ReadyNas 104 stuck in read only mode

Hi Folks,

Hoping for some help here.  My issue started with an alert on a disk 1 failure, a day after that the NAS froze up and the only way to reboot it was to power cycle the system.  After that it would not start and and displayed "Failed to startup" on the LCD.  I tried an OS reinstall...no luck.  I finally got it breathing again by doing a USB boot with the latest firmware.  The updated the system from 6.25 to 6.4.1.  The system now starts up and the failure on disk 1 now shows as healthy.  However, I am unable to write to my shares or make any system changes like creating new shares, deleting old ones, install/update apps or access my iscsi luns.

One odd thing is my volume data shows 2MB while I have 2.41 TB free and 588 GB used in snapshots....so it looks like something is messed up there?

Has anyone run into something similar and know how I can get this up and running properly again?  My most important data is on my iscsi luns and I really need to get to that asap.  Thanks for any help you can provide.