[occi-wg] Is OCCI the HTTP of Cloud Computing?
Richard Davies
richard.davies at elastichosts.com
Wed May 6 09:18:30 CDT 2009
> > However there's an important one missing - the specification of _how_
> > the other object is bound to the virtual machine (e.g. is the drive
> > bound as IDE or SCSI, and to which bus? Which network is which virtual
> > NIC?).
...
> > This extra field will be needed in the XML too, e.g. as 'type':
> >
> > <link type="ide:0:0" rel="[22]http://purl.org/occi/storage#device"
> > href="urn:uuid:4cc8cf62-69a4-4650-9e8c-7d4c516884df" title="Hard
> > Drive"/>
...
> start to impose on the format of device identifiers which doesn't
> necessarily work in large, complex and/or heterogeneous environments (you
> say eth0, I say en1 and others say "Local Area Connection"... and that's
> before you start talking about paravirtualised block devices and so on)
Yes, there is an choice of whether to choose an abstract set of device
identifiers (e.g. nic:0) or to allow many platform-specific variants (eth0,
en0, etc.).
We can't just omit the identifiers though - it is an important part of the
specification of a VM to know _how_ storage, networks, etc. connect, as well
as just the fact that they do.
Cheers,
Richard.
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