VERITAS Volume Manager 4.1 Release Notes (5900-0591, March 2010)

VERITAS Volume Manager 4.1 Release Notes
New Features in VERITAS Volume Manager 4.1
Chapter 1 13
In this release, two temporary file systems are mounted for use by DMP. When they are
mounted, output from the df command is similar to the following:
# df
Filesystem Kbytes Used avail Capacity Mounted on
...
dmpfs 902488 0 902488 0% /dev/vx/rdmp
dmpfs 902488 0 902488 0% /dev/vx/dmp
• Default Disk Format
With the introduction of the Cross-Platform Data Sharing (CDS) feature, the format for a
disk defaults to CDS rather than to simple, which was the format in earlier releases. In
addition, the simple disk format has been renamed as hpdisk. For instructions on
converting from a CDS format disk to a hpdisk format disk, see the Creating and
Administering Disk Groups chapter in the VERITAS Volume Manager Administrator’s
Guide. The section, Creating a disk Group, includes information on disk formats and disk
group formats.
CDS does not normally require an Add-on license, however if you want to import a disk
group from a platform that is different from your own platform, you will need an Add-on
license.
CDS disk groups have certain physical disk alignment restrictions for subdisk. For more
information on this feature and CDS disk groups in general, see the VERITAS Storage
Foundation 4.1 Cross-platform Data Sharing Administrator’s Guide
A further change in this release is that the default disk type is now auto. This means that
disks that used to show up in the output from vxdisk list as simple will now showup as
auto:hpdisk.