Geli sector size > 8192 completely breaks.

RW fbsd06 at mlists.homeunix.com
Sat Feb 2 19:33:41 PST 2008


On Sat, 2 Feb 2008 10:51:19 +0000
Andrew B <lightmoogle at hotmail.com> wrote:

> 
> I've been trying to get GELI working in a number of ways, and it
> seems whenever I change the sector size to 16384 or higher, I can't
> run newfs on the resultant encrypted volume.

Bill Moran, in the questions list, said he got panics at 8k.

> Using dd with sector size 16384 gives me the greatest performance for
> the sector size I'm willing to have.

I did some tests like that, but I wondered how well that translates to
actual performance. dd shows the benefit of fewer IV initialisations,
but that could be wiped-out if larger sectors lead to more work for the
cipher.



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