Users report slowness on volumes with TSSE enabled
Applies to
- ONTAP 9
- TSSE
- AFF
- C-series
Issue
Slowness reported on a volume with high latency recorded on Data and DISK IO subsystems from the qos statistics.
cluster::> qos statistics volume latency show -volume volume01_copy -vserver vserver01_copy
Workload ID Latency Network Cluster Data Disk QoS Max QoS Miche SM Sync
--------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ------------ ----------
-total- - 3.02ms 92.00us 52.00us 1.51ms 1345.00us 0ms 0m0ms 0ms
volume01_copy.. 34292 7.22ms 83.00us 131.00us 3.58ms 3.42ms 0ms 0m0ms 0ms
-total- - 20.04ms 100.00us 77.00us 10.99ms 8.85ms 0ms 0m0ms 0ms
volume01_copy.. 34292 45.47ms 101.00us 160.00us 24.98ms 20.21ms 0ms 0m0ms 0ms
-total- - 42.98ms 93.00us 79.00us 23.21ms 19.57ms 0ms 0m0ms 0ms
volume01_copy.. 34292 272.38ms 205.00us 425.00us 147.51ms 124.13ms 0ms 0m0ms 0ms
-total- - 24.17ms 63.00us 67.00us 13.27ms 10.77ms 0ms 0m0ms 0ms
volume01_copy.. 34292 140.32ms 103.00us 274.00us 77.27ms 62.67ms 0ms 0m0ms 0ms
-total- - 7.83ms 75.00us 34.00us 4.17ms 3.54ms 0ms 0m0ms 0ms
volume01_copy.. 34292 103.56ms 128.00us 364.00us 55.45ms 47.61ms 0ms 0m0ms 0ms
-total- - 4.14ms 141.00us 18.00us 2.25ms 1.72ms 0ms 0m0ms 0ms
volume01_copy.. 34292 102.43ms 148.00us 445.00us 56.22ms 45.62ms 0ms 0m0ms 0ms
-total- - 4.14ms 53.00us 14.00us 2.21ms 1.86ms 0ms 0m0ms 0ms
volume01_copy.. 34292 99.79ms 117.00us 277.00us 53.33ms 46.06ms 0ms 0m0ms 0ms