Open Stack

Swift isn¹t the easiest project to understand.  You will probably find the
docs around it helpful.  Based on your questions so far I think starting
here would be most useful:
http://docs.openstack.org/developer/swift/overview_architecture.html

Andrew Kerr

Subject:  Re: [Openstack] storage virtualization


thanks for reply Cedric

what does swift do for adding more devices as storage node?
how does swift abstract storage from the devices?
And how swift recognise whether there is free space on a particular
storage node to store data?


On Sunday, 2 February 2014 4:23 PM, Cédric Lemarchand
<c.lemarchand at yipikai.org> wrote:


As of my comprehension and the way you ask, swift didn't "virtualize" the
storage, there are no layer between the swift stack and final storage. The
back end are simple FS (ext4 or xfs, or else) on which data are stored
(replicated x times/check summed
 ect ...). Of course the objects are not stored "as is", like on a simple
file server. 

Cheers

--
Cédric Lemarchand


Le 2 févr. 2014 à 10:37, pragya jain <prag_2648 at yahoo.co.in> a écrit :



I am not talking about cinder.
My question is:
Openstack swift provides storage as a service to the user so that user can
store their data offline.
when a user store some data on swift using Object PUT command, data is
stored as an object at some storage node.
1. What is this storage node - Is it a physical hard disk?
2. to store the data, Is swift virtualize the physical storage or directly
store the data on physical disk?
3. Is there any need of storage virtualization in swift?

Thanks 
Pragya Jain


On Sunday, 2 February 2014 11:55 AM, Aryeh Friedman
<aryeh.friedman at gmail.com> wrote:


You mean you need to access cinder or are you wondering what component
handles storage (cinder then is the answer)



On Sun, Feb 2, 2014 at 1:02 AM, pragya jain
<prag_2648 at yahoo.co.in> wrote:

hi all

my query is:

Is openstack swift virtualize the storage to store the data?
And how does openstack swift implement it?

Pragya Jain




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