On Wed, 2007-12-05 at 09:21 +0100, Maurizio Rottin wrote: > 2007/12/4, Lon Hohberger <lhh@xxxxxxxxxx>: > > On Tue, 2007-12-04 at 10:40 +0100, Maurizio Rottin wrote: > > > hi all, > > > > > > my setup is a cluster of 6 physical machines connected with qlogic HBA to a SAN. > > > > > > Now i can run several xen virtual machines but i need to read from the > > > same partition with a high I/O rate (my application doesn't need to > > > write a lot). > > > > > > Hence my question is, do i need a gfs cluster on the physical nodes > > > and export with gndb for network mounting on xen machines (which seems > > > to be slow, cause i'm using network in this way), or is there a way to > > > insert the xen nodes in the gfs cluster too (in this way i should use > > > kernel to directly access gfs/gfs2 partition)? > > > > Why don't you just present the shared LUNs to all of the xen guests, > > like: > > > > # Disks > > disk = [ "tap:aio:/guests/molly.img,xvda,w", > > "phy:/dev/sdb1,xvdb,w!","phy:/dev/sdb2,xvdc,w!" ] > > > > ... and gfs_mkfs /dev/xvd[bc] on a guest? > > > > xvda = local disk > > xvdb = /dev/sdb1 on host > > xvdc = /dev/sdb2 on host > > > > On the latter two, note "w!" - which allows concurrent guest access. > > > clurgmgrd: [1887]: <err> 'mount -t gfs /dev/xvdb1 /mnt/culona' failed, error=1 > as you can see...it says gfs and i'm trying to put some gfs2 into > src.rpm and recompile, if i can find the right line! > (i really want to use gfs2!) > > how did you do this? I just committed patches to -head and -RHEL5 branches which allow clusterfs.sh to mount gfs2 partitions. <clusterfs name="myname" fstype="gfs2" device="..." mountpoint="..." .../> Should do it, with the patch: http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/rgmanager/src/resources/clusterfs.sh.diff?cvsroot=cluster&only_with_tag=RHEL5&r1=1.15.2.4&r2=1.15.2.5 -- Lon -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
