Skip to main content
NetApp Knowledge Base

Slow share access due to NVLOG Latency on AWS CVO

Views:
163
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
perf
Last Updated:

Applies to

  • CIFS/SMB
  • NFS
  • ONTAP 9
  • Cloud Volumes ONTAP (CVO)

Issue

  • Slowness reported by multiple clients during share access
  • Slowness reported while executing listing commands (Ex : du -sh ) on the host machine.
  • High NVram latency noticed with QOS commands
::> qos statistics volume latency show
Workload       ID    Latency    Network    Cluster       Data       Disk    QoS Max    QoS Min      NVRAM      Cloud  FlexCache  SM Sync         VA     AVSCAN
---------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------  ---------- ---------- ----------
-total-         -     3.51ms   614.00us        0ms   981.00us   412.00us        0ms        0ms  1377.00us   130.00us        0ms        0ms        0ms        0ms
Volume01..  16072     9.72ms    40.00us        0ms   125.00us        0ms        0ms        0ms     9.55ms        0ms        0ms        0ms        0ms        0ms
-total-         -     3.50ms   739.00us        0ms   800.00us   156.00us        0ms        0ms     1.78ms    20.00us        0ms        0ms        0ms        0ms
Volume01..  16072    11.73ms    43.00us        0ms   180.00us        0ms        0ms        0ms    11.51ms        0ms        0ms        0ms        0ms        0ms
-total-         -     4.02ms   639.00us        0ms   971.00us   248.00us        0ms        0ms     2.16ms        0ms        0ms        0ms        0ms        0ms
Volume01..  16072    13.12ms    35.00us        0ms   105.00us        0ms        0ms        0ms    12.98ms        0ms        0ms        0ms        0ms        0ms
-total-         -     4.87ms   463.00us        0ms     1.81ms   320.00us        0ms        0ms     2.26ms    12.00us        0ms        0ms        0ms        0ms
Volume01..  16072     9.00ms   115.00us        0ms   327.00us        0ms        0ms        0ms     8.56ms        0ms        0ms        0ms        0ms        0ms
-total-         -     4.82ms   927.00us        0ms   691.00us   234.00us        0ms        0ms     2.92ms    53.00us        0ms        0ms        0ms        0ms
Volume01..  16072    12.48ms    37.00us        0ms   135.00us        0ms        0ms        0ms    12.31ms        0ms        0ms        0ms        0ms        0ms
-total-         -     3.32ms   721.00us        0ms   904.00us   105.00us        0ms        0ms     1.56ms    32.00us        0ms        0ms        0ms        0ms
Volume01..  16072    11.98ms    41.00us        0ms   121.00us        0ms        0ms        0ms    11.82ms        0ms        0ms        0ms        0ms        0ms
-total-         -     2.91ms   570.00us        0ms   851.00us   110.00us        0ms        0ms  1337.00us    46.00us        0ms        0ms        0ms        0ms
Volume01..  16072    17.55ms    48.00us        0ms   121.00us        0ms        0ms        0ms    17.38ms        0ms        0ms        0ms        0ms        0ms

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.
  • Was this article helpful?