When implementing SRDF/Metro with Array Witness, what is a requirement of the witness array?
When implementing SRDF/Metro with Array Witness, what is a requirement of the witness array?
When implementing SRDF/Metro with Array Witness, it is required to have an empty RDF group from the witness to the source and target devices. Having an empty RDF group ensures no data is actively being replicated through the witness; rather, it is only monitoring the status of the SRDF pairs.
The Array Witness method requires two SRDF groups: one between the R1 array and the witness array, and a second between the R2 array and the witness array. A witness group does not contain any devices. https://www.dell.com/support/manuals/en-vn/powermax-2000/esd_p_srdf_intro/array-witness?guid=guid-a0a5860e-4aa7-43a8-aa3c-5b8937ccbfac&lang=en-us