Mounted.ocfs2 -f shows current node only

Question

I am trying to configure two-node RAC (10g R2) on 32-bit Linux on VMWare (Vincent Chan's guide).
when I run this command, it only shows the current (where the command is issued) node:
on rac1
[root@rac1 init.d]# mounted.ocfs2 -f
Device                FS     Nodes
/dev/sdb1             ocfs2  rac1It shows "rac1" only. "rac2" is missing.
on rac2
[root@rac2 init.d]# mounted.ocfs2 -f
Device                FS     Nodes
/dev/sdb1             ocfs2  rac2It shows "rac2" only. "rac1" is missing.
Here is some info:
*1st Node - rac1*
[root@rac1 init.d]# mounted.ocfs2 -f
Device                FS     Nodes
/dev/sdb1             ocfs2  rac1
[root@rac1 init.d]# mounted.ocfs2 -d
Device                FS     UUID                                  Label
/dev/sdb1             ocfs2  18f13142-7c34-43a1-92d3-668f666dbacb  oracle
[root@rac1 init.d]# ./ocfs2 status
Configured OCFS2 mountpoints:  /ocfs
Active OCFS2 mountpoints:  /ocfs
[root@rac1 init.d]# ./o2cb status
Module "configfs": Loaded
Filesystem "configfs": Mounted
Module "ocfs2_nodemanager": Loaded
Module "ocfs2_dlm": Loaded
Module "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster ocfs2: Online
  Heartbeat dead threshold: 61
  Network idle timeout: 10000
  Network keepalive delay: 5000
  Network reconnect delay: 2000
Checking O2CB heartbeat: Active*2nd Node - rac2*
[root@rac2 init.d]# mounted.ocfs2 -f
Device                FS     Nodes
/dev/sdb1             ocfs2  rac2
[root@rac2 init.d]# mounted.ocfs2 -d
Device                FS     UUID                                  Label
/dev/sdb1             ocfs2  b65abba9-5988-4ee0-9e10-ad5533dff807  oracle
[root@rac2 init.d]# ./ocfs2 status
Configured OCFS2 mountpoints:  /ocfs
Active OCFS2 mountpoints:  /ocfs
[root@rac2 init.d]# ./o2cb status
Module "configfs": Loaded
Filesystem "configfs": Mounted
Module "ocfs2_nodemanager": Loaded
Module "ocfs2_dlm": Loaded
Module "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster ocfs2: Online
  Heartbeat dead threshold: 61
  Network idle timeout: 10000
  Network keepalive delay: 5000
  Network reconnect delay: 2000
Checking O2CB heartbeat: ActiveAlso, if I create a file on "/ocfs" from rac1, it is not visible on rac2 and vice versa.
Could someone please let me know what should I check further? Or what the problem maybe?
TIA
Edited by: user130038 on Jul 21, 2011 10:10 AM

Answer 1

I don't have access to the virtual machines at the moment so I'll send you the "fdisk -l" output later but here is the excerpt from Vincent Chan's Guide that I am following to configure ocfs2 oartition - my apologies that it is not formatted/readable because I have copied it from the PDF and pasted it:
6. Configure Oracle Cluster File System (OCFS2)
OCFS2 is a general-purpose cluster file system developed by Oracle and integrated with the
Enterprise Linux kernel. It enables all nodes to share files concurrently on the cluster file system and
thus eliminates the need to manage raw devices. Here you will house the OCR and Voting Disk in
the OCFS2 file system. Additional information on OCFS2 can be obtained from OCFS2 User’s
Guide.
You should already have the OCFS2 RPMs installed during the Enterprise Linux installation. Verify
that the RPMs have been installed on both nodes.
rac1-> rpm -qa | grep ocfs
ocfs2-tools-1.2.2-2
ocfs2console-1.2.2-2
ocfs2-2.6.9-42.0.0.0.1.ELsmp-1.2.3-2
Create the OCFS2 configuration file. As the root user on rac1, execute
# ocfs2console
OCFS2 Console: Select Cluster, 1. Configure Nodes.
2. “The cluster stack has been started”: Click on Close.
3. Node Configuration: Click on Add.
Add Node: Add the following nodes and then click on Apply.
Name: rac1
IP Address: 192.168.2.131
IP Port: 7777
Name: rac2
IP Address: 192.168.2.132
4.
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IP Port: 7777
Verify the generated configuration file.
# more /etc/ocfs2/cluster.conf
node:
ip_port = 7777
ip_address = 192.168.2.131
number = 0
name = rac1
cluster = ocfs2
node:
ip_port = 7777
ip_address = 192.168.2.132
number = 1
name = rac2
cluster = ocfs2
cluster:
node_count = 2
name = ocfs2
5.
Propagate the configuration file to rac2. You can rerun the steps above on rac2 to generate the
configuration file or select Cluster, Propagate Configuration on the OCFS2 Console on rac1
to propagate the configuration file to rac2.
6.
Configure the O2CB driver. O2CB is a set of clustering services that manages the communication
between the nodes and the cluster file system. Below is a description of the individual services:
NM: Node Manager that keep track of all the nodes in the cluster.conf
HB: Heartbeat service that issues up/down notifications when nodes join or leave the cluster
TCP: Handles communication between the nodes
DLM: Distributed lock manager that keeps track of all locks, its owners, and status
CONFIGFS: User space driven configuration file system mounted at /config
DLMFS: User space interface to the kernel space DLM
Perform the procedure below on both nodes to configure O2CB to start on boot.
When prompted for a value for the heartbeat dead threshold, you have to specify a value higher than
7 to prevent the nodes from crashing due to the slow IDE disk drive. The heartbeat dead threshold is
a variable used to calculate the fence time.
Fence time (seconds) = (heartbeat dead threshold -1) * 2
A fence time of 120 seconds works well in our environment. The value of heartbeat dead threshold
should be the same on both nodes.
As the root user, execute
# /etc/init.d/o2cb unload
Stopping O2CB cluster ocfs2: OK
Unmounting ocfs2_dlmfs filesystem: OK
Unloading module "ocfs2_dlmfs": OK
Unmounting configfs filesystem: OK
Unloading module "configfs": OK
# /etc/init.d/o2cb configure
Configuring the O2CB driver.
This will configure the on-boot properties of the O2CB driver.
The following questions will determine whether the driver is loaded on
boot. The current values will be shown in brackets ('[]'). Hitting
without typing an answer will keep that current value. Ctrl-C
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will abort.
Load O2CB driver on boot (y/n) [y]: y
Cluster to start on boot (Enter "none" to clear) [ocfs2]:
Specify heartbeat dead threshold (>=7) [7]: 61
Writing O2CB configuration: OK
Loading module "configfs": OK
Mounting configfs filesystem at /config: OK
Loading module "ocfs2_nodemanager": OK
Loading module "ocfs2_dlm": OK
Loading module "ocfs2_dlmfs": OK
Mounting ocfs2_dlmfs filesystem at /dlm: OK
Starting O2CB cluster ocfs2: OK
Format the file system. Before proceeding with formatting and mounting the file system, verify that
O2CB is online on both nodes; O2CB heartbeat is currently inactive because the file system is not
mounted.
# /etc/init.d/o2cb status
Module "configfs": Loaded
Filesystem "configfs": Mounted
Module "ocfs2_nodemanager": Loaded
Module "ocfs2_dlm": Loaded
Module "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster ocfs2: Online
Checking O2CB heartbeat: Not active
You are only required to format the file system on one node. As the root user on rac1, execute
# ocfs2console
OCFS2 Console: Select 1. Tasks, Format.
Format:
Available devices: /dev/sdb1
Volume label: oracle
Cluster size: Auto
Number of node slots: 4
Block size: Auto
2.
3. OCFS2 Console: CTRL-Q to quit.
Mount the file system. To mount the file system, execute the command below on both nodes.
# mount -t ocfs2 -o datavolume,nointr /dev/sdb1 /ocfs
To mount the file system on boot, add the following line in /etc/fstab on both nodes.
/etc/fstab
/dev/sdb1 /ocfs ocfs2 _netdev,datavolume,nointr 0 0
Create Oracle Clusterware directory. Create the directory in OCFS2 file system where the OCR
and Voting Disk will reside.
On rac1,
# mkdir /ocfs/clusterware
# chown -R oracle:dba /ocfs
You have completed the set up of OCFS2. Verify that you can read and write files on the shared
cluster file system from both nodes.