On 19 November 2013 20:12, LaSalle, Jurvis
wrote:
>
> On 11/19/13, 2:10 PM, "Wolfgang Hennerbichler" wrote:
>
> >
> >On Nov 19, 2013, at 3:47 PM, Bernhard Glomm
> >wrote:
> >
> >> Hi Nicolas
> >> just fyi
> >> rbd format 2 is not supported yet by the linux kernel (module)
> >
> >I believe this i
Yes, I understand that creating an image larger than the cluster may
sometimes be considered a feature. I am not suggesting it should be
forbidden, simply that it should display a warning message to the operator.
Full disc: I am not a Ceph dev, this is a simple user's opinion
Best regards,
Ni
--
http://www.wogri.at
On Nov 21, 2013, at 10:30 AM, nicolasc wrote:
> Thanks Josh! This is a lot clearer now.
>
> I understand that librbd is low-level, but still, a warning wouldn't hurt,
> would it? Just check if the size parameter is larger than the cluster
> capacity, no?
maybe I want
Thanks Josh! This is a lot clearer now.
I understand that librbd is low-level, but still, a warning wouldn't
hurt, would it? Just check if the size parameter is larger than the
cluster capacity, no?
Thank you for pointing out the trick of simply deleting the rbd_header,
I will try that now.
On 11/20/2013 06:53 AM, nicolasc wrote:
Thank you Bernhard and Wogri. My old kernel version also explains the
format issue. Once again, sorry to have mixed that in the problem.
Back to my original inquiries, I hope someone can help me understand why:
* it is possible to create an RBD image large
Thank you Bernhard and Wogri. My old kernel version also explains the
format issue. Once again, sorry to have mixed that in the problem.
Back to my original inquiries, I hope someone can help me understand why:
* it is possible to create an RBD image larger than the total capacity
of the cluste
That might be,
manpage of
ceph version 0.72.1
tells me it isn't though.
anyhow still running kernel 3.8.xx
Bernhard
Am 19.11.2013 20:10:04, schrieb Wolfgang Hennerbichler:
> On Nov 19, 2013, at 3:47 PM, Bernhard Glomm <> bernhard.gl...@ecologic.eu> >
> wrote:
>
> > Hi Nicolas
> > just fyi
> >
>-Original Message-
>From: Gruher, Joseph R
>Sent: Tuesday, November 19, 2013 12:24 PM
>To: 'Wolfgang Hennerbichler'; Bernhard Glomm
>Cc: ceph-users@lists.ceph.com
>Subject: RE: [ceph-users] Size of RBD images
>
>So is there any size limit on RBD ima
So is there any size limit on RBD images? I had a failure this morning
mounting 1TB RBD. Deleting now (why does it take so long to delete if it was
never even mapped, much less written to?) and will retry with smaller images.
See output below. This is 0.72 on Ubuntu 13.04 with 3.12 kernel.
On 11/19/13, 2:10 PM, "Wolfgang Hennerbichler" wrote:
>
>On Nov 19, 2013, at 3:47 PM, Bernhard Glomm
>wrote:
>
>> Hi Nicolas
>> just fyi
>> rbd format 2 is not supported yet by the linux kernel (module)
>
>I believe this is wrong. I think linux supports rbd format 2 images since
>3.10.
One mor
On Nov 19, 2013, at 3:47 PM, Bernhard Glomm wrote:
> Hi Nicolas
> just fyi
> rbd format 2 is not supported yet by the linux kernel (module)
I believe this is wrong. I think linux supports rbd format 2 images since 3.10.
wogri
___
ceph-users mailing
Hi Nicolas
just fyi
rbd format 2 is not supported yet by the linux kernel (module)
it only can be used as a target for virtual machines using librbd
see: man rbd --> --image-format
shrinking time: same happend to me,
rbd (v1) device
took about a week to shrink from 1PB to 10TB
the good news: I h
EDIT: sorry about the "No such file" error
Now, it seems this is a separate issue: the system I was using was
apparently unable to map devices to images in format 2. I will be
investigating that further before mentioning it again.
I would still appreciate answers about the 1PB image and the t
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