Dell EMC Metro node 7.0.1 Product Guide

Metro HA (without cross-connect)

Combine metro node Metro HA with host failover clustering technologies such as VMware HA to create fully automatic application restart for any site-level disaster.

Metro node Metro/VMware HA configurations:

• Significantly reduce the Recovery Time Objective (RTO). In some cases, RTO can be eliminated.
• Ride through any single component failure (including the failure of an entire storage array) without disruption.
• When VMware Distributed Resource Scheduler (DRS) is enabled, distribute workload spikes between data centers, alleviating the need to purchase more storage.
• Eliminate the requirement to stretch the Fiber Channel fabric between sites. You can maintain fabric isolation between the two sites.

In this deployment, virtual machines can write to the same distributed device from either cluster and move between two geographically disparate locations.

If you use VMware Distributed Resource Scheduler (DRS) to automate load distribution on virtual machines across multiple ESX servers, you can move a virtual machine from an ESX server attached to one metro node cluster to an ESX server attached to the second metro node cluster, without losing access to the underlying storage.