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zpool list shows unexpected DEDUP values on rpool (Doc ID 2605834.1)

Last updated on MAY 11, 2022

Applies to:

Solaris Operating System - Version 11.4 and later
Information in this document applies to any platform.

Symptoms

Deduplication not turned on for any zfs file systems but zpool list shows DEDUP ratio greater than 1.0. Example:

1) None of the zfs file systems show dedup to be turned on:

# zfs get -rHp all rpool | grep dedup
rpool   dedup   off     default
rpool/ROOT      dedup   off     default
rpool/ROOT/<BE1> dedup   off     default
rpool/ROOT/<BE1>/var     dedup   off     default
rpool/ROOT/<BE2> dedup   off     default
rpool/ROOT/<BE3> dedup   off     default
rpool/ROOT/<BE2>/var     dedup   off     default
rpool/ROOT/<BE3>/var     dedup   off     default

...

 

2) However, zpool list shows that some deduplication is taking place:

# zpool list rpool
NAME  SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
rpool 498G  307G 191G 61% 1.09x ONLINE -

Cause

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In this Document
Symptoms
Cause
Solution


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