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11 TR1059 | V4.0 | Exchange 2013 Data Protection with EqualLogic Auto-Snapshot Manager/Microsoft Edition 4.6 and PS
Series Arrays
5 HIT groups in DAG environments
In DAG environments, all DAG nodes in a HIT Group have a reciprocal relationship. That is, adding DAG
node B to the ASM/ME instance on DAG node A will automatically add DAG node A to the ASM/ME
instance on DAG node B. You must always add an entire DAG to a HIT Group as opposed to a subset of
DAG nodes. ASM/ME will then automatically set up the trust relationship between each DAG node. If you
only add a subset of DAG nodes to a HIT Group, then data restoration, schedule, and Smart Copy
operations could result in fatal errors. If you run ASM/ME from a DAG node, ASM/ME will warn you if you
haven't created a HIT Group that includes all the other DAG nodes.
For more information on Dell EqualLogic Host Integration Tools for Microsoft, please refer to the
Dell
EqualLogic Host Integration Tools/Microsoft Edition - Installation and User's Guide – Version 4.6
and the
Dell EqualLogic Host Integration Tools for Microsoft Windows
®
– Release Notes – Version 4.6 on the Dell
EqualLogic Customer Support site at https://support.Dell.com/EqualLogic
.
5.1 Smart Copy options and backup types
Auto-Snapshot Manager / Microsoft Edition (ASM/ME) creates Smart Copy snapshots, clones, and replicas
(see Figure 3). These Smart Copies leverage the built-in PS Series SAN copy facilities.
All Smart Copies are transportable, and can be mounted on the same or a different server. All servers on
the SAN with ASM/ME installed and access to the Smart Copy backup documents can mount (restore) a
Smart Copy.
5.2 Smart Copy behavior with Exchange Server
With all Smart Copy types there is only one backup type (Figure 3) for use with Exchange. The following
backup type is available with Auto-Snapshot Manager GUI:
• Copy – This backup type creates a copy of the Exchange Server Database with associate logs, and
specifies an out-of-band backup operation that has no effect on application log files or backup
operations.
• For more information on Exchange Server recovery models see Exchange Server TechCenter
document: Exchange Server Disaster Recovery: Disaster Recovery
.