I am interested in this too, from the docs really it looks like the prioritization is mostly handled by queuing on the CPU. Is the overhead associated with managing the priorities worth paying if you have some volumes with very latency sensitive IO?
*Jeremy Page*|Senior Technical Architect|*Gilbarco Veeder-Root, A Danaher Company* *Office:*336-547-5399|*Cell:*336-601-7274|*24x7 Emergency:*336-430-8151
On 02/08/2012 07:20 AM, Jack Lyons wrote:
Has anyone used FlexShare and had extremely positive results. IT seems that the improvement would be minor and misconfiguration could lead to no improvement for intended volumes and degradation for others. From reading, it seems that you need to assign priorities to each volume otherwise the volumes in the default queue will experience degradation.
Would anyone like to share details of how the implemented flexshare and the impact it had on the performance issue they were working to resolve?
Would also like to know if anyone has try to 'schedule flexshare' settings using rsh or api e.g. we want to give higher priorities to certain volumes from 6pm to 11pm nightly.
Thanks Jack _______________________________________________ Toasters mailing list Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters
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