openstack team mailing list archive

[Caitlin Bestler <Caitlin.Bestler@xxxxxxxxxxx>]

John Dickinson wrote:

> The storage volumes referenced in the ring are identified by an IP, port, and mount point. So, it is possible to use
> network attached storage for swift (as long as it still supports xattrs). However, I don't know if this has ever really
> been tried (especially in production), and I'd be surprised if you get any benefits doing this (rather than using local
> hard drives).

Also, the Swift code assumes that local storage is indeed local. At the minimum I believe it is safe to state that none
of this code has been tested under a scenario where somebody else is changing the files behind its back.

Also Swift assumes that if it creates three replicas that those are at least three replicas, not three references to shared
NAS storage.