we have VPLEX Metro setup with VMAX 20 behind, we created distribute virtual volume for windows servers, now I need expand one of the drive from 10G to 50G. I found out 2 ways to do this:

1. Expand the backend devices capacility on VMAX, then expand it on VPLEX at both side

2. Create new device with 50G and use data mobility migrate over.

For options 1:

my backend device on VMAX is thin TDEV (i created from unisphere create virtual volume), not meta devices. I checked VMAX document set, it told only meta device can be expanded, either stripped or concanated. So I need convert the thin TDEV to meta concanated volume then expand it, it seems this is a very long procedure and I am new to EMC storage system, not familiy with Symcli.

For options 2

To use data mobility, it must be local volume, but mine is distribute, I need break down the mirror and do the mgiraton, once migrated over and attach mirror. this looks a bit simple, but i can do this online while the drive is presented to server? where i can find details step?

or is there any other eaiser way I can achieve this.

Much appreciate any suggest.