HP-UX 11i Version 1.5 Release Notes, September 2001

File and Disk Management
VERITAS Volume Manager
Chapter 4 61
VxVM Compatibility
Coexistence with HP Logical Volume Manager (LVM)
The VERITAS Volume Manager for HP-UX coexists with HP Logical
Volume Manager (LVM). With HP-UX 11i Version 1.5, LVM cannot be
used to control the root/boot disk, so if a volume manager is used for the
root disk, it must be VxVM.
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. The administrative utilities (SAM and vmsa) recognize and
identify all disks on the system.
A conversion utility, vxvmconvert (1M), is available to convert LVM
volume groups to VxVM disk groups. See the VERITAS Volume Manager
3.1 Migration Guide for more information about vxvmconvert and for a
comparison of VxVM and LVM.
Storage Administrator Graphical User Interface and SAM
The VERITAS Volume Manager Storage Administrator (vmsa) provides a
Java-based graphical user interface for managing VxVM. A command
line interface is also available. The Storage Administrator has two parts:
a server and a client. The server must run on the system running VxVM.
The client can run on the server machine, or the client software can be
installed on a different HP-UX 11i Version 1.5 (B.11.20) system to
manage VxVM remotely. Note that only HP-UX 11i Version 1.5 clients
are supported.
SAM, the HP-UX system administration manager, and Storage
Administrator exist as independent entities. The Storage Administrator
client can and should be launched from SAM. SAM is used to manage
LVM objects and the Storage Administrator is used to manage VxVM
objects. However, Storage Administrator recognizes and labels LVM
volumes and disks, and similarly, SAM recognizes and labels VxVM
volumes and disks. To manage VxVM disks graphically, you must use
Storage Administrator. For information about Storage Administrator, see
the VERITAS Volume Manager 3.1 Storage Administrator
Administrator’s Guide.
VxVM Documentation
The following VxVM documents are available in HP-UX 11i Version 1.5