Moving subvolumes across disks
I currently have a disk with a btrfs volume dedicated to backups. All of these backups are snapshotted volumes that were sent to this disk via btrfs send/receive). Moreover the disk has had deduplication processes run on it a time or two.
I wish to re-format this disk using a larger metadata block (so it can better handle large numbers of snapshots). So I want to move all existing data to another disk. Is there a way to copy/move a volume with all subvolumes to another disk, maintaining shared extents (from deduplication)?
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Michael Welsh Duggan ([email protected])