Raid 5 Array seems intact - but I can't access it

Insight & Feedback
1

Hi, I am new to this world, having mostly worked on Wintel platforms - so am a bit out of my depth here.

I have created a Raid 5 array of 6 disks, and all has been working (mostly) OK - however today my Raid array is coming up as “Missed” all the drives are there, and if I go into the Raid configuration utility the utility says there is Raid configuration data on the drives, and the drives are all seen, and Healthy

All drives Healthy
All drives Healthy1152×648 58.5 KB

Raid 5 create
Raid 5 create1152×648 59.6 KB

Raid5 Missed
Raid5 Missed1152×648 59.1 KB

Storage
Storage1152×648 85.6 KB

. I have looked thru the topics, and it seems the array needs mounting (!?) - have downloaded the config and (hopefully) attached it. Please ignore the references to USB-Raid5 - that’s me tinkering, and it’s unplugged for the moment!

Any help much appreciated.

thanks

diskinfo.log (1.4 MB)

2

I am having a similar issue I posted about it yesterday, hopefully they look at this soon

3

I do have a question. Did it format the array in btrfs by default or did you select that format when you formatted that raid5 array?

Reason why is btrfs is not really a valid format to use in a raid5. The proper file system is ext4.

btrfs is unstable and there are linux distributions that discourage its use because its unstable.

4

I let ZimaOS format in it’s preferred format - which would have been btrfs

5

That’s interesting.

I only use ZimaOS on a small mini computer to host a few docker containers I didn’t want to host on my NAS. My NAS, I use Ubuntu Server.

in the future I’ll try changing my system drive on my NAS with a new drive with zimaOS and see if I can mount my raid5 array.

But I noticed its not using the /etc/fstab like other Linux systems. But I plan to use that file instead of mounting it through the web gui.

6

So I switched back on my USB 4 Bay enclosure I had been messing with as an expansion option, and rebooted, and my existing RAID-5 reappeared, albeit in READ ONLY mode - so as initially noted the data is still all there, and accessible, just I can no longer write to the array - any help with making my array writeable would be appreciated