HP Serviceguard Toolkit for NFS on Linux User Guide (May 2013)

• Verify the presence of the NFS binaries that are required to start the following daemons for
specific OS distribution:
◦ rpcbind
◦ rpc.statd
◦ rpc.mountd
◦ rpc.nfsd
◦ portmap
◦ rpc.idmapd if NFSv4 is used
If the verification fails for the respective commands, the console displays the following error
message:
Error: <binaryname> does not exist.
Solution: Install all the binaries specific to distributions, which provides the binaries required
for the NFS server daemons to start.
For example:
◦ Redhat: rpcbind, nfs-utils, portmap, and idmapd RPM's.
◦ SLES11: rpcbind, nfs-kernel-server, and portmap RPM's.
• Verify whether the NFSv4_VIRTUAL_ROOT is unique and same across all the package nodes
of the cluster for an NFSv4 package.
If the verification fails for the respective commands, the console displays the following warning
message:
WARNING: Virtual root is already defined in the <hostname>.
Online modification of the package
In addition to the online modification feature supported by Serviceguard, the online modification
feature allows you to modify some of the toolkit attribute values, while the toolkit package is running.
Table 3 (page 15) lists all the attributes that support online modifications for this toolkit package.
NOTE: Online modification of the package attributes is not supported for legacy style of
packaging.
Steps to perform online package modification:
• While the package is running, retrieve the current package configuration values using the
cmgetconf command.
For example: #cmgetconf -p <<Toolkit_Package_Name>>
<<Latest_Toolkit_Conf_File>>.
• Backup this latest configuration file using a copy utility. This allows the user to refer to the
previous configuration values.
For example: #cp -p <<Latest_Toolkit_Conf_File>>
<<Backup_Toolkig_Conf_File>>.
• Edit the <<Latest_Toolkit_Conf_File>> to modify the required attribute values.
• Use cmcheckconf command to verify the package configuration file.
#cmcheckconf –P <<Latest_Toolkit_Conf_File>>.
20 Using HP Serviceguard toolkit for NFS