In what sense does it start thrasing? I'm thinking about building a poweredge with 8 cpus and 16GB of mem to handle 3x 9TB luns. Does that sound sane?
On Oct 5, 2007, at 1:02 PM, Daniel Leaberry wrote: > > Aaron Knister wrote: >> I'm planning to hang 58 terabytes off of a PowerEdge 1950 with 4 >> CPUS and 8 gigs of memory. My MDS is a dual core Opteron with a >> 250gig raid1 metadata volume and 2GB of ram. Do you think this >> hardware configuration is sane? >> >> -Aaron >> > Depends how much you push your disks. Your waiting on io will shoot > up real quick if the disks slow down even a bit. My experience is > you'll probably want more machines unless you're not pushing your > disks (in which case why run lustre?) > > We have about 85TB of disk (in 24 luns) hanging off 4 PE2950's with > those same specs. They are set up in failover pairs (each handles 6 > luns) but I can't run too long on a single machine before it starts > thrashing when it takes over the other nodes 6 luns. > > Daniel > >> _______________________________________________ >> Lustre-discuss mailing list >> [email protected] >> https://mail.clusterfs.com/mailman/listinfo/lustre-discuss >> _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
