Cluster Server 7.4 Agent for EMC SRDF Configuration Guide - Windows
- Introducing the agent for EMC SRDF
- Configuring the agent for EMC SRDF
- Testing VCS disaster recovery support with EMC SRDF
- How VCS recovers from various disasters in an HA/DR setup with EMC SRDF
- Testing the global service group migration
- Testing disaster recovery after host failure
- Testing disaster recovery after site failure
- Performing failback after a node failure or an application failure
- Performing failback after a site failure
- Setting up fire drill
Typical EMC SRDF setup in a VCS cluster
The following figure displays a typical cluster setup in a SRDF environment.
VCS clusters using SRDF for replication uses the following hardware infrastructure:
The primary array has one or more R1 devices. A Fibre Channel or SCSI directly attaches these devices to the EMC Symmetrix array that contains the SRDF R1 devices.
The secondary array has one or more R2 devices. A Fibre Channel or SCSI directly attaches these devices to a EMC Symmetrix array that contains the SRDF R2 devices. The R2 devices are paired with the R1 devices in the R1 array. The R2 devices and arrays must be at a significant distance to survive a disaster that may occur at the R1 side.
The arrays at both the primary and secondary sites also have the BCV or target devices configured and associated with the corresponding replication devices at each site.
Network heartbeating between the two data centers to determine their health; this network heartbeating could be LLT or TCP/IP.
In a replicated data cluster environment, all hosts are part of the same cluster. You must connect them with the dual and dedicated networks that support LLT.
In a global cluster environment, you must attach all hosts in a cluster to the same EMC Symmetrix array.