Thanks for the ext4 comments. My issues with ext4 (and 3) are the long fsck times. In case of a reboot, w need to be up, and not waiting hours for 6 TB to fsck. Gerald ----- Original Message ----- > From: "Robert Krig" <robert at bitcaster.de> > To: gluster-users at gluster.org > Sent: Thursday, October 20, 2011 8:53:50 AM > Subject: Re: Optimal XFS formatting? > > > Try using ext4 if you can. Small file read performance will be MUCH > better than xfs. > On the other hand, you might wanna run some benchmark tests which > resemble your workload, to compare xfs vs ext4 both with and without > glusterfs. > > > > > > On 10/20/2011 03:36 PM, Sabuj Pattanayek wrote: > > Hi, > > > > I've seen that EXT4 has better random I/O performance than XFS, > > especially on small reads and writes. For large sequential reads > > and > > writes XFS is a little bit better. For really large sequential > > reads > > and write EXT4 and XFS are about the same. I used to format XFS > > using > > this: > > > > mkfs.xfs -l size=64m > > > > (notes from > > http://everything2.com/title/Filesystem+performance+tweaking+with+XFS+on+Linux) > > > > but realized that it doesn't seem to effect performance for me. You > > should definitely try mounting with this : > > > > mount -t xfs -o rw,noatime,nodiratime,logbufs=8 > > > > HTH, > > Sabuj > > > > On Thu, Oct 20, 2011 at 8:18 AM, Gerald Brandt <gbr at majentis.com> > > wrote: > >> Hi, > >> > >> Are there any 'optimal' settings for XFS formatting under > >> GlusterFS? The storage will be used for Virtual Disk storage, > >> virtual disk size from 8GB to 100 GB in size. > >> > >> One of the VM's (separate gluster volume) will be running MSSQL > >> server (4K reads and writes). The other will be running file > >> servers, etc). > >> > >> Thanks, > >> Gerald > >> _______________________________________________ > >> Gluster-users mailing list > >> Gluster-users at gluster.org > >> http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > >> > > _______________________________________________ > > Gluster-users mailing list > > Gluster-users at gluster.org > > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users >
