October 1Oct 1 Hello: I just created a pool to use as a local backup using a ext USB Nas. Can anyine tell me if there is a reason that 4 8TB drives only show up as 16TB? Thank You
October 1Oct 1 Community Expert It depends on which btrfs profile the pool is set to use. The default will be raid1 which means half the total space is available for files.
October 1Oct 1 Community Expert What RAID type have you selected for it? By default it'd be RAID1 so half the capacity for redundancy. Edited October 1Oct 1 by Kilrah
October 1Oct 1 Author 1 minute ago, itimpi said:It depends on which btrfs profile the pool is set to use. The default will be raid1 which means half the total space is available for files.OK, makes sense. I want it to act like a normal drive. I had it back up to another server, but it took forever. Can a pool be formatted as RAID 0?
October 1Oct 1 Author 8 minutes ago, Kilrah said:What RAID type have you selected for it? By default it's be RAID1 so half the capacity for redundancy.Makes sense: Can I assume that if I format them as NTFS, I can pool them as a pool without the dedundancy? I dont need them to be redundant as they are actually backing up my array, and that would be redundant redundant. lol
October 1Oct 1 Community Expert 2 minutes ago, Windlasher said:Makes sense: Can I assume that if I format them as NTFSNot in a single pool, but you can use btrfs single profile or zfs stripe for that, no redundancy obviously.
October 1Oct 1 Author 13 minutes ago, JorgeB said:Not in a single pool, but you can use btrfs single profile or zfs stripe for that, no redundancy obviously.I just found a convoluted way to do that, but will give it a try. Thank you for your guidance.
October 1Oct 1 Community Expert Solution P.S. if you go with btrfs, and since all disks are of the same size, might as well use RAID0 instead of single, same lack of redundancy, but it will be faster.
October 1Oct 1 Author 5 minutes ago, JorgeB said:P.S. if you go with btrfs, and since all disks are of the same size, might as well use RAID0 instead of single, same lack of redundancy, but it will be faster.Excellent - This worked - Thank you very much.
October 2Oct 2 Community Expert 14 hours ago, Windlasher said:Hello: I just created a pool to use as a local backup using a ext USB Nas.Just be aware that all those 8TB drives are SMR. While btrfs RAID0 initial sequential writes might perform well, the rewrites will encounter significant traffic jams. Edited October 2Oct 2 by Lolight
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