Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

with the LVM and MirrorDisk/UX products today, including the following
capabilities:
■ Veritas Volume Manager can coexist with LVM. Users can decide which volumes
they want managed by each volume manager. For users who want to migrate
LVM volume groups to VxVM disk groups, a conversion utility is included.
The vxvmconvert utility is used to convert LVM to VxVM.
See “About LVM to VxVM conversion” on page 400.
■ Veritas Volume Manager is available for installation with all HP-UX 11i Version
3 operating environments.
See the Storage Foundation Release Notes for additional details of the features
that are supported in this release.
■ Veritas Volume Manager can be used instead of LVM to manage the root disk.
Basic volume management capabilities are included in the operating system.
■ Veritas Volume Manager is integrated with HP ServiceGuard and ServiceGuard
OPS Edition for High Availability, but requires a specific version of the
ServiceGuard products. Refer to the Release Notes for details about the required
version number, as well as the availability of specific features in your release.
Notable features of VxVM
The Veritas Volume Manager provides many features, some of which are not
available with LVM or MirrorDisk/UX. This section describes notable VxVM
features.
See the Storage Foundation Release Notes for additional details of the features
that are supported in this release.
See other Veritas Volume Manager documentation for additional details about
using these features.
Veritas Volume Manager includes the following features:
■ Concatenation, the combining of discontiguous disk regions into virtual devices.
■ Spanning, concatenation across different physical media.
■ Striping, distribution of storage mappings for a virtual device so that
multi-threaded accesses tend to cause even use of all physical media.
■ The Veritas Enterprise Administrator (VEA), which is a JAVA-based GUI for
VxVM.
■ Dynamic Multi-Pathing (DMP) for Active/Passive and Active/Active devices.
DMP provides higher availability to data on disks with multiple host-to-device
pathways by providing a device path failover mechanism. If one connection
Offline data migration
About VxVM and LVM
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