- 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
R2 device states
An R2 device presents one of the following states to a host connected to it:
- Read Only (Write Disabled)—The R2 device responds Write Protected to the host for all write operations to that device.
- Read/Write (Write Enabled)—The R2 device is available for read/write operations. This state is possible in recovery or parallel processing operations.
- Not Ready—The R2 device responds Not Ready (Intervention Required) to the host for read and write operations to that device.
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