Re: Cycle of send/receive for backup/restore is incomplete...

2014-04-24 Thread Chris Murphy
On Apr 24, 2014, at 1:08 AM, Robert White wrote: > So the systems are "the same" but they aren't really the same according to > this clearly visible symptom. I don't think of btrfs send/receive as sending/receiving whole subvolumes, but rather just their contents. Try btrfs sub show on the

Re: Cycle of send/receive for backup/restore is incomplete...

2014-04-24 Thread Robert White
I am, then, quite confused... On 04/23/2014 09:28 PM, Brendan Hide wrote: Replied inline: btrfs doesn't differentiate snapshots and subvolumes. They're the same first-class citizen. A snapshot is a subvolume that just happens to have some data (automagically/naturally) deduplicated with another

Re: Cycle of send/receive for backup/restore is incomplete...

2014-04-23 Thread Brendan Hide
Replied inline: On 2014/04/24 12:30 AM, Robert White wrote: So the backup/restore system described using snapshots is incomplete because the final restore is a copy operation. As such, the act of restoring from the backup will require restarting the entire backup cycle because the copy operati

Cycle of send/receive for backup/restore is incomplete...

2014-04-23 Thread Robert White
So the backup/restore system described using snapshots is incomplete because the final restore is a copy operation. As such, the act of restoring from the backup will require restarting the entire backup cycle because the copy operation will scramble the metadata consanguinity. The real choice