Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

To use the standard Remote Replication premium feature, you must have:

• Two storage arrays with write access and both these storage arrays must have sufficient space to replicate data between them.
• Each storage must have a dual-controller Fibre Channel or iSCSI configuration (single-controller configurations are not supported).
• Fibre Channel Connection Requirements — You must attach dedicated remote replication ports to a Fibre Channel fabric environment. In addition, these ports must support the Name Service.
• You can use a fabric configuration that is dedicated solely to the remote replication ports on each RAID controller module. In this case, host systems can connect to the storage arrays using fabric.
• Fibre Channel Arbitrated Loop (FC-AL), or point-to-point configurations, are not supported for array-to-array communications.
• Maximum distance between the local site and remote site is 10 km (6.2 miles), using single-mode fibre Gigabit interface converters (GBICs) and optical long-wave GBICs.
• iSCSI connection considerations:
  • iSCSI does not require dedicated ports for replication data traffic
  • iSCSI array-to-array communication must use a host-connected port (not the Ethernet management port).
  • The first port that successfully establishes an iSCSI connection is used for all subsequent communication with that remote storage array. If that connection subsequently fails, a new session is attempted using any available ports.