Kirk Bocek wrote:
I'm going to leave the OS volumes (/, /boot, /var, etc) as ext3. This should reduce the chances of creating a non-bootable system. I'm going to take a leap of faith and use XFS on my 'data' volumes. I'm sure I can make use of the 200MB/Sec writes I've benchmarked with bonnie++.
I just converted one of my xen domains running on an x86_64 from ext3 to xen. That's one partition containing everything, system and data. I must say, I am content with performance compared to ext3. What I've seen is that an umount takes quite a while after having written tons of data (like with bonnie++). With umount I mean: shutdown xen domain, mount this partition, write data on it, and then umount it and wait up to 1 min for it to complete(!). The only thing I had to care of around xenU was the xfs module, which had to be pre-known via ramdisk, so I had no worries being able to boot the xenU...
mkinitrd /boot/initrd-`uname -r`-xenU.img `uname -r` -v --fstab=/mnt/lvx04/etc/fstab
Greetings - Michael