- 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
SRDF read operations
Read operations from the R1 device do not usually involve the SRDF emulations:
- For read “hits” (the production host issues a read to the R1 device, and the data is in local cache), the host emulation reads data from cache and sends it to the host.
- For read “misses” (the requested data is not in cache), the drive emulation reads the requested data from local drives to cache.
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