On Wed, Dec 12, 2012 at 2:06 PM,  [off-list ref] wrote:

On Wed, Dec 12, 2012, at 10:48, cwillu wrote:

quoted

Sayeth the FAQ:

Oh pardon me, it's BTRFS RAID that's a no-go, which is just as critical
to me as I have a 4 disk 8TB array.
The FAQ goeth on to Say:
-----------------------------------------------------------
This pretty much forbids you to use btrfs' cool RAID features if you
need encryption. Using a RAID implementation on top of several encrypted
disks is much slower than using encryption on top of a RAID device. So
the RAID implementation must be on a lower layer than the encryption,
which is not possible using btrfs' RAID support.
 -----------------------------------------------------------

You saw that I need RAID above.  Were you just trying to criticize my
memory of the FAQ cwillu?

It's not asking for trouble, it's just asking for poor performance,
and I suspect even that will depend greatly on the workload.

Snapshots still have nothing to do with it:  you could have btrfs
(with snapshots) on dm-crypt on mdraid.  Btrfs would just lose the
ability to try alternate mirrors and similar; snapshots would still
work just fine.