Re: Very slow I/O performance on HP BL465c

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Nathan Le Nevez wrote: > I?m fairly certain this is a hardware problem ? swapping the disks from > a known working install on another blade produced the same lousy > performance. Hmm, Check the SAS cables between the controller and the disks tray. Als

Re: RELENG_7 heavy disk = system crawls

grarpamp wrote: > > > cards aren't going to help with zfs. > > No, but for geli hifn(4) crypto(4)/(9), geli(8) might work > if aes-cbc is indeed the mode geli uses. See the source I guess. Note that only the most expensive cards are faster than a CPU. Unless you've got a very large budget, you'

RELENG_7 heavy disk = system crawls

> cards aren't going to help with zfs. No, but for geli hifn(4) crypto(4)/(9), geli(8) might work if aes-cbc is indeed the mode geli uses. See the source I guess. > Does anyone make a disk controller with crypto built in? Yes. There are trays and cable dongles and things that do aes/des. And som

Re: Very slow I/O performance on HP BL465c

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Is it possible to exchange disks between your blade1 and blade2 servers? Or to remove disks from one server and connect them to another? Also compare 'tunefs -p /' outputs Also compare the read speed of a raw device with e.g. 'dd if=/dev/da0 of=/dev/nu