Hi, I have a 4 node cluster running gfs2 on top of a EMC SAN for a while now, and since couple of months ago we are randomly experiencing heavy write slowdowns. Write rate goes down from about 30 MB/s to 10 kB/s. It can affect 1 node or more at the same time. Umount and mount solves the problem on the affected node, but after some random time (hours, days) happens again. Operating system: Centos 5.6 x86_64 Kernel: 2.6.18-238.9.1.el5 Cman: cman-2.0.115-68.el5_6.3 Gfs2-utils: gfs2-utils-0.1.62-28.el5_6.1 3 nodes fibre channel 4gb 1 node on iscsi 1gb I've read that there's a bug concerning slow writes, but i think that affects newer kernels, isn't that right? Is there any other bug that could be the root of this? Cheers, -- Ramiro Blanco -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
