Hello!
If you convert the volume the WWN, name and exported vLUN will stay the same, the Udid will most likely change though, but Solaris probably won't care/notice.
An 8200 is classed as a bit too weedy for compression but should be OK for light data loads (see what your CPU load is before and after, it would be interesting).
- HPE engineering only gave us the green light to install 3.3.1 on our 8400/8200 systems if we promised not to use compression.
You can do a compression estimate with the "checkvv -dedup_compr_dryrun <volumename>" command, might give you an idea of how long the actual compress would take.
Keep us all posted on how it goes, stats are always interesting
Mark