Jose, I add my 50 cents, i know, what you want backup data from raid through network and what you have only 11 TB data from 40 TB fs As i now, you can safety resize btrfs fs, without btrfs fi resize, something like that: $ btrfs fi df / Data, single: total=81.00GiB, used=60.33GiB System, DUP: total=32.00MiB, used=16.00KiB Metadata, DUP: total=1.50GiB, used=507.48MiB GlobalReserve, single: total=176.00MiB, used=0.00B - I can cut partitions to 81+1.5+~256 = 83g and + 1G for safety = 84G. And my data not lost and btrfs still working after this. After, you can use free space on the disk, to create new fs and backup data to him without problems, Developers, please сorrect me if I'm wrong. -- Best regards, Timofey. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
