This section provides the procedures for configuring the Dell SRDF Adapter to work with Site Recovery Manager.
Configuring a locally attached PowerMax array
When configuring a PowerMax array that is locally attached to the server running VMware Site Recovery Manager, specify Local in the SYMAPI Server field in the Array Manager configuration wizard of VMware Site Recovery Manager.
Cascaded and concurrent configurations
Follow the guidelines in the table below for cascaded and concurrent configurations.
Table 1. Concurrent and cascaded configurations This table lists concurrent and cascaded configurations.
Three-site (initial configuration)
Three-site (after reprotect)
R11 -> R2 (first mirror)
R11 -> R2 (second mirror)
R1 -> R21 (first mirror)
R21 -> R2 (second mirror)
Site Recovery Manager Recovery Site
Synchronous
Asynchronous
Synchronous
Asynchronous
Synchronous
Synchronous
Asynchronous
Adaptive Copy - DISK
Asynchronous
Asynchronous
Synchronous
Adaptive Copy - DISK
Synchronous
Adaptive Copy - DISK
Synchronous
Synchronous
Synchronous
Synchronous
Adaptive Copy - DISK
Synchronous
Asynchronous
Asynchronous
Asynchronous
Adaptive Copy - DISK
Asynchronous
Asynchronous
Adaptive Copy - DISK
Asynchronous
Adaptive Copy - DISK
Asynchronous
Active
Asynchronous
N/A
N/A
N/A
R1 -> R21 (first mirror)
R21 -> R2 (second mirror)
R11 -> R2 (first mirror)
R11 -> R2 (second mirror)
Site Recovery Manager Recovery Site
Synchronous
Asynchronous
Synchronous
Asynchronous
Synchronous
Synchronous
Adaptive Copy - DISK
Synchronous
Adaptive Copy - DISK
Synchronous
Asynchronous
Adaptive Copy - DISK
Asynchronous
Adaptive Copy - DISK
Asynchronous
R1 -> R21 (first mirror)
R21 -> R2 (second mirror)
R1 -> R21 (first mirror)
R21 -> R2 (second mirror)
Site Recovery Manager Recovery Site
Synchronous
Asynchronous
N/A
N/A
Asynchronous (In this scenario, Reprotect is not supported. The user is required to manually fail back to the original site.)
Configuring SRDF/Star
SRDF/Star is a data-protection and failure-recovery solution that covers three geographically dispersed data centers in a triangular topology.
Consider the following when configuring SRDF/Star:
Reconfiguration of the SRDF/Star topology from Concurrent to Cascaded, and from Cascaded to Concurrent, is not a supported workflow. If reconfiguration is needed, it has to be done outside SRA.
The SRDF/Star commands in SRA might take multiple hours. It depends on the amount of replication data.
SRA supports the following valid SRDF/Star states for device discovery:
Table 2. Valid SRDF/Star states for device discoveryThis table lists valid SRDF/Star states for device discovery.
SRDF/Star state
Sync target site state
Async target site state
Protected
Protected
Protected
Tripped
PathFailed
PathFailed
Tripped
PathFailed
Protected
Tripped
Protected
PathFailed
Unprotected
Disconnected
Protected
Unprotected
Connected
Protected
Unprotected
Protected
Protected
Unprotected
Halted
Halted
Unprotected
Isolated
Protected
Unprotected
Protected
Isolated
Unprotected
Isolated
Disconnected
SRA supports the following SRDF/Star states for Site Recovery Manager operations, such as Recovery and Test Recovery:
Table 3. Valid SRDF/Star states for recovery and test recovery operations for sync target siteThis table lists valid SRDF/Star states for recovery and test recovery operations for sync target sites.
SRDF/Star state
Sync target site state
Async target site state
Protected
Protected
Protected
Tripped
PathFailed
PathFailed
Tripped
PathFailed
Protected
Tripped
Protected
PathFailed
Only if site A is down, or partitioned from site B, can the mode of operation change from Cascaded Star to Concurrent Star. To return the configuration to its original Cascaded Star mode, you must perform a reconfiguration, outside of SRA.
Table 4. Valid SRDF/Star states for recovery and test recovery operations for async target site This table lists valid SRDF/Star states for recovery and test recovery operations for async target sites.
SRDF/Star State
First target site state
Second target site state
Protected
Protected
Protected
Tripped
PathFailed
PathFailed
Tripped
PathFailed
Protected
Tripped
Protected
PathFailed
Unprotected
Protected
Connected
Only if Site B is down, can the mode of operation change from Cascaded Star to Concurrent Star. To return the configuration to its original Cascaded Star mode, you must perform a reconfiguration, outside of SRA.
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