Hi. I'm trying your method, but still have a problem: Note: /dev/db2/ is a local partition on my second SCSI hard drive (no RAID) runing on HP ProLiant On node3: # /usr/sbin/vgcreate vg01 /dev/sdb2 Volume group "vg01" successfully created # /usr/sbin/vgchange -cy vg01 Volume group "vg01" is already clustered # /usr/sbin/lvcreate -n node3_lv -L 67G vg01 Error locking on node node4: Internal lvm error, check syslog Failed to activate new LV. --->On node4 log : lvm[6361]: Volume group for uuid not found: sgufJEs53VJSJTKG0vA1dLHXTthjnFctmfjC6YddzZvY3LI6db300wqEp8H0H58H Then I can mount /dev/vg01/node3_lv as gfs on node3, but node4 can't view the new files. What i'm trying to do is to mount 2 partitions (one on node3, the other on node4) as one big shared drive using gfs and then expand this to 4 nodes. Any help is well appreciated!!! (i'm a cluster newbie) Thanks. > Hi, > > When using GFS in a clustered environment, I strongly recommend you use LVM > rather than using the raw device for your GFS partition. Without a > clustered > LVM of some sort, there is no locking coordination between the nodes. > I'm assuming, of course, that device sdb is some kind of shared storage, > like a SAN. > > For example, assuming that your /dev/sdb2 has no valuable data yet, I > recommend > doing something like this: > > pvcreate /dev/sdb2 > vgcreate your_vg /dev/sdb2 (where "your_vg" is the name you choose for > your new vg) > vgchange -cy your_vg (turn on the clustered bit) > lvcreate -n your_lv -L 500G your_vg (where 500G is the size of your file > system, > and your_lv is the name you choose for your lv) > gfs_mkfs -p lock_dlm -t node1_cluster:node1_gfs -j 8 /dev/your_vg/your_lv > (on only one node) > At this point you've got to bring up the cluster infrastructure, if it > isn't already up. > Next, mount the logical volume from both nodes: > mount -tgfs /dev/your_vg/your_lv /users/home > > Now when you touch a file on one node, the other node should see it. > > I hope this helps. > > Regards, > > Bob Peterson > Red Hat Cluster Suite > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
