Hp StorageWorks Scalable File Share User Manual download pdf (Page 53)

mcast eth0 239.0.1.1 694 1 0

NOTE: Changing the authentication string in /etc/ha.d/authkeys causes Heartbeat to

report numerous warnings instead of error messages.

atlas1 heartbeat: [2420]: WARN: string2msg_ll: node [world1] failed authentication

Updating the mcast addresses is the only way to fix the problem.

5.3 Starting the File System

After the file system has been created, it can be started. At the low level, this is achieved by using

the mount command to mount the various file system server components that were created in

the creation section. However, since the system has been configured to use Heartbeat, use

Heartbeat commands to start the file system server components. This process requires you to

use the HP recommended configuration with the MGS and MDS nodes as a failover pair, and

additional pairs of OSS nodes where each pair has access to a common set of MSA2000 storage

devices.

IMPORTANT: You must start the Lustre file system and verify proper file system behavior on

sample clients before attempting to start the file system using Heartbeat. For more information,

see “Creating a Lustre File System” (page 45).

This procedure starts with the MGS node booted but the MDS node down.

1. Start the Heartbeat service on the MGS node:

# service heartbeat start

After a few minutes,the MGS mount is active with df.

2. Boot the MDS node.

3. Start the Heartbeat service on the MDS node:

# service heartbeat start

After a few minutes, the MDS mount is active with df.

4. Start the Heartbeat service on the remaining OSS nodes:

# pdsh -w oss[1-n] service heartbeat start

5. After the file system has started, HP recommends that you set the Heartbeat service to

automatically start on boot:

# pdsh -a chkconfig --level 345 heartbeat on

This automatically starts the file system component defined to run on the node when it is

rebooted.

5.4 Stopping the File System

Before the file system is stopped, unmount all client nodes. For example, run the following

command on all client nodes:

# umount /testfs

5.3 Starting the File System 53

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Hp StorageWorks Scalable File Share User Manual Page 53