iLOM Snapshot not working?

Exadata storage cells were upgraded to :-

Kernel version: 2.6.39-400.250.4.el6uek.x86_64 #1 SMP Tue Jun 2 14:50:33 PDT

Cell version: OSS_12.1.2.1.2_LINUX.X64_150617.1

Cell rpm version: cell-12.1.2.1.2_LINUX.X64_150617.1-1.x86_64

Active image version: 12.1.2.1.2.150617.1

Active image activated: 2015-10-26 08:44:23 -0500

Active image status: success

Active system partition on device: /dev/md5

Active software partition on device: /dev/md7

Cell boot usb partition: /dev/sdac1

Cell boot usb version: 12.1.2.1.2.150617.1

now  ./sundiag.sh snapshot does not work, it just hangs there and I have to cancel it.

Any thoughts?

Thanks