From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Kirubakaran Kaliannan <kirubak@zadarastorage.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: statvfs() return large f_bavail on a 10TB drive
Date: Fri, 13 Apr 2018 08:43:13 -0700 [thread overview]
Message-ID: <20180413154313.GC32099@magnolia> (raw)
In-Reply-To: <c126c0a025db7e4011b4461c1ff26601@mail.gmail.com>
On Fri, Apr 13, 2018 at 12:10:19PM +0530, Kirubakaran Kaliannan wrote:
> Hi All,
>
> I have couple of xfs filesystem on a 10TB STAT drive.
>
> After 50% of filesystem is full, the df –kH is returning a large f_bavail.
>
>
> Filesystem Size Used Avail Use% Mounted on
> /dev/dm-4 10T -12T 22T - /mnt/a
> /dev/dm-3 10T -12T 22T - /mnt/b
>
> I tried statvfs() and got the same large f_bavail as well,
>
> total filesystem size = 9763506176 KB
> total Available size = 21279656740 KB
21279656740KB = 0x100000000000 | (about 50% of the space) ?
Bitflip?
--D
> total used size = -11516150564 KB
>
> We are using Ubuntu 3.18.19 Linux kernel/xfs.
>
> If I unmount and mount the filesysem back, the f_bavail values are back to
> normal.
>
> Can you please point me, if this is something a known issue got fixed in
> XFS in the later version, or any lead may help.
> It is difficult at this point of time to upgrade the XFS for this specific
> issue.
>
> Thanks,
> -kiru
> --
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next prev parent reply other threads:[~2018-04-13 15:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-13 6:40 statvfs() return large f_bavail on a 10TB drive Kirubakaran Kaliannan
2018-04-13 15:43 ` Darrick J. Wong [this message]
2018-04-23 4:26 ` Kirubakaran Kaliannan
2018-04-30 22:26 ` Darrick J. Wong
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