HP Matrix Operating Environment 7.3 Recovery Management User Guide

Recovery Group
Set
A set of Recovery Groups that share the same Preferred and Secondary sites. Recovery Groups
cannot be activated or deactivated individually. Instead, all Recovery Groups that share the same
Preferred and Secondary site must be activated or deactivated as a set. Recovery Group Sets
can be selected for activation or deactivation at the Local site.
Recovery Group
Start Order
An optional number that specifies the order in which a Recovery Group is to be started during a
site failover. Recovery Groups without a start order number are started after all Recovery Groups
that have an associated start order number.
recovery logical
servers
Logical servers at the Remote Site that are included in a Recovery Group. They are associated
with logical servers at the Local Site that are included in the same Recovery Group. Normally
they are deactivated and disabled. They are enabled and activated upon site failover.
redundant SAN The duplication of components to prevent failure of the SAN solution.
Remote Site A site in a Matrix recovery management configuration that is not the Local Site.
replica IO service A replica IO service is a service Matrix recovery management creates during an import operation
at a recovery site based on the exported IO service definition in the Matrix recovery management
export file.
replica IO service
logical servers
Logical servers that are associated with replica IO services.
SAN A Storage Area Network (or subnetwork) that connects data storage devices with associated
data servers. A SAN is typically part of an overall network of computing resources.
Secondary Site The Secondary Site is the site where you prefer the Recovery Group to be on “standby” (in a
deactivated state), unless circumstances require activation of the Recovery Group at the Secondary
Site.
split-brain Split brain occurs when two or more instances of the same application are active simultaneously,
which might lead to data corruption.
Storage
Decoupling
A Matrix recovery management feature that allows failover of the logical servers or IO services
in a Recovery Group without failing over the Storage Replication Groups that are associated with
those logical servers or IO services.
Storage
Management
Server
As part of the Matrix recovery management configuration process, servers that manage HP
P6000, HP P9000, HP 3PAR, or User Defined storage devices must be defined. These servers
are referred to as Storage Management Servers.
Storage Replication
Group
A set of LUNs across which storage replication preserves write-order at the replication target
storage array. In HP P6000 Continuous Access Software terminology, this is known as a DR
Group. In HP P9000 Continuous Access Software terminology this is known as a consistency
group.
Sub Job A Sub Job is component of a Matrix recovery management activate, deactivate, Recovery Group
import or Site import Job. For example, a Site activate Job would include a Recovery Group
activate Sub Job for each Recovery Group that is activated on that site, and each Recovery Group
activate Sub Job would include a logical server activate Sub Job for each logical server in that
Recovery Group.
unplanned failover A failover of all Recovery Group Sets from one site to another site, initiated in response to an
unforeseen event that caused an outage at the site where the Recovery Group Sets where activated.
User Defined
storage
Matrix recovery management provides a User Defined storage adapter interface specification to
enable one-step Matrix recovery management failover capability for storage types that are
supported by Matrix OE, but not yet integrated with Matrix recovery management.
User Defined
Storage
Management
Servers
When you install a storage adaptor in your Matrix recovery management configuration for a
storage type other than HP 3PAR, HP P6000, or HP P9000, you can define (and edit) Storage
Management Servers based on that storage adaptor. These are referred to as User Defined
Storage Management Servers in a Matrix recovery management configuration. For example, if
you create and install a storage adaptor named EMC, the Storage server type drop-down menu
for configuring a Storage Management Server will allow you to select EMC as the storage server
type. For more information, see the HP Matrix Operating Environment 7.3 Getting Started Guide
available at Enterprise Information Library.
VC-hosted logical
server
A logical server running on a c-Class blade equipped with HP Virtual Connect.
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