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Replicating Virtual Machines 2

Before you create protection groups, you must configure replication on the virtual machines to protect.

You can replicate virtual machines by using either array-based replication, vSphere Replication, or a

combination of both.

This chapter includes the following topics:

“Using Array-Based Replication with Site Recovery Manager,” on page 21

“Using vSphere Replication with Site Recovery Manager,” on page 26

“Using Array-Based Replication and vSphere Replication with Site Recovery Manager,” on page 27

Using Array-Based Replication with Site Recovery Manager

When you use array-based replication, one or more storage arrays at the protected site replicate data to peer

arrays at the recovery site. With storage replication adapters (SRAs), you can integrate

Site Recovery Manager with a wide variety of arrays.

To use array-based replication with Site Recovery Manager, you must configure replication first before you

can configure Site Recovery Manager to use it.

If your storage array supports consistency groups, Site Recovery Manager is compatible with vSphere

Storage DRS and vSphere Storage vMotion. You can use Storage DRS and Storage vMotion to move virtual

machine files within a consistency group that Site Recovery Manager protects. If your storage array does not

support consistency groups, you cannot use Storage DRS and Storage vMotion in combination with

Site Recovery Manager.

You can protect virtual machines that contain disks that use VMware vSphere Flash Read Cache storage.

Since the host to which a virtual machine recovers might not be configured for Flash Read Cache,

Site Recovery Manager disables Flash Read Cache on disks when it starts the virtual machines on the

recovery site. Site Recovery Manager sets the reservation to zero. Before performing a recovery on a virtual

machine that is configured to use vSphere Flash Read Cache, take a note of virtual machine's cache

reservation from the vSphere Web Client. After the recovery, you can migrate the virtual machine to a host

with Flash Read Cache storage and manually restore the original Flash Read Cache setting on the virtual

machine.

Storage Replication Adapters

Storage replication adapters are not part of a Site Recovery Manager release. Your array vendor develops

and supports them. You must install an SRA specific to each array that you use with Site Recovery Manager

on the Site Recovery Manager Server host. Site Recovery Manager supports the use of multiple SRAs.

VMware, Inc.

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DR 5.8 HP Información técnica Pagina 21