Thanks Pascal, Pascal Hambourg wrote:
> Le 10/11/2017 à 09:12, deloptes a écrit : >> >> >> It looks like the new style raid > > Indeed, superblock format 1.x. In addition to the "array UUID" which is > common to all members of the array, it adds a specific "device UUID" for > each member. blkid labels it "UUID_SUB". > >> However this raid was created ~12y ago without metadata. > > I don't think so. If the array was created without metadata, blkid would > not report the members as TYPE="linux_raid_member". It was rather > probably created with the old metadata format 0.90. You can check with > > mdadm --examine /dev/sd[fg]1 Indeed Creation Time : Mon Jul 26 21:49:51 2010 means data was migrated to those disks, which were assembled 2010 - data dates back to 2002. Seagate is definitely older than 2010. Anyway, thanks for the snip - useful! So if you know if in this context I have real RAID - I mean data is written to both drives? It would be nice, though I decided already to replace 2x1G+2x0.5G for 2x2G - wife blessed the budget :) regards
