On Tue, 2006-11-21 at 15:34 -0700, Peter Braam wrote: > Oleg pointed out that the striping width of 160 can have negative > impacts - if you have a bandwidth per OST that is too low, you will > limit your number. > > But there is no reason that has to be the case. OST targets could be > RAID0 striped across multiple FC interconnects, giving them a very high > bandwidth. In this way with 160 stripe width 2x the current bandwidth > can be achieved. > > To validate Oleg's claim for reads, namely that they are suboptimal for > random 1MB reads - could the OST survey be run against the OBD filter > device? This only requires one DDN. >
Does OST survey run for catamount clients? I'd need some pointers to get going on trying that. We ran obdecho once, but I haven't personally got obdfilter device going on xt3 as of yet. Thanks, Ruth > - Peter - > > _______________________________________________ > Lustre-devel mailing list > [email protected] > https://mail.clusterfs.com/mailman/listinfo/lustre-devel > > _______________________________________________ Lustre-devel mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-devel
