Terastation TS-WXL - JBOD Recovery

[pkroker]

I have a TS-WXL running firmware 1.59, the drives are configured independently without RAID as JBOD . I use this Terastation as an alternate location for my take away backups off site.  Everything works correctly if I shutdown the Terastation and alternate the disks. For example  Boot with Disk 1 one week, Boot with Disk2 the other week.  If I for some reason happen to boot with both Disks in at the same time, next Time i boot the the Terastation one of the Disks always goes bad. 

 

By bad I mean it looks like it damages the partition table, because the Terastation no longer recognizes it next time I try to boot with it (the LCD screen goes red etc).  I am able to connect the "damaged"  disk to WIndows and view it's contents with UFS explorer, I am able to see all the GPT Partitions and the main XFS one with all my data.  The disk is not physically damaged, the data is all there.  If i format it again, everything goes back to normal (but I lose my data).  Is there a trick to quickly recover the partition so the Terastation can make use of it again without having to format and lose everything.  The key I imagine must be in the first GPT partition where all the tgz linux configuration files are located.  Thanks in advance.