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Reword the dedup limitation for Edon-R

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The old wording was effectively "You can not use this (except you can)",
which just seems confusing.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Closes #8626
This commit is contained in:
Richard Laager 2019-04-14 21:19:36 -05:00 committed by Brian Behlendorf
parent 393363c5ec
commit 7886aa8a79
1 changed files with 2 additions and 2 deletions
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4
man/man5/zpool-features.5
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@ -652,8 +652,8 @@ DEPENDENCIES extensible_dataset
This feature enables the use of the Edon-R hash algorithm for checksum,
including for nopwrite (if compression is also enabled, an overwrite of
a block whose checksum matches the data being written will be ignored).
In an abundance of caution, Edon-R can not be used with dedup
(without verification).
In an abundance of caution, Edon-R requires verification when used with
dedup: \fBzfs set dedup=edonr,verify\fR. See \fBzfs\fR(8).
Edon-R is a very high-performance hash algorithm that was part
of the NIST SHA-3 competition. It provides extremely high hash