Ashutosh,
I noticed you got a core dump created, so you could open a TAC ticket to analyze it, possibly you hit a bug and may need to upgrade as well. They will ask you for the outputs you already uploaded to this thread.
You may try to do:
disk delete-data-partitions
Only caveat is when you do it you will loose all the disk data. Additionally, it will take some time for rebuilding to finish so better today after-hours
Finally, there could be some possibility of a disk failure hence you might need to replace it.
Hope this helps!
Jorge
PS: Don´t forget to rate it so other people can use it as reference in the future
