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Understanding the ZFS Pool Scrub Operation, Tuning Scrub Performance, and Troubleshooting Scrub Issues (Doc ID 1496376.1)

Last updated on MAY 17, 2023

Applies to:

Solaris Operating System - Version 10 6/06 U2 and later
Oracle Solaris on x86 (32-bit)
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)


This document explains how the ZFS pool scrub operation works, how to tune the performance, and how to troubleshoot issues relating to the ZFS scrub operation


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In this Document
 What does the scrub operation do?
 Factors affecting zpool scrub performance
 Scrub Traversal Order
 Troubleshooting zpool scrub issues
 Changing the zpool scrub performance
 Scrub and DeDup (DTT) Interaction
 Scrub FAQ
 Reference Material
 See Also
 Oracle Solaris ZFS Resource Center

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