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?
> _______________________________________________
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> http://lists.freebsd.org/mailman/listinfo/freebsd-fs
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>
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