On Nov 5, 1:55 pm, "Barry Hunter" <[EMAIL PROTECTED]> wrote:
> On Wed, Nov 5, 2008 at 6:39 PM, bFlood wrote:
>
> > EBS - from the amazon docs:
> > "A volume can only be attached to one instance at a time, but many
> > volumes can be attached to a single instance. "
> >http://aws.amazon.com/ebs/
>
> Isn't this a inherent limitation of the technology, not a Amazon one?
> Trying to have multiple Operating Systems working on one actual disk
> is ripe for disaster (the volumes are low level block devices). How
> will locking and such work? never heard of connecting one physical
> disk to multiple machines.
>
NFS is not scalable and reliable. There are lots of other options,
such as ISCSI, GFS, Lustre and etc. Some are software, some are
hardware, the problem in the end will just come down to performance,
reliability, scability. There's current no watchdog and hardware
synchronizer implementation on EC2 afasik, most solution will be hard
to be reliable and scalable. Of course amazon can implement better
native solution but I think it will be only done by user's demand.
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