Specifications

Steeleye Protection Suite/vAppKeeper Recovery Behavior
Steeleye Protection Suite/vAppKeeper Recovery Behavior
Steeleye Protection Suiteand SteelEye vAppKeeper are designed to monitor individual applications
and groups of related applications, periodically performing local recoveries or notifications when
protected applications fail. Related applications, by example, are hierarchies where the primary
application depends on lower-level storage or network resources. When an application or resource
failure occurs, the default behavior is:
1. Local Recovery: First, attempt local recovery of the resource or application.An attempt will
be made to restore the resource or application on the local server without external intervention.
If local recovery is successful, then Steeleye Protection Suite/vAppKeeper will not perform
any additional action.
2. Failover(or VMware HA integration): Second, if a local recovery attempt fails to restore the
resource or application (or the recovery kit monitoring the resource has no support for local
recovery), then a failover will be initiated.Failovers can take two different forms:
l Steeleye Protection Suitefor Linux: In this configuration, used for high availability
clusters, the failover action attempts to bring the application (and all dependent
resources) into service on another server within the cluster.
l SteelEye vAppKeeper: In this configuration, used for application monitoring in
VMware environments, a failover action alerts VMware HA that an application failure
occurred in the virtual machine (VM) guest. Typical VMware HA response is to
immediately, without warning, restart the VM guest to rectify the problem. In some
cases, VMware HA can also move the VM guest to a different VM host or take another
action.How VMware HA handles the condition is independent of the SteelEye
vAppKeeper configuration.
Please see SteelEye Protection Suite Fault Detection and Recovery Scenariosor vAppKeeper Fault
Detection and Recovery Scenarios for more detailed information about our recovery behavior.
Custom and Maintenance-Mode Behavior via Policies
Steeleye Protection Suite/vAppKeeper Version 7.5 and later supports the ability to set additional
policies that modify the default recovery behavior. There are four policies that can be set for individual
resources (see the section below about precautions regarding individual resource policies) or for an
entire server. The recommended approach is to alter policies at the server level.
The available policies are:
Standard Policies
l Failover(For vAppKeeper, this leverages VMware HA integration, which initiates a restart of
the VM). This policy setting can be used to turn on/off resource failover. (Note: In order for
reservations to be handled correctly, Failover cannot be turned off for individual scsi
resources.)
l LocalRecovery- Steeleye Protection Suite/vAppKeeper, by default, will attempt to recover
protected resources by restarting the individual resource or the entire protected application
SteelEye Protection Suite for Linux121