4 node, 8 host ports, 8 disk ports, 8 cage 7400, mostly FC ( 160 ) with some SSD for a handful of AO LUNs.
statpd -d 5 -p -devtype FC Noticed during some benchmarks for some new software that disk latency was 8ms - 10ms ( Cur and Avg, total ). Now it's 11ms - 13ms.
statvlun -vvsum -ni -rw -d 5 Looking at all LUN's ( well, all active LUNs ) for total, it's only 1.65ms to 1.25ms .
statport -rw -ni -disk -d 5 Also, looking at the ports I see 9.01ms - 6.16ms ( Cur - Avg for total ).
Finally, looking at the subset of LUNs doing the actual benchmark, they are 3.39ms to 1.92ms and floated up to 6ms and even 10ms and a little higher at times.
All that to ask: when looking at all PDs, all VVs and all Ports, why aren't they a bit closer together in their service times?
Any cause for concern when PDs ( or VVs or Ports ) get over a certain time?
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