Xsan 4.1 expansion fail

Hi

we were having a Xsan volume running from Mac OS 10.11.1 and we were trying to add one more Lin to the existing volume. While the process, it end with a error and the xsan pane went off. When we turn in the pane again it asks two options, to create a new San or join an existing San. We have no idea what happened to the configuration. We had a time machine back up minutes before the expansion but restoring to that and trying to start the volume it fails. We run cvfsck and get below message:

server:~ administrator$ sudo cvfsck -wv Edit

Checked Build disabled - default.

BUILD INFO:

#!@$ Revision 4.7.2 Build 564[46152] Branch Head

#!@$ Built for Darwin 15.0 x86_64

#!@$ Created on Sat Sep 19 16:48:56 PDT 2015

elapsed time: 0.06 seconds total

*Warning*: Icb has a configuration mismatch!

Icb mismatches configuration:

File System Stripegroup Count Mismatch. exp-2 rcv-3

*Fatal*: The Information Control Block (ICB) has been corrupted. Allowing

cvfsck to continue could result in permanent data loss. It is highly

recommended that you call Quantum Technical Support and request assistance.

If you would like to continue, please run this program in interactive mode

to repair the ICB.

*Critical*: File System Check finished - with errors.

cvfsck total elapsed time: 0.06 seconds total (delta 0.00 seconds)

any possibility for us to go back to original configuration...?

please advise..

thank you