On Wed, Dec 23, 2009 at 10:47 AM, carlopmart <carlopmart at gmail.com> wrote: > Hi all, > > Recently I have installed a centOS 5.4 server to use as a home NAS server. I need > to use large files (8GB minimum) inside of it to serve via iSCSI services. Which > filesystem do you recommends me to reach maximum performance: xfs, ext3, ext4, gfs2 > ....?? I don't know if this is still true, but when I last checked a couple years ago, the recommendation was for LVM device backed iSCSI targets. http://osdir.com/ml/linux.iscsi.tgt.devel/2008-09/msg00000.html With LVMs you'd of course lose the flexibility of file-backed targets and the ability to do sparse files are you're intending.. dd if=/dev/zero of=iqn.2009-12.com.mydomain:storage.disk01.foo.foo bs=1 count=0 seek=16G