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Date:      Fri, 27 Sep 2013 14:05:37 +0100
From:      "Steven Hartland" <killing@multiplay.co.uk>
To:        "Attila Nagy" <bra@fsn.hu>, <freebsd-fs@FreeBSD.org>
Subject:   Re: the exponential file system from hell
Message-ID:  <34A97DEE00E94B1F8EC3028B61BEF621@multiplay.co.uk>
References:  <52457A32.2090105@fsn.hu>

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Pro tip don't use an insulting subject if your looking for help.

    Regards
    Steve
----- Original Message ----- 
From: "Attila Nagy" <bra@fsn.hu>
To: <freebsd-fs@FreeBSD.org>
Sent: Friday, September 27, 2013 1:29 PM
Subject: zfs: the exponential file system from hell


> Hi,
> 
> Did anyone try to fill a zpool with multiple zfs in it and graph the 
> space accounted by df and zpool list?
> If not, here it is:
> https://picasaweb.google.com/104147045962330059540/FreeBSDZfsVsDf#5928271443977601554
> 
> The zpool in question:
>         NAME        STATE     READ WRITE CKSUM
>         mnt         ONLINE       0     0     0
>           raidz2-0  ONLINE       0     0     0
>             da1     ONLINE       0     0     0
>             da2     ONLINE       0     0     0
>             da3     ONLINE       0     0     0
>             da4     ONLINE       0     0     0
>           raidz2-1  ONLINE       0     0     0
>             da5     ONLINE       0     0     0
>             da6     ONLINE       0     0     0
>             da7     ONLINE       0     0     0
>             da8     ONLINE       0     0     0
>           raidz2-2  ONLINE       0     0     0
>             da9     ONLINE       0     0     0
>             da10    ONLINE       0     0     0
>             da11    ONLINE       0     0     0
>             da13    ONLINE       0     0     0
> 
> And the zfs-es on it:
> NAME     USED  AVAIL  REFER  MOUNTPOINT
> mnt     23.3G      0  53.8K  /mnt
> mnt/p1  3.89G      0  3.89G  /mnt/p1
> mnt/p2  3.89G      0  3.89G  /mnt/p2
> mnt/p3  3.89G      0  3.89G  /mnt/p3
> mnt/p4  3.89G      0  3.89G  /mnt/p4
> mnt/p5  3.89G      0  3.89G  /mnt/p5
> mnt/p6  3.89G      0  3.89G  /mnt/p6
> 
> I have evenly filled the six zfs in 1/100th percents of the full space 
> available, and graphed the results of zpool list's capacity and df's 
> capacity.
> The x scale is the real space usage in percents.
> 
> It's quite annoying when df says the file systems are 20% full, while in 
> reality, they are at 60%.
> 
> Any chance that it will be solved?
> _______________________________________________
> freebsd-fs@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-fs
> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
>

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