HP Serviceguard manual Managing Disk Groups and Mount Points Using Legacy Packages

Managing Disk Groups and Mount Points Using Legacy Packages

To manage disk groups and mount points in a Serviceguard cluster using CVM/CFS, create disk group and mount point packages. These packages are configured for activating disk groups and mounting the volumes. The applications that use CVM/CFS require the disk group and mount point packages to be up and running.

Creating a File System and Mount Point Package

1.Create a file system:

newfs -F vxfs /dev/vx/rdsk/logdata/log_files

version 6 layout

1-048576 sectors, 1048576 blocks of size 1024, log size 16384 blocks largefiles supported

2.Create the cluster mount point:

cfsmntadm add logdata log_files /tmp/logdata/log_files all=rw

Package name “SG-CFS-MP-1” is generated to control the resource.

You do not need to create the directory. The command creates one on each of the nodes, during the mount.

3.Verify with cmviewcl or cfsmntadm display. This example uses the cfsmntadm command:

cfsmntadm display

Cluster Configuration for Node:		ftsys9
MOUNT POINT	TYPE	SHARED VOLUME	DISK GROUP	STATUS
/tmp/logdata/log_files	regular	log_files	logdata	NOT MOUNTED
Cluster Configuration for Node:		ftsys10
MOUNT POINT	TYPE	SHARED VOLUME	DISK GROUP	STATUS
/tmp/logdata/log_files	regular	log_files	logdata	NOT MOUNTED

4.Mount the file system:

cfsmount /tmp/logdata/log_files

This starts up the multi-node package and mounts a cluster-wide file system.

5.Verify that multi-node package is running and file system is mounted: cmviewcl

CLUSTER STATUS cfs_cluster up

NODE STATUS STATE

ftsys9	up	running
ftsys10	up	running
MULTI_NODE_PACKAGES
PACKAGE		STATUS	STATE	AUTO_RUN	SYSTEM
SG-CFS-pkg		up	running	enabled	yes
SG-CFS-DG-1		up	running	enabled	no
SG-CFS-MP-1		up	running	enabled	no

ftsys9/etc/cmcluster/cfs> bdf

Filesystem	kbytes used avail		%used	Mounted on
/dev/vx/dsk/logdata/log_files	10485 17338	966793	2%	tmp/logdata/log_files
ftsys10/etc/cmcluster/cfs> bdf
Filesystem	kbytes used avail		%used	Mounted on
/dev/vx/dsk/logdata/log_files	10485 17338	966793	2%	tmp/logdata/log_files

6.To view the package name that is monitoring a mount point, use the cfsmntadm show_package command:

cfsmntadm show_package /tmp/logdata/log_files

216 Building an HA Cluster Configuration