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

Veritas Volume Manager 5.0 Release Notes
Known Issues
Chapter 1 19
The mirror is added, but the log is silently omitted. To add a log and a mirror, add
them in two separate vxassist invocations, as follows:
# vxassist mirror volume ...
# vxassist addlog volume ...
7. Using vxdiskadm to replace a failed disk
The vxdiskadm command requires two attempts to replace a failed disk. The first
attempt can fail with a message of the form:
/usr/lib/vxvm/voladm.d/bin/disk.repl: test: argument expected
The command is not completed and the disk is not replaced. If you now re-run the
command, the replacement successfully completes.
8. Replacement of the old_layout attribute
The vxdisksetup command gives the error message Attribute unrecognized when the
old_layout attribute is used to make a disk into a VxVM controlled disk. The
old_layout attribute is no longer supported. Use the noreserve attribute
instead.[i121258]
9. Using vxvol and vxmend with layered volumes
The vxvol and vxmend commands do not handle layered volumes well. When vxmend
is executed on the top level volume to change the state of a volume, it is executed only
on the top level volume; the change is not propagated to the lower level volumes. As a
result, the volume states can become inconsistent and a subsequent vxvol init
command might fail.
The vxvol command also exhibits the same problem. When a vxvol init command is
executed on the top level volume, the change is not propagated to the volumes
corresponding to its subvolumes.
Workaround:
When executing the vxvol or vxmend command on a layered volume, first issue the
command to the lower level volumes in a bottom-up fashion; then execute the
command on the top-level volume.
In this example, a volume (vol) has two subvolumes (vol-L01 and vol-L02). The state of
the volumes is first set to empty, and then the initialization commands are executed:
# vxmend -o force -g mydg fix empty vol
# vxmend -o force -g mydg fix empty vol-L01
# vxmend -o force -g mydg fix empty vol-L02
# vxvol -g mydg init zero vol