Skip to main content
NetApp Knowledge Base

How concurrency can impact throughput performance with Data ONTAP 7-Mode

  1. Last updated
  2. Save as PDF
Views:
200
Visibility:
Public
Votes:
0
Category:
data-ontap-7
Specialty:
7dot
Last Updated:

Applies to

  • DATA ONTAP 7-Mode

Description

  • When reads or writes are slow for the host, Little's Law:  N (concurrency) = λ (ops) * W (wait time in seconds) can be applied to determine concurrency of a volume.
  • This is useful because it is a quick way to measure if ONTAP is getting enough workload or a delay exists at network or host using math.

Note: W is short for wait time, but ONTAP uses average response time which is a slightly different measurement than client wait time. The concept is the same in practice.

 

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.
Scan to view the article on your device