Hi, I think the problem is solved. I was using a 9000bytes MTU on the Xen virtual machines' iSCSI interface. Switching back to 1500bytes MTU caused the clvmd to start working. On Thu, Mar 03, 2011 at 11:50:57AM -0500, Valeriu Mutu wrote: > On Wed, Mar 02, 2011 at 05:36:45PM -0500, Jeff Sturm wrote: > > Double-check that the 2nd node can read and write the shared iSCSI > > storage. > > Reading/writing from/to the iSCSI storage device works as seen below. > > On the 1st node: > [root@vm1 cluster]# dd count=10000 bs=1024 if=/dev/urandom of=/dev/mapper/pcbi-homes > 10000+0 records in > 10000+0 records out > 10240000 bytes (10 MB) copied, 3.39855 seconds, 3.0 MB/s > > [root@vm1 cluster]# dd count=10000 bs=1024 if=/dev/mapper/pcbi-homes of=/dev/null > 10000+0 records in > 10000+0 records out > 10240000 bytes (10 MB) copied, 0.331069 seconds, 30.9 MB/s > > On the 2nd node: > [root@vm2 ~]# dd count=10000 bs=1024 if=/dev/urandom of=/dev/mapper/pcbi-homes > 10000+0 records in > 10000+0 records out > 10240000 bytes (10 MB) copied, 3.2465 seconds, 3.2 MB/s > > [root@vm2 ~]# dd count=10000 bs=1024 if=/dev/mapper/pcbi-homes of=/dev/null > 10000+0 records in > 10000+0 records out > 10240000 bytes (10 MB) copied, 0.223337 seconds, 45.8 MB/s -- Valeriu Mutu -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
