Specifications

File System, Generic Application, IP and RAW I/O Recovery Kit Software
indicates the server has failed.
l LifeKeeper Alarm Interface - The LifeKeeper Alarm Interface provides the infrastructure for
triggering an event. The sendevent program is called by application daemons when a failure is
detected in a LifeKeeper-protected resource. The sendeventprogram communicates with the
LCD to determine if recovery scripts are available.
l LifeKeeper Recovery Action and Control Interface (LRACI) - The LRACI determines the
appropriate recovery script to execute for a resource and invokes the appropriate restore /
remove scripts for the resource.
File System, Generic Application, IP and RAW I/O Recovery Kit
Software
The LifeKeeper Core provides protection of specific resources on a server.These resources are:
l File Systems - LifeKeeper allows for the definition and failover of file systems on shared
storage devices. A file system can be created on a disk that is accessible by two servers via
a shared SCSI bus. A LifeKeeper file system resource is created on the first server and then
extended to the second server.File System Health Monitoring detects disk full and improperly
mounted (or unmounted) file system conditions. Depending on the condition detected, the
Recovery Kit may log a warning message, attempt a local recovery, or failover the file system
resource to the backup server.
Specific help topics related to the File System Recovery Kit include Creating and Extending a
File System Resource Hierarchy and File System Health Monitoring.
l Generic Applications - The Generic Application Recovery Kit allows protection of a generic or
user-defined application that has no predefined Recovery Kit to define the resource type. This
kit allows a user to define monitoring and recovery scripts that are customized for a specific
application.
Specific help topics related to the Generic Application Recovery Kit include Creating and
Extending a Generic Application Resource Hierarchy.
l IP Addresses - The IP Recovery Kit provides a mechanism to recover a "switchable" IP
address from a failed primary server to one or more backup servers in a LifeKeeper
environment. A switchable IP address is a virtual IP address that can switch between servers
and is separate from the IP address associated with the network interface card of each server.
Applications under LifeKeeper protection are associated with the switchable IP address, so if
there is a failure on the primary server, the switchable IP address becomes associated with
the backup server. The resource under LifeKeeper protection is the switchable IP address.
Refer to the IP Recovery Kit Technical Documentationincluded with the Recovery Kit for
specific product, configuration and administration information.
l RAW I/O - The RAW I/O Recovery Kit provides support for raw I/O devices for applications
that prefer to bypass kernel buffering. The RAW I/O Recovery Kit allows for the definition and
failover of raw devices bound to shared storage devices. The raw device must be configured
on the primary node prior to resource creation. Once the raw resource hierarchy is created, it
can be extended to additional servers.
SteelEye Protection Suite for Linux39