Open Stack

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. 
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>Cheers
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>--
>Cédric Lemarchand
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>Le 2 févr. 2014 à 10:37, pragya jain <prag_2648 at yahoo.co.in> a écrit :
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>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?
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>>Thanks 
>>Pragya Jain
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>>On Sunday, 2 February 2014 11:55 AM, Aryeh Friedman <aryeh.friedman at gmail.com> wrote:
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>>You mean you need to access cinder or are you wondering what component handles storage (cinder then is the answer)
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>>>On Sun, Feb 2, 2014 at 1:02 AM, pragya jain <prag_2648 at yahoo.co.in> wrote:
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>>>hi all
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>>>>my query is:
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>>>>Is openstack swift virtualize the storage to store the data?
>>>>And how does openstack swift implement it?
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>>>>
>>>>Pragya Jain
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>>>
>>>
>>>-- 
>>>
>>>Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org
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>>>
>>>
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