divStar

Actually after a few things back and forth I found a thread where a user suggested, that if a whole drive (e.g. /dev/sdd) is formatted with extra or even xfs (I tested both today), it will NOT be mountable, because it seems to search for logical? partitions (e.g. /dev/sdd1) and if that one is present, then it works with Unassigned Devices Plugin. So I actually formatted the backup drive today using unRAID (and xfs), went back to Ubuntu, copied everything from the mdadm raid set up back to the disk (which - by the way - showed up as /dev/sd*1) and once that was done, moved back to unRAID, cleared the HDDs and made an array. The backup disk is now perfectly mountable. I am not sure why it is crucial to have /dev/sd*x instead of just /dev/sd*, but I got my issue solved.

Hello, I am new to unRAID. Is there a way to have a single drive be used without reformatting it for backup purposes? It probably needs to be exposed in some way for backup software (that I would run by using a docker image) to be able to read/write to/from it. My current configuration is: 2* 3TB drives as an array, 1* 3TB drive as parity, 2 SSDs as (perhaps mirrored) parity and I'd like to have a single 6TB drive as backup. I also want to restore all the data from it once the array is built. The file system on the backup drive is (from what I remember) extfs4. If there is a way, how would I go about it? Thank you very much in advance for your help!