On Wed, Nov 5, 2008 at 7:10 PM, yejun <[EMAIL PROTECTED]> wrote: > > > > 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.
Agreed. I was mentioning it more as the concept rather than an actual implementation. > 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. > > > > > > > > > > -- Barry - www.nearby.org.uk - www.geograph.org.uk - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
