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Dell SRDF Introduction

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R1 device states

An R1 device can have the following states for SRDF operations:

  • Ready—The R1 device is ready for SRDF operations. The R1 device can send data across the SRDF links. True even if local mirror(s) of the R1 device are Not Ready for I/O operations.
  • Not Ready (SRDF mirror Not Ready)—The R1 device is Not Ready for SRDF operations.
NOTE:When the R2 device is placed into a Read/Write state to the host, the corresponding R1 device is automatically placed into the SRDF mirror Not Ready state.

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