- Notes, cautions, and warnings
- Preface
- Introduction
- Disaster recovery
- High availability
- Data migration
- SRDF I/O operations
- SRDF write operations
- SRDF read operations
- SRDF/A resilience and performance features
- Management tools
- More information
Dell SRDF Introduction
Write pacing
SRDF/A write pacing reduces the likelihood that an active SRDF/A session drops due to cache exhaustion. Write pacing dynamically paces the host I/O rate so it does not exceed the SRDF/A session's service rate. This prevents cache overflow on both the R1 and R2 sides.
Use write pacing to maintain SRDF/A replication with reduced resources when replication is more important for the application than minimizing write response time.
You can apply write pacing to groups, or devices for individual RDF device pairs that have TimeFinder/Snap or TimeFinder/Clone sessions off the R2 device.
NOTE:Write pacing is not available in configurations that include arrays running
PowerMaxOS 10 (6079).
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