start:storage
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STORAGE
SAN
Several categories:
- FC: Block storage, FC. Dedicated switches.
- FCoE: FC signalling over Ethernet protocol.
- iSCSI: Still block storage but cheaper version. Encapsulated on Ethernet frames
NAS: File server. File oriented. Less efficient
SDS (Software defined storage) This is aiming see all the individual storage in the nodes (e.g.: local disks on blade servers) as a unique aggregated pool of storage. From the virtualization perspective, the VSA (virtual storage appliance ) captures any request for the storage from the guests and redirects to the 'pool of storage'
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