Domain Dependency Examples

The following examples show how to configure domain dependencies.

Example 16-1  Configuring a Failure Policy by Using Domain Dependencies

The first command creates a master domain called twizzle. This command uses failure-policy=reset to specify that slave domains reset if the twizzle domain fails. The second command modifies a master domain called primary. This command uses failure-policy=reset to specify that slave domains reset if the primary domain fails. The third command creates a slave domain called chocktaw that depends on two master domains, twizzle and primary. The slave domain uses master=twizzle,primary to specify its master domains. In the event either the twizzle or primary domain fails, the chocktaw domain will reset.

primary# ldm add-domain failure-policy=reset twizzle
primary# ldm set-domain failure-policy=reset primary
primary# ldm add-domain master=twizzle,primary chocktaw

Example 16-2  Modifying a Domain to Assign a Master Domain

This example shows how to use the ldm set-domain command to modify the orange domain to assign primary as the master domain. The second command uses the ldm set-domain command to assign orange and primary as master domains for the tangerine domain. The third command lists information about all of these domains.

primary# ldm set-domain master=primary orange
primary# ldm set-domain master=orange,primary tangerine
primary# ldm list -o domain
NAME             STATE      FLAGS   UTIL
primary          active     -n-cv-  0.2%

SOFTSTATE
Solaris running

HOSTID
    0x83d8b31c

CONTROL
    failure-policy=ignore

DEPENDENCY
    master=

------------------------------------------------------------------------------
NAME             STATE      FLAGS   UTIL
orange           bound      ------

HOSTID
    0x84fb28ef

CONTROL
    failure-policy=ignore

DEPENDENCY
    master=primary

------------------------------------------------------------------------------
NAME             STATE      FLAGS   UTIL
tangerine        bound      ------

HOSTID
    0x84f948e9

CONTROL
    failure-policy=ignore

DEPENDENCY
    master=orange,primary

Example 16-3  Showing a Parseable Domain Listing

The following shows an example listing with parseable output:

primary# ldm list -o domain -p