Skip to main content
NetApp Knowledge Base

Performance impact using Volume Move

  1. Last updated
  2. Save as PDF
Views:
1,691
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
Perf
Last Updated:

Applies to

  • ONTAP 9
  • Volume move

Issue

  • Increased latency can be seen on Disk and/or Data Delay Center (D-blade) in qos statistics output due to volume moves
  • There may also be high cpu activity / utilization seen
  • Note: Data latency during volume move is rare due to being a background process on CPU

Example: The following commands show high disk latency or Data latency while a volume move is running

::> qos statistics volume latency show -volume data -vserver data_svm3
Workload            ID    Latency    Network    Cluster      Data       Disk        QoS
--------------- ------ ---------- ---------- ---------- ---------- ---------- ---------
-total-              -     0.00us     0.00us    0.00us   000.00us        0ms        0ms
data-wid307        307   300.00ms     0.00us       0ms   150.00ms   150.00ms        0ms
-total-              -     0.00us     0.00us    0.00us   000.00us        0ms        0ms
data-wid307        307   892.00ms     0.00us       0ms    92.00ms   800.00ms        0ms
-total-              -     0.00us     0.00us    0.00us   000.00us        0ms        0ms
data-wid307        307   125.00ms     0.00us       0ms    25.00ms   100.00ms        0ms
-total-              -     0.00us     0.00us    0.00us   000.00us        0ms        0ms
data-wid307        307   332.00ms     0.00us       0ms   300.00ms    32.00ms        0ms

::> volume move show
Vserver   Volume     State    Move Phase Percent-Complete Time-To-Complete
--------- ---------- -------- ---------- ---------------- ----------------
data_svm3   data     alert    replicating    98%  Wed Sep 30 22:58:25 2022

 

 

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.