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Date:      Mon, 01 Oct 2012 14:57:28 +0100
From:      Johannes Totz <johannes@jo-t.de>
To:        freebsd-fs@freebsd.org
Subject:   zfs estimated size off
Message-ID:  <k4c7g7$ajn$1@ger.gmane.org>

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Hi,

The estimated size by zfs send is always far off (for me). For example:

#zfs list -t all -r panzer/home/jo/hgrepos

NAME                                     USED  REFER
panzer/home/jo/hgrepos                  31.2G  29.4G
[...]
panzer/home/jo/hgrepos@fredsync-120914   202M  29.3G
panzer/home/jo/hgrepos@fredsync-121001      0  29.4G


#zfs send -Rv -I @fredsync-120914 panzer/home/jo/hgrepos@fredsync-121001

send from @fredsync-120914 to panzer/home/jo/hgrepos@fredsync-121001
estimated size is 494M
total estimated size is 494M
TIME        SENT   SNAPSHOT
14:31:36   2.68M   panzer/home/jo/hgrepos@fredsync-121001
[...]
14:36:56    791M   panzer/home/jo/hgrepos@fredsync-121001


This is on: 9-stable, r239951.

I don't use that estimate so it's not a problem for me. Just thought
this is weird.



Johannes




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