In old versions of VXVm you cannot use emcpower devices with vxdisksetup.
use vxdisk -e list to view the the cXtYdZ name related to emcpower.
For example
Quote:
bash-2.05# vxdisk -e list
DEVICE TYPE DISK GROUP STATUS c#t#d#_NAME
[...]
emcpower0 sliced - - error c4t50060E800043BBE0d4s2
emcpower1 sliced - - error c4t50060E800043BBE0d3s2
in this case the emcpower0 is c4t50060E800043BBE0d4s2
you can try
vxdisksetup -i c4t50060E800043BBE0d4
Note that I exclude the "s2" at end of command
I hope that useful for you.