in previous releases.
This behavior is useful if you want to perform some maintenance after importing the disk group,
and then start the volumes. To turn on the automatic recovery of volumes, specify
4 Veritas Volume Manager 5.1 SP1 Release Notes