HP Serviceguard Enterprise Cluster Master Toolkit User Guide, June 2014

• Allow monitoring scripts to continue normally.
$ rm -f /etc/cmcluster/pkg/SMB_1/samba.debug
A message "Starting Samba toolkit monitoring again after maintenance" appears in the
Serviceguard Package Control script log.
• Enable the package failover.
$ cmmodpkg -e SMB_1
NOTE:
◦ If the package fails during maintenance (for example, the node crashes), the package
does not automatically fail over to an adoptive node. You must start the package on an
adoptive node. For more information, see the latest Managing Serviceguard manual
available at http://www.hp.com/go/hpux-serviceguard-docs —>HP Serviceguard .
This feature is enabled only when the configuration variable, MAINTENANCE_FLAG, is
set to "yes" in the Samba toolkit configuration file.
◦ HP suggests you to have different toolkit directories for each package. If two or more
packages share the same toolkit directory and if one package enters the maintenance
mode, it will affect the other package too.
Points to note
When you implement HP CIFS Server in the Serviceguard HA framework, consider the following:
• Client Applications
HA CIFS Server will not make sure that client applications with open files on a CIFS Server
share or applications launched from CIFS Server share, will recover from a switchover. In
these instances there may be cases where the application will need to be restarted and the
files reopened, as a switchover is a logical shutdown and restart of the CIFS Server.
• File Locks
File locks are not retained during failover, and applications are notified about any lost file
locks.
• Print Jobs
If a failover occurs when a print job is in process, the job may be printed twice or not at all,
depending on the job state at the time of the failover.
• Symbolic Links
Symbolic links in the shared directory trees may point to files outside any shared directory. If
symbolic links point to files that are not on shared file systems, after a failover occurs, the
symbolic links may point to different files or to no file. It will be difficult to maintain the targets
of all shared symbolic links that are synchronized with all nodes at all times in this situation.
As an alternative, either set wide links to "no", or ensure that every file or directory pointed
to is on a shared file system.
• Security Files and Encrypted Passwords
Authentication is dependent on several entries in different security files. An important security
file is the user password file, smbpasswd. If your CIFS Server is configured with encrypted
passwords set to "yes", use an smbpasswd file. By default, this file is located in the path
/var/opt/samba/private but a different path may be specified via the smb passwd
file parameter.
Another important security file is secrets.tdb. Machine account information is among the
important contents of this file. This file is updated periodically (as defined in smb.conf by
Points to note 133