Veritas Storage Foundation Cross-Platform Data Sharing 5.0 AdministratorÆs Guide, HP-UX 11i v3, First Edition, May 2008

38 Maintaining your system
Additional considerations when importing CDS disk groups
Additional considerations when importing CDS disk
groups
Before you attempt to use CDS to move disk groups between different operating
systems, and if the configuration of the disks has changed since the target
system was last rebooted, you should consider the following points
:
Does the target system know
about the disks?
For example, the disks may not have been connected
to the system either physically (not cabled) or logically
(using FC zoning or LUN masking) when the system
was booted up, but they have subsequently been
connected without rebooting the system. This can
happen when bringing new storage on-line, or when
adding an additional DMP path to existing storage. On
the target system, both the operating system and
VxVM must be informed of the existence of the new
storage. Issue the appropriate command to tell the
operating system to look for the storage. (On Linux,
depending on the supported capabilities of the host
adapter, you may need to reboot the target system to
achieve this.) Having done this, run either of the
following commands on the target system to have
VxVM recognize the storage:
# vxdctl enable
# vxdisk scandisks
Do the disks contain partitions or
slices?
Both the Solaris and Linux operating systems
maintain information about partitions or slices on
disks. If you repartition a disk after the target system
was booted, use the appropriate command to instruct
the operating system to rescan the disk’s TOC or
partition table.
Having done this, run either of the following
commands on the target system to have VxVM
recognize the storage:
# vxdctl enable
# vxdisk scandisks