Glance (and friends - Cinder etc) work with the RBD layer, so yeah the
big 'devices' visible to Openstack are made up of many (usually 4MB)
Rados objects.
Cheers
Mark
On 25/09/15 12:13, Cory Hawkless wrote:
>
> Upon bolting openstack Glance onto Ceph I can see hundreds of smaller objects
> are
m>]
> Sent: Thursday, 24 September 2015 6:04 PM
> To: Cory Hawkless mailto:c...@hawkless.id.au>>
> Cc: ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>
> Subject: Re: [ceph-users] Basic object storage question
>
> On Thu, Sep 24, 2015 at 1:51 AM, Cory Hawk
rrect. The rados cli program is more of an access and admin tool than
anything intended for regular use.
-Greg
>
> -Original Message-
> From: John Spray [mailto:jsp...@redhat.com]
> Sent: Thursday, 24 September 2015 6:04 PM
> To: Cory Hawkless
> Cc: ceph-users@lists.ceph.com
eptember 2015 6:04 PM
To: Cory Hawkless
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] Basic object storage question
On Thu, Sep 24, 2015 at 1:51 AM, Cory Hawkless wrote:
> Hi all,
>
>
>
> I have basic question around how Ceph stores individual objects.
>
> Say I have a po
On Thu, Sep 24, 2015 at 2:06 AM, Ilya Dryomov wrote:
> On Thu, Sep 24, 2015 at 7:05 AM, Robert LeBlanc wrote:
>> -BEGIN PGP SIGNED MESSAGE-
>> Hash: SHA256
>>
>> If you use RADOS gateway, RBD or CephFS, then you don't need to worry
>> about striping. If you write your own application that
On Thu, Sep 24, 2015 at 12:33 PM, Wido den Hollander wrote:
>
>
> On 24-09-15 11:06, Ilya Dryomov wrote:
>> On Thu, Sep 24, 2015 at 7:05 AM, Robert LeBlanc wrote:
>>> -BEGIN PGP SIGNED MESSAGE-
>>> Hash: SHA256
>>>
>>> If you use RADOS gateway, RBD or CephFS, then you don't need to worry
On 24-09-15 11:06, Ilya Dryomov wrote:
> On Thu, Sep 24, 2015 at 7:05 AM, Robert LeBlanc wrote:
>> -BEGIN PGP SIGNED MESSAGE-
>> Hash: SHA256
>>
>> If you use RADOS gateway, RBD or CephFS, then you don't need to worry
>> about striping. If you write your own application that uses librado
On Thu, Sep 24, 2015 at 7:05 AM, Robert LeBlanc wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> If you use RADOS gateway, RBD or CephFS, then you don't need to worry
> about striping. If you write your own application that uses librados,
> then you have to worry about it. I understa
On Thu, Sep 24, 2015 at 1:51 AM, Cory Hawkless wrote:
> Hi all,
>
>
>
> I have basic question around how Ceph stores individual objects.
>
> Say I have a pool with a replica size of 3 and I upload a 1GB file to this
> pool. It appears as if this 1GB file gets placed into 3PG’s on 3 OSD’s ,
> simpl
ty of the application writing to Ceph, not of the RADOS
> engine itself?
>
>
>
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Cory Hawkless
> Sent: Thursday, 24 September 2015 10:22 AM
> To: ceph-users@lists.ceph.com
> Subject: [ceph-users] Basi
the RADOS engine
itself?
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Cory
Hawkless
Sent: Thursday, 24 September 2015 10:22 AM
To: ceph-users@lists.ceph.com
Subject: [ceph-users] Basic object storage question
Hi all,
I have basic question around how Ceph stores individu
Hi all,
I have basic question around how Ceph stores individual objects.
Say I have a pool with a replica size of 3 and I upload a 1GB file to this
pool. It appears as if this 1GB file gets placed into 3PG's on 3 OSD's , simple
enough?
Are individual objects never split up? What if I want to st
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