Re: [Xen-users] iscsi vs nfs for xen VMs

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

Marcin Kuk wrote:

>  > So SAN = iSCSI isn't quite it.
>
> Never ending story...
> This is only terminology - you can talk about it all the time, but the
> question is... who cares? ;) Any of you will win - all this is named
> by people, and tomorow all can have different meanings.
Indeed, but the main thing people overlook is that they are different 
things - as in the analogous statement that "car != Ford".
So for anyone who hasn't realised it yet :

SAN = Storage Area Network, rally just a name for any technique that 
makes your storage 'remote' (as in not 'built in') from the 
server/device that's using it. It really does not require any 
specific technology though some things are assumed (such as the 
ability to connect more than one device to the storage and share the 
capacity).
iSCSI = one specific technology for achieving that.

Analogy :
Car - wheeled and powered machine for moving people and goods about.
Ford - just one of many brands you can buy.

--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.

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