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What Are The Available Performance Types In Symstat Command? |
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Answer» REQUESTS: REPORTS I/O requests and throughput for selected devices, directors, or SRDF/a session. (This is the default TYPE; if no type is specified REQUESTS is used.) BACKEND: Reports back-end I/O requests and throughput for selected devices. PORT: Reports performance statistics for a director port. ISCSI Report Gig-E NETWORK statistics. CACHE: Reports cache activity for selected front-end or remote link directors, or SRDF/A sessions. MEMIO: Reports cache memory to disk activity for selected devices. PATH Report R-Copy path information for no incremental sessions. Symmetrix arrays that have all or some incremental sessions will report an error. CYCLE: Report cycle summary information for SRDF-A sessions. DISK: Reports back-end I/O requests and throughput for selected disks. PREFETCH: Reports track prefetch disk activity for selected back-end director’s only.DMSP Reports dynamic mirroring service policy (DMSP) statistics for the selected DEVICE(s). RDF: Reports SRDF statistics from the perspective of RA groups, devices, or directors. REQUESTS: Reports I/O requests and throughput for selected devices, directors, or SRDF/a session. (This is the default type; if no type is specified REQUESTS is used.) BACKEND: Reports back-end I/O requests and throughput for selected devices. PORT: Reports performance statistics for a director port. ISCSI Report Gig-E network statistics. CACHE: Reports cache activity for selected front-end or remote link directors, or SRDF/A sessions. MEMIO: Reports cache memory to disk activity for selected devices. PATH Report R-Copy path information for no incremental sessions. Symmetrix arrays that have all or some incremental sessions will report an error. CYCLE: Report cycle summary information for SRDF-A sessions. DISK: Reports back-end I/O requests and throughput for selected disks. PREFETCH: Reports track prefetch disk activity for selected back-end director’s only.DMSP Reports dynamic mirroring service policy (DMSP) statistics for the selected device(s). RDF: Reports SRDF statistics from the perspective of RA groups, devices, or directors. |
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