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From: Marcus Sundman <sundman@iki.fi>
To: linux-btrfs@vger.kernel.org
Cc: Jim Salter <jim@jrs-s.net>
Subject: Re: No space left on device (again)
Date: Tue, 25 Feb 2014 21:59:58 +0200	[thread overview]
Message-ID: <530CF63E.9080008@iki.fi> (raw)
In-Reply-To: <530CDB7F.9020807@jrs-s.net>

On 25.02.2014 20:05, Jim Salter wrote:
> 370GB of 410GB used isn't really "fine", it's over 90% usage.

Still, 45 gigs should be free there. If those 45 gigs aren't really 
there then it shouldn't say they are there, imho.

> That said, I'd be interested to know why btrfs fi show /dev/sda3 shows 
> 412.54G used, but btrfs fi df /home shows 379G used...

The former also says "bytes used 371.11GB" and there's not *that* much 
difference between "371.11" and "369.61" gigs. The devid line seems to 
always say "412.54GB used 412.54GB" no matter how much is actually in use.
I have no idea what these numbers actually mean.

> On 02/25/2014 11:49 AM, Marcus Sundman wrote:
>> Hi
>>
>> I get "No space left on device" and it is unclear why:
>>
>>> # df -h|grep sda3
>>> /dev/sda3       413G  368G   45G  90% /home
>>> # btrfs filesystem show /dev/sda3
>>> Label: 'home'  uuid: 46279061-51f4-40c2-afd0-61d6faab7f60
>>>     Total devices 1 FS bytes used 371.11GB
>>>     devid    1 size 412.54GB used 412.54GB path /dev/sda3
>>>
>>> Btrfs v0.20-rc1
>>> # btrfs filesystem df /home
>>> Data: total=410.52GB, used=369.61GB
>>> System: total=4.00MB, used=64.00KB
>>> Metadata: total=2.01GB, used=1.50GB
>>> #
>>
>> So, 'data' and 'metadata' seem to be fine(?), but 'system' is a bit 
>> low. Is that it? If so, can I do something about it? Or should I look 
>> somewhere else?
>>
>> I really wish I could get a warning before running out of disk space, 
>> instead of everything breaking suddenly when there seems to be lots 
>> and lots of space left.
>>
>> - Marcus
>>
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  reply	other threads:[~2014-02-25 20:00 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-25 16:49 No space left on device (again) Marcus Sundman
2014-02-25 18:05 ` Jim Salter
2014-02-25 19:59   ` Marcus Sundman [this message]
2014-02-25 20:19   ` Hugo Mills
2014-02-25 20:27     ` Marcus Sundman
2014-02-25 20:30       ` Josef Bacik
2014-02-26 10:38         ` Sander
2014-02-27  0:16         ` Marcus Sundman
2014-02-27  1:17           ` Josef Bacik
2014-02-27  7:48           ` Hugo Mills
2014-02-25 20:30       ` cwillu
2014-02-25 20:40       ` Hugo Mills

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