[Swift-devel] Planning next set of Swift features and releases

[Kate Keahey]

Ian Foster wrote:
> The GPFS issue was quite fundamental at the time--IBM would not 
> guarantee that a VM node running GPFS would not corrupt GPFS. They got 
> past the issue eventually, I don't know how.

IBM released GPFS including Xen support a while ago.

> 
> Anyway, we should keep pushing people on this. In the meantime, EC2 and 
> Nimbus are good targets.
> 
> 
> On Apr 24, 2009, at 5:56 PM, Mihael Hategan wrote:
> 
>> On Fri, 2009-04-24 at 17:08 -0500, Ian Foster wrote:
>>> It has been a persistent problem getting TG and OSG to consider VMs.
>>> The reasons are mixed: in my view, some good, some bad. The good
>>> reasons include the difficulties inherent in getting Xen/VMware
>>> support for the sometimes odd software found on high-end systems.
>>> E.g., on TG-UC, both 64-bit hardware and GPFS have been sources of
>>> problems.
>>
>> We (swift) can probably plan around GPFS, and possibly other such
>> "difficulties".
>>
>>> The bad reason is a persistent conservatism.
>>
>> Is there any way that the problem can be formulated in such a way as to
>> satisfy both worlds? In my naive view, a node could be used both in a
>> traditional way, and as a VM host when needed.
>>
>>
> 
> 
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-- 

Kate Keahey,
Mathematics & CS Division, Argonne National Laboratory
Computation Institute, University of Chicago