High latency seen in ONTAP on FlexGroup constituents
Applies to
- ONTAP
- FlexGroups
Issue
- High latency is seen in qos statistics volume performance show and qos statistics volume latency show as Data latency
- This only happens on FlexGroup volumes with
__in the volume name - Example:
Cluster::> qos statistics volume performance showWorkload ID IOPS Throughput Latency
--------------- ------ -------- ---------------- -----------total- - 1152 21.22MB/s 88.83msVOL1_FG_PRD__.. 8777 282 2.22MB/s 195.11ms
VOL1_FG_PRD__.. 7862 266 9.93MB/s 58.90ms
VOL2_FILE_NON.. 27814 187 169.58KB/s 180.00us
VOL1_FG_PRD__.. 3708 187 6.09MB/s 78.16ms
VOL1_FG_PRD__.. 25459 144 2.72MB/s 118.99ms
volapplicatio.. 27101 82 97.33KB/s 232.00us
VOL1_FILE_UAT.. 5994 5 0KB/s 466.00usCluster::> qos statistics latency show -iterations 0 -rows 10 -refresh-display false -node node1 Policy Group Latency Network Cluster Data Disk QoS Max QoS Min NVRAM Cloud FlexCache SM Sync VA -------------------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- -total- 64.69ms 593.00us 0ms 63.93ms 81.00us 0ms 0ms 89.00us 0ms 0ms 0ms 0ms User-Best-Effort 64.69ms 593.00us 0ms 63.93ms 81.00us 0ms 0ms 89.00us 0ms 0ms 0ms 0ms