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# RDFA Groups analyze view (Diagnostic and Historical)

SRDF groups are used to define relationships between two arrays that are logically connected using Symmetrix |Remote Data Facility (SRDF). SRDF/A groups are SRDF groups that are configured with devices running in asynchronous mode.

Table 1. RDFA Groups analyze view (Diagnostic and Historical)
Attribute | Description
--- | ---
ID | Displays the SRDF/A group number
RDFA Group Label | Displays the SRDF/A group name
RDF Response Time (ms) | SRDF response time (in milliseconds)
Duration of Last Cycle | The number of seconds for the last cycle in the session
RDF R1 to R2 MBs/sec | The throughput in MB per second from the R1 to the R2 for the SRDF/A group
RDF/A WP Count | The number of cache slots in use by the SRDF/A group
Local WP Count | The number of write pending slots waiting to be de-staged to disk - the R1 should be less than or equal to the system write pending count.
DSE Used Tracks | The number of tracks used by DSE for the SRDF/A group
% Compressed MBs Sent | The percent of total MBs sent by the director that were compressed MBs