Santiago Castillo wrote: > The kernel I use is here > http://packages.debian.org/testing/admin/linux-image-2.6.18-3-amd64 Its source appears to be: linux-2.6_2.6.18.orig.tar.gz + linux-2.6_2.6.18-7.diff.gz Anyway, I looked at linux-2.6_2.6.18-8.diff.gz > The stride parameter is in mke2fs command. Yep. Now I see it. Looks like stride parameter changes on-disk layout by adjusting block and inode bitmap locations. It does not directly affect file system to device driver communications. > I suppose that stride parameter is only useful when the fs is directly > over RAID and not over a loop device. is this true? I quickly looked at the source. To me it looked like that same improvements or regressions should apply for both ext3->RAID5 and ext3->loop-AES->RAID5. -- Jari Ruusu 1024R/3A220F51 5B 4B F9 BB D3 3F 52 E9 DB 1D EB E3 24 0E A9 DD - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/