From: jck <jck@archlinux.us>
To: linux-btrfs@vger.kernel.org
Subject: Re: Disk space usage displayed incorrectly?
Date: Tue, 13 Jul 2010 10:47:16 +0530 [thread overview]
Message-ID: <AANLkTilP-RAvt9Zrc1vTnWjwL1_qIOrAlhfaA4Ir-Bgc@mail.gmail.com> (raw)
In-Reply-To: <AANLkTinsrvqcWpVf69ePpSHEKmZPKCxh5n2892UwB4kY@mail.gmail.com>
I finally understood whats going on, thank you.
On Tue, Jul 13, 2010 at 9:32 AM, jck <jck@archlinux.us> wrote:
> I ran btrfs filesystem balance but now it has become like this:
>
>
> Metadata: total=3D5.00GB, used=3D507.25MB
> Data: total=3D113.58GB, used=3D89.51GB
> System: total=3D32.00MB, used=3D24.00KB
>
> On Tue, Jul 13, 2010 at 7:23 AM, jck <jck@archlinux.us> wrote:
>> I tested it and the partition gets filled at 123.58 GB, the 60GB is
>> getting wasted. is there anything i can do about this?
>>
>> On Tue, Jul 13, 2010 at 6:46 AM, Chris Mason <chris.mason@oracle.com=
> wrote:
>>> On Sat, Jul 10, 2010 at 07:22:26AM +0530, jck wrote:
>>>> Hello,
>>>> when i check diskspace usage of a btrfs partition using df i get t=
he
>>>> wrong free space, this is expected i think.
>>>
>>> We do try to take the raid levels into account during df, but only =
for
>>> the space that is already allocated.
>>>
>>>> However even when i use 'btrfs filesystem df' I get wrong freespac=
e:
>>>> Data: total=3D123.58GB, used=3D87.31GB
>>>> Metadata: total=3D61.00GB, used=3D396.29MB
>>>> System: total=3D32.00MB, used=3D16.00KB
>>>>
>>>> Does this mean that after the 123 GB of 'Data' fills up I wont be =
able
>>>> to add more stuff to the partition?
>>>> I'm using btrfs-progs-git (jul 10)
>>>
>>> This does reflect the space that is allocated, but the drive itself=
may
>>> have more free space. =A0btrfs filesystem show will give you a few =
more
>>> details.
>>>
>>> Basically btrfs allocates from the drive in chunks of about 1GB and=
then
>>> puts the file data or metadata into those chunks. =A0So if you do a=
mkfs
>>> and then create one file, you might have 1TB of space on the drive =
that
>>> hasn't been allocated yet.
>>>
>>> -chris
>>>
>>>
>>
>
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" =
in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2010-07-13 5:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-10 1:52 Disk space usage displayed incorrectly? jck
2010-07-13 1:16 ` Chris Mason
2010-07-13 1:53 ` jck
2010-07-13 4:02 ` jck
2010-07-13 5:17 ` jck [this message]
[not found] <AANLkTinA2QCqlrGoRvUn_uAZ1NxPm65DksQQ9YBeHrqh@mail.gmail.com>
2010-07-10 1:42 ` jck
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=AANLkTilP-RAvt9Zrc1vTnWjwL1_qIOrAlhfaA4Ir-Bgc@mail.gmail.com \
--to=jck@archlinux.us \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).