Veritas Volume Manager 5.0 Release Notes (5900-0593, March 2010)

Veritas Volume Manager 5.0 Release Notes
Known Issues
Chapter 1 17
• Array Support Libraries
Release 5.0 of VxVM will attempt to detect and obsolete any pre-5.0 array support library
(ASL) packages. Once the upgrade is complete, you should not see these ASL packages in
the swlist ouput. If the upgrade fails , please use the following command to remove these
obsoleted ASL packages:
#swremove <ASL-package-name>
• HPVM Software Installation Requirements with VxVM 5.0
If VxVM 5.0 is installed on a HPVM guest system, HPVM software version 3.0 or higher is
required.
• Base-VxVM-50 must be explicitely mentioned for the proper installation of
VxVM 5.0
While upgrading from any old version of VxVM to VxVM 5.0, you must explicitly specify
the Base-VxVM-50 bundle on the command line or select the bundle name in the GUI for
a clean VxVM upgrade.
Utility Issues
• Disk group is disabled if private region sizes differ
A disk group is disabled if the vxdg init command is used to create it from a set of disks
that have pre-existing private regions differing in size. This may occur if the disks
previously belonged to disk groups in older releases of VxVM.
The workaround is to reinitialize the disks before creating the disk group (for example, by
using the vxdisk-f init command), or to use the vxdg adddisk command to add the
disks to the disk group after it has been created. [592180]
• Maximum size of a VxVM volume
VxVM supports volume lengths up to 256TB. However, any 32-bit legacy applications that
use system calls such as seek, lseek, read, and write are limited to a maximum offset
that is determined by the operating system. This value is usually 2 ^ 31 -1 bytes (1 byte
less than 2 terabytes).
• Resizing a volume set with an unmounted file system
It is not possible to use the vxresize command to change the size of a component volume
of a volume set that has an unmounted file system. This is because the extendfs
command is not supported for volume sets with unmounted file systems. [574134, 571997]
• Resizing volumes with detached remote plexes