Serviceguard NFS Toolkit A.11.11.06 and A.11.23.05 Administrator's Guide

Installing and Conﬁguring Serviceguard NFS

Conﬁguring a Serviceguard NFS Package

Chapter 240

LV[0]="/dev/vx/dsk/dg01/vol01"; FS[0]="/pkg1a"; FS_M

OUNT_OPT[0]="-o rw"

LV[1]="/dev/vx/dsk/dg01/vol02"; FS[1]="/pkg1b"; FS_M

OUNT_OPT[1]="-o rw"

4. Specify the IP address for the package and the address of the subnet

to which the IP address belongs:

IP[0]=15.13.114.243

SUBNET[0]=15.13.112.0

The IP address you specify is the relocatable IP address for the

package. NFS clients that mount the ﬁle systems in the package will

use this IP address to identify the server. You should conﬁgure a

name for this address in the DNS or NIS database, or in the

/etc/hosts ﬁle.

5. Serviceguard NFS Toolkit A.11.23.05 supports the new variable

HA_NFS_SCRIPT_EXTENSION in the control script (nfs.cntl). This

new variable can be used to modify the name of the NFS speciﬁc

control shell script (hanfs.sh) that is associated with a package.

For example, if you set the HA_NFS_SCRIPT_EXTENSION variable to

hapkg or hapkg.sh, then the NFS speciﬁc control script executed by

the package corresponding to this nfs.cntl ﬁle will be

hanfs.hapkg.sh. The default shell script name for this variable is

hanfs.sh.

6. If two packages have the same adoptive node, and you want to

prevent the adoptive node from adopting both packages at once,

specify the cmmodpkg command with the package control option (-d)

in the customer_defined_run_cmds:

function customer_defined_run_cmds

{

cmmodpkg -d -n ‘hostname‘ pkg02 &

}

The package control option can prevent an adoptive node from

becoming overloaded when multiple packages fail over. If an adoptive

node becomes overloaded, it can fail.

In this example, if a host is an adoptive node for both pkg01 and pkg02,

the above cmmodpkg -d command, in the control script for pkg01, would

prevent the host that is running pkg01 from adopting pkg02. A similar

line in the control script for pkg02 could prevent the host that is running

pkg02 from adopting pkg01. The ampersand (&) causes the cmmodpkg

B5140-90030.book Page 40 Thursday, August 24, 2006 9:32 AM