Skip to main content
NetApp Knowledge Base

Do RAID scrubs hurt performance?

  1. Last updated
  2. Save as PDF
Views:
934
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
Perf
Last Updated:

Applies to

All versions of ONTAP or Data ONTAP

Answer

  • No
  • Raid scrubs, as configured by default, are made to do background checking for media or parity issues.
  • Starting in 2003, a feature was introduced to check the disk load in bug 73250 to Data ONTAP 6.5.2
    • Since that older release, Data ONTAP and now ONTAP provide heavy throttling of raid scrubs in the presense of user work or other backgroud work such as SnapMirror or deduplication

Additional Information

 

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.