Administrator Guide
Table Of Contents
- Dell EMC Storage Systems Administrator Guide for the metro node appliance
- Contents
- Preface
- CLI Workspace and User Accounts
- Meta Volumes
- System Management
- Thin support in metro node
- Provisioning Storage
- Volume expansion
- Data migration
- About data migrations
- Migrating thin-capable storage
- About rebuilds
- One-time data migrations
- Batch migrations
- Prerequisites
- Creating a batch migration plan
- Checking a batch migration plan
- Modifying a batch migration file
- Starting a batch migration
- Pausing/resuming a batch migration (optional)
- Canceling a batch migration (optional)
- Monitoring a batch migration’s progress
- Viewing a batch migration’s status
- Committing a batch migration
- Cleaning a batch migration
- Removing batch migration records
- Configure the WAN Network
- Cluster Witness
- Consistency Groups
- Performance and Monitoring
- Metro node with active-passive storage arrays
Cluster Witness
The support of Cluster Witness(CW) enables the metro node solution to improve overall environment availability by arbitrating a
pure communication failure between two primary sites, and an actual site failure in a multi-site architecture. For 7.0.1 and later,
the systems can now rely on a component that is known as metro node Witness. The Witness is an optional component that is
designed to be deployed in the customer environments where regular preference rule sets are insufficient to provide seamless
zero or near-zero RTO storage availability in the presence of site disasters, metro node cluster and inter-cluster failures. For
more information related to configuration of Cluster Witness (CW), see the Cluster Witness Configuration Guide for the metro
node appliance, which is available at SolVe (https://solveonline.emc.com/solve/home/74).
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