Specifications
LCD Configuration Data
dep_create -d Server1 -p the-project-plan -c schedule-on-
Server1
dep_create -d Server2 -p the-project-plan -cschedule-from-
Server1
9. Execute lcdsync. Execute the following lcdsynccommands to inform LifeKeeper to update
its copy of the configuration:
lcdsync -d Server1
lcdsync -d Server2
10. Bring resources into service. Access the LifeKeeper GUI on the primary server and on the
Edit menu, select Resource, then In-Service to bring the resources into service.
LCD Configuration Data
LCD stores the following related types of data:
l Dependency Information
l Resource Status Information
l Inter-Server Equivalency Information
Dependency Information
For each defined resource, LifeKeeper maintains a list of dependencies and a list of dependents
(resources depending on a resource.) For information, see the LCDI_relationship (1M) and
LCDI_instances (1M) manual pages.
Resource Status Information
LCD maintains status information in memory for each resource instance. The resource states
recognized by LCD are ISP, ISU, OSF, OSUand ILLSTATE. Resources may change from one state
to another when a system event occurs or when an administrator takes certain actions. When a
resource changes states, the status change is reflected in the LCD on the local server as well as in
the database of the backup servers for that resource.
Inter-Server Equivalency Information
Relationships may exist between resources on various servers. A shared equivalency is a
relationship between two resources on different servers that represents the same physical entity.
When two servers have a resource with a shared equivalency relationship, LifeKeeper attempts to
ensure in its actions that only one of the two servers has the resource instance in the in-service,
protected [ISP] state at any one time. Both servers can have the resource instance in an out-of-
service state [OSU or OSF], but for data integrity reasons, only one server can have the resource in
service at any given time.
SteelEye Protection Suite for Linux195