barryfjohnson

The backup finished without issue. I unmounted the disk and moved it to my Windows PC. I validated the data (1941 Movies) was good. I appreciate all the good advice, as usual when I do a UnRaid project, I learn a lot. Thank you!

Sorry there are about 11TB total to copy to the new 24TB RAID 0 array in the external box.

Just as an update. I stuck a 2TB disk as an UD and formatted it as NTFS. I copied 80 files over to the disk using RSYNC. Once the copy finished, I unmounted the disk and plugged it into a WIN10 PC. I was able to read the files without issue. I formatted the 24TB disk and started a copy of almost TB using RSYNC. It's 8:40 right now and there have been 2.65TB copied so far. More to follow...

Before I commit to formatting my 24TB disc, I'm going to try different formatting on a much smaller disk to see how my idea works out. I still have the unknown if the 24TB disk in the little RAID 0 box is going to work anyway, no matter which file system I use to format it with. More to follow...

I think Formatting with BTRFS would make the external RAID more compatible with Windows 10. I can see a use case where I would like to connect that device directly to my Windows 10 PC to copy files. So, if one of you can tell me your advice, I'll not do the Format until I hear back. XFS or BTRFS ? Currently, all the discs that make up the Array are "XFS" the Cache drives (2) are BTRFS.

I ran the "wipefs -f /dev/sda", it didn't seem to do anything. I removed the PreClear app. I clicked the red "X" and the RAID device with the 2 disks had some activity. Here is the log file and what UnRaid shows now. I'm going to try clicking on the "FORMAT" button (crossing my fingers of course). I do another post to tell what happens.

I will try 1) then uninstalling PreClear and see if 2) works. Thank you...

1) I'll try the " wipefs -f /dev/sda " first and give that feedback as well. If that doesn't help I'll got to your suggestion, below. 2) I did think about clicking the "X", but when I do it tells me it's going to force the PreClear again. It took almost 67 hours the first time. I've never tried, but maybe the answer to that is to Stop the PreClear once it starts so I don't go through that again. The discs did pass when I already ran it, so they should be good. Can you give me feedback on that assumption. If that has a good chance of working I can try it. Thank you Vr2lo.

Both Drives are Western Digital 12TB WD120EFBX. The enclosure is a Mediasonic HUR5-SU31C, it is a 2 disc device with Single, JBOD, RAID 0/1 functions. I have it in the RAID 0 setting so I can get the total 24TB of space. I named it "24TB_Backup_Disk". The IDENTIFICATION column is showing the serial number of the original 12TB Disc that I was backing my "/plexmedia/movies" Share successfully to with RSYNC using this command -> "rsync -avh --delete "/mnt/user/plexmedia/movies/" "/mnt/disks/12TB_Backup_Disk/movies/"" I added the 2nd 12TB disc and did a PreClear. After the PreClear UnRaid does show the Size to be 24TB The "Mount" button is Greyed out. This is the log file: I can't figure out how to do the Format to make the drives be seen, which is why I think the "Mount" button is Greyed out. Thank you for your response Kilrah

I understand you to say - I would be better to build a RAID 0 Pool in UnRaid using my two 12 TB Discs to build the Pool. Correct

For several years I've had a 12TB disc that I used as an unassigned device that I would backup to and store in a gun safe. I got close to filling up the disc so I bought a small 2 disc RAID 0 device and a matching 12TB disc. I added the new 12TB drive to the RAID 0 box. I ran PreClear and after 66 hours the PreClear finished. I'm not finding an option to format the discs. In the error log it looks like UnRaid sees one of the drives and the wording makes me think what I'm trying to do is not going to work. My question is can I combine the 2 matching discs in this manor as a RAID 0 disc and present them to UnRaid in the form of an unassigned device that's a 24TB disc? Thank you for the help.

This is the URL to the video I've followed:

I wasn't intending to go that route, but by accident - I did. I went ahead and Started the array last night, it's still doing the parity rebuild. Everything seems to be going as I would expect. I expect I have a few more hours to go. Fingers crossed, but I do feel good about what's taking place.

I was following Space Invader's video on Shrinking an Unraid Array. I have removed a disk before using his video (2 weeks ago) and had no problems. Today I was following the same instructions, got to the point where I shutdown the array and removed the disk, then rebooted the array. Everything looked as I was expecting from the video and my earlier disk removal. The next thing he has you go to the Tools menu, pick New Config, under 'Preserve current assignments' you pick 'Pool Slots'. When I went back to the Main tab, my 2 Cache Disks looked right, but my 2 Parity Disks and my 4 Data Disks were all showing "Unassigned" ---> I know that's bad. I went to each of them and did the drop down and chose the disk from the choices given for that Disk location. I had documented everything about what disk was assigned to each Dev in unRaid. There is a RED notice next to each of the 2 Parity disks that says "All existing data on this device will be OVERWRITTEN when array is Started". I'm afraid to go any further. I don't know if when I start the array it will rebuild the 2 Parity disks as they should be OR if my Data is about to go away... I seriously need some experienced help on what my next move should be. Thank you.

Quick update... I rebuilt Unraid from my backup file on a new motherboard, new CPU and new memory. Problem went away. Server shuts down (powers off) when I tell Unraid to do a Shutdown.