Hi Joe, thank you for the mesage
Joe Pfeiffer wrote: > This is normal. It's the identical UUIDs that tell the system that the > partitions go into the same RAID array. > > Here's what I see when I look at my RAID disks: > > /dev/sda2: UUID="67d3c233-96a0-737c-5f88-ed9b936ea3ae" > UUID_SUB="48b56869-6f19-21b9-283f-3eee3ac90cf8" LABEL="snowball:1" > TYPE="linux_raid_member" PARTUUID="3bb3729a-528b-4384-b6a5-b6d9e148ed2a" > /dev/sdb2: UUID="67d3c233-96a0-737c-5f88-ed9b936ea3ae" > UUID_SUB="1f48f805-4173-78cd-1f52-957920f66335" LABEL="snowball:1" > TYPE="linux_raid_member" PARTUUID="1bdd3893-9346-49d2-8292-a61075ad0c5e" > you see in your case PARTUUID is different for both members. In my case it is identical and this is what is bothering me > and here's the relevant line in my /etc/mdadm/mdadm.conf > ARRAY /dev/md/1 metadata=1.2 UUID=67d3c233:96a0737c:5f88ed9b:936ea3ae > name=snowball:1 > It looks like the new style raid (I don't recall in which version it was introduced). However this raid was created ~12y ago without metadata. > But... if this data is that important, you should be running backups. > RAID is to keep you running if a disk fails, it isn't to keep you from > losing data. Indeed this is true - I make backups but not that often as data changes not that often, however it might be good idea to run on regular bases. I guess I'll have to sit over the weekend and make a plan. thanks regards