[sam-qfs-discuss] sparc MDS / x86 MDS

[Tom Albers]

Stuart,

For the benefit of others, we are talking about this bullet
from the WWWW (W4) guide:

24. Mixed architecture (SPARC with x64) multi-reader configurations
are not supported.

This is currently not on the road map.  We would need to make
QFS endian neutral since all readers access the metadata directly.
For shared QFS, we handle mixed architectures via byte-swap of the
metadata when it goes over the wire.

Regards,
Tom


Stuart Anderson wrote:
> Tom,
> 
> It would be great if you could also add support for mixed architecture
> support of reader/writer QFS configurations as well. We have some systems
> where the increased security from having no TCP/IP, the increased availability
> from removing the MDS server(s), and the model of one writer with multiple
> readers is a very good match. However, we would like to start mixing in
> x86 systems into an existing sparc environment.
> 
> Thanks.
> 
> 
> On Fri, Jan 18, 2008 at 11:06:27AM -0600, Tom Albers wrote:
> 
>>Hi Lisa,
>>
>>The answer is 'yes' - assume by 2 MDS's you mean the following:
>>
>>SPARC MDS existing filesystem with x4600 client
>>x4600 MDS new filesystem with SPARC client
>>
> 
>