Users Guide
Table Of Contents
- Dell EMC Storage Systems Product Guide for the metro node appliance
- Contents
- Figures
- Tables
- Preface
- Introducing metro node
- Metro node use cases
- Features in metro node
- Integrity and resiliency
- Software and upgrade
Array A Array B Array C
VPLX-000380
Virtual Volume
Figure 6. Metro node technology refresh
Because the virtual machine is addressing its data to the abstracted virtual volume, its data continues to flow to the virtual
volume without any need to change the address of the data store.
Although this example uses virtual machines, the same is true for traditional hosts. Using metro node, the administrator can
move data used by an application to a different storage array without the application or server being aware of the change.
This allows you to change the back-end storage arrays transparently, without interrupting I/O.
Availability
Metro node features allow the highest possible resiliency in the event of an outage. The following figure shows a metro node
Metro configuration where storage has become unavailable at one of the cluster sites.
Metro node use cases
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