Statistics are available about I/O requests for LUNs that exceed the igroup throttle. These statistics can be useful for troubleshooting and monitoring performance.
-i time_in_seconds is the interval over which performance statistics are reported. For example, -i 1 reports statistics each second.
-o displays additional statistics, including the number of QFULL messages, or "QFULLS".
system1> lun stats -o -i 1 /vol/vol0/lun1 Read Write Other QFull Read Write Average Queue Partner Lun Ops Ops Ops kB kB Latency Length Ops kB 0 5108 0 0 0 20432 0.62 6.00 0 0 /vol/vol0/lun1 --- 0 7555 0 0 0 30220 0.00 5.05 0 0 /vol/vol0/lun1 --- 0 7535 0 0 0 30144 0.01 5.05 0 0 /vol/vol0/lun1 --- 0 5599 0 0 0 22396 0.38 5.08 0 0 /vol/vol0/lun1 --- 0 6847 0 0 0 27384 0.16 5.07 0 0 /vol/vol0/lun1 --- 0 7460 0 0 0 29836 0.01 5.05 0 0 /vol/vol0/lun1 --- 0 7461 0 0 0 29844 0.01 5.05 0 0 /vol/vol0/lun1 --- 0 4962 0 0 0 19848 0.64 6.00 0 0 /vol/vol0/lun1 --- 0 7379 0 0 0 29516 0.05 5.05 0 0 /vol/vol0/lun1 --- 0 7482 0 0 0 29924 0.01 5.05 0 0 /vol/vol0/lun1 --- 0 7416 0 0 0 29664 0.02 5.05 0 0 /vol/vol0/lun1
system1> lun stats -o /vol/vol0/lun1 /vol/vol0/lun1 (11 hours, 19 minutes, 0 seconds) Read(kbytes) Write(kbytes) Read Ops Write Ops Other Ops QFulls Partner Ops Partner KBytes 488 4875956 60 1218939 84 0 83 448