On Sat, 2013-07-06 at 03:52 -0500, Stan Hoeppner wrote:

quoted

Since even though you'd have one dmcrypt thread per disk now,... each of
them would have to en/decrypt the "same" actual data for different
devices... so while you have 4x threads... you need to do 4x
en/decryption works.

This would only be true if using n-way mirroring.

Ah yes...
(as you already assumed) I missed the point with striping... ;) ...

But also for RAID5/6 you shouldn't get n times the performance (when n
is the number of disks), probably "only" about (n-1) times respectively
(n-2) times, right?


Cheers,
Chris.