VERITAS Storage Foundation 4.1 Release Notes

VERITAS Storage Foundation Release Notes
Software Issues
35
Warning Message when Taking a Snapshot of a SFCFS File System
When taking a snapshot of a SFCFS file system, the following warning message might appear:
VxVM vxio WARNING V-5-0-4 Plex plex detached from volume volume
Workaround: No action is required. This behavior is normal and is not the result of an error
condition.
File System Check of a Snapshot
Normally, a file system would have no work to do when a snapshot is taken. However, if an SFCFS
file system is not mounted, it is likely that the fsck of the snapshot will take longer than is usually
necessary, depending on the I/O activity at the time of the snapshot.
Workaround: When taking a snapshot of an SFCFS file system, you should ensure that at least
one of the volumes defined in the command line is mounted on the cluster master.
Mount Operation Can Cause Inconsistencies in Snapshots
Inconsistencies can arise in point-in-time copies if any of the following snapshot operations are
performed on a volume while a file system in the volume is being mounted: vxassist
snapshot, vxplex snapshot, vxsnap make, vxsnap refresh, or vxsnap restore.
Intelligent Storage Provisioning Issues
Creating Application Volumes
To create application volumes successfully, the appropriate licenses must be present on your
system. For example, you need a full VERITAS Volume Manager and a VERITAS FlashSnap
license to use the instant snapshot feature. Vendors of disk arrays may also provide capabilities that
require special licenses for certain features of their hardware. [i137185]
Miscellaneous Issues
Auto-import of Disk Groups
If a disk that failed while a disk group was imported returns to life after the group has been
deported, the disk group is auto-imported the next time the system boots. This contradicts the
normal rule that only disk groups that are (non-temporarily) imported at the time of a crash are
auto-imported.
If it is important that a disk group not be auto-imported when the system is rebooted, the disk group
should be imported temporarily when the intention is to deport the disk group (for example, in HA
configurations). Use the -t flag to vxdg import. [i13741]