Dell PowerVault MD3800f Manuel d'utilisateur télécharger pdf (Page 8)

Protected And Recovery Site Installation Requirements

As part of configuring the recovery solution described in this guide, the required VMware platforms must be installed on

both the protected (primary site) and recovery (secondary site) host sites. For more information, see

Installing the

Recovery Solution Components

Dell MD Storage Array Installation Requirements

SRM relies on the MD storage array's Remote Replication premium feature to maintain data replication between the

protected site and the recovery site. Replication must be configured on the MD storage array before configuring SRM.

See the corresponding Deployment Guide for your storage array at dell.com/support/manuals.

Virtual Disk Layout Considerations

Before setting up Remote Replication, consider the datastores residing on the virtual disk as well as the virtual machines

residing on the datastore. Remote Replication on the MD storage array functions on a virtual disk-level only; therefore,

any datastores or virtual machines residing on a replicated virtual disk are protected. If no virtual machines require

protection, make sure that your virtual machines-to-datastores-to-virtual disks are designed efficiently. For example, in

the figure Single Virtual Disk Replication, a 400 GB virtual disk is used to house a single datastore containing four virtual

machines. However, only VM1 and VM4 require protection. If a single virtual disk containing a single datastore is

created, all four virtual machines will be protected, but at a cost of replicating 400 GB of data across the network link to

a remote storage array.

Figure 2. Single Virtual Disk Replication

Using the same protection requirements, figure Multiple Virtual Disk Replication shows that the multiple virtual disks

created and only the virtual machines that require protection being replicated. The result is less data moving across the

network, as well as increased ability to control individual failovers of VM1 or VM4, if necessary.

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Dell PowerVault MD3800f Manuel d'utilisateur Page 8