I have asked a question at
http://serverfault.com/questions/318526/ocfs-configuration , but I
thought this might be a better place to ask.
I installed Oracle Linux 3.0 on my machine, and I created two ocfs2
partitions, /cluster1 and /cluster2. I just created it with default
options, so maybe that's where I went wrong. I configured
/etc/ocfs2/cluster.conf and generated /etc/sysconfig/o2cb. It looks to
be fine, but it's not actually syncing the filesystems.
What am I doing wrong? Do I need to specify certain flags in /etc/fstab?
I put a filesystem name "vmcluster" on sda3 to see if it might help.
Also, on one server, it's using sda3 and sdb3, and the other is sda2
and sdb2. They also may be different sizes, so if that would be
causing my problem, let me know.
Here is my configuration below.
== /etc/mtab =/dev/sda3 /cluster1 ocfs2 rw,_netdev,heartbeat=local 0 0
/dev/sdb3 /cluster2 ocfs2 rw,heartbeat=none 0 0
== /etc/ocfs2/cluster.conf =
cluster:
node_count = 2
name = vmcluster
node:
ip_port = 7777
ip_address = 198.18.0.25
number = 0
name = vm1
cluster = vmcluster
node:
ip_port = 7777
ip_address = 198.18.0.26
number = 1
name = vm2
cluster = vmcluster
== /etc/sysconfig/o2cb (Generated) =
O2CB_ENABLED=true
O2CB_STACK=o2cb
O2CB_BOOTCLUSTER=vmcluster
O2CB_HEARTBEAT_THRESHOLDO2CB_IDLE_TIMEOUT_MSO2CB_KEEPALIVE_DELAY_MSO2CB_RECONNECT_DELAY_MS
===========
--
Thanks,
Brad Landis
ocfs2 is a shared disk cluster file system. It requires a shared disk. However, if you are only going to use 2 nodes, you could use drbd, a replicating block device. To ocfs2, it appears as a shared disk. Google drbd and ocfs2 for more. On 10/05/2011 07:15 AM, Bradlee Landis wrote:> I have asked a question at > http://serverfault.com/questions/318526/ocfs-configuration , but I > thought this might be a better place to ask. > > I installed Oracle Linux 3.0 on my machine, and I created two ocfs2 > partitions, /cluster1 and /cluster2. I just created it with default > options, so maybe that's where I went wrong. I configured > /etc/ocfs2/cluster.conf and generated /etc/sysconfig/o2cb. It looks to > be fine, but it's not actually syncing the filesystems. > > What am I doing wrong? Do I need to specify certain flags in /etc/fstab? > > I put a filesystem name "vmcluster" on sda3 to see if it might help. > Also, on one server, it's using sda3 and sdb3, and the other is sda2 > and sdb2. They also may be different sizes, so if that would be > causing my problem, let me know. > > Here is my configuration below. > > == /etc/mtab => /dev/sda3 /cluster1 ocfs2 rw,_netdev,heartbeat=local 0 0 > /dev/sdb3 /cluster2 ocfs2 rw,heartbeat=none 0 0 > > == /etc/ocfs2/cluster.conf => > cluster: > node_count = 2 > name = vmcluster > > node: > ip_port = 7777 > ip_address = 198.18.0.25 > number = 0 > name = vm1 > cluster = vmcluster > > node: > ip_port = 7777 > ip_address = 198.18.0.26 > number = 1 > name = vm2 > cluster = vmcluster > > == /etc/sysconfig/o2cb (Generated) => > O2CB_ENABLED=true > O2CB_STACK=o2cb > O2CB_BOOTCLUSTER=vmcluster > O2CB_HEARTBEAT_THRESHOLD> O2CB_IDLE_TIMEOUT_MS> O2CB_KEEPALIVE_DELAY_MS> O2CB_RECONNECT_DELAY_MS> > ===========> >
Sorry Sunil, my email replied to you instead of the list. On Wed, Oct 5, 2011 at 10:09 AM, Sunil Mushran <sunil.mushran at oracle.com> wrote:> ocfs2 is a shared disk cluster file system. It requires a shared disk. > > However, if you are only going to use 2 nodes, you could use drbd, > a replicating block device. To ocfs2, it appears as a shared disk. > Google drbd and ocfs2 for more. >So I've been confused about this the whole time I guess. So how is the OCFS drive shared? Is it done through OCFS, or does it require NFS? How do I access the filesystem from the other node? -- Thanks, Brad Landis -- Thanks, Brad Landis