Disaster on a readynas 314 - need advice please

The safe mode in 6.9.3 should just make it easier to diagnose as it would boot up into a state where you could do things like check the SMART stats.

Your logs show that the disk in drive bay 4 has a current pending sector count of 37.

It's important to check your disk health before adding a disk or replacing a disk.

You should contact support.

mdgm,

I've contacted support 4 times and tbh, I repeat myself everytime and haven't really got anywhere at all.

I will continue at it but was hoping to ask, whether you think reinstalling the OS on just the 3 drives is any use.

Let me know your case number and I can arrange for your case to be reviewed.

No. Re-installing the OS only helps in some rare cases where installing the OS over the top of itself and/or resetting some network settings and the admin password would resolve a problem.

Thanks MDGM.

I ended up finding out the original order of the 3 drives (support told me this was important), I didnt know. Put the drives back in and boot menu'ed (with extreme difficulity), finally getting it to boot the original degraded RAID5 volume. I let it resync, and it worked.

I am now in the process of copying a million+ files onto the new HDD to make a backup (so not out of the woods yet).

The only issue I had now was I tried to copy a 1TB folder using the web interface (which seems to be buggy) and while it was copying I was trying to change a different shares name where it errored. I had to restart the NAS. 

Anyway I have lost two shares now off the original RAID5 volume. They have just disapearred but the data usage is still there in the volume information. I cannot access via web interface or my windows mapping. Any ideas?

Seeing you're working with support it's probably best to continue working with them.

If you let me know your case number I can arrange for your case to be reviewed.