The Extended Copy Service feature of VxVM works in tandem with the extended copy engines from array vendors. When VxVM detects that the source and destination devices are enabled for extended copy, VxVM automatically off loads copy requests to the array's copy manager.
The benefits of the Extended Copy Service are:
To see whether the Extended Copy Service feature is enabled on a disk, use the vxprint
command as shown in the following example. The feature is enabled if an ecopy_enabled
entry appears in the flags
line.
info: diskid=1234567890.59.vm250e1.veritas.com
assoc: device=c2t2d0s2 type=auto
flags: autoconfig ecopy_enabled
device: path=/dev/vx/dmp/c2t2d0s4
devinfo: publen=35354136 privlen=9167
Note
If required, you can use the -o noecopy
option to turn off Extended Copy Service for each invocation of the vxplex
att, cp
, mv
and snapstart
commands, and the vxsd
mv
command.