Udo, So you are working without hardware raid controller? Are you using SAS or SATA?
BR Uwe Am 26.12.2010 um 18:10 schrieb Udo Waechter: > Hi, > > On 22.12.2010, at 19:21, Gotwalt, P. wrote: > >> I have 4 nodes with each 4 disks. I want to have the best performance so >> I will make a stripe of these 4 servers. But how can I get the best >> performance out of each server? >> >> 1 - Make a software stripe (with md raid0) over all the internal disks >> and export this as 1 volume, and then >> volume create performance-volume stripe 4 node1:/bigdisk node2:/bigdisk >> node3:/bigdisk node4:/bigdisk >> > Raid0? Seriously? - You know that 0 Data can be rescued if one of those disks > crashes? > > We have 12disk RAID6 Storage servers with software RAID. 3 Gbit ports and > performance is great. > > Adding each single disk via gluster is mainly a lot of typing work. Thus we > decided to do the Software raid layer and use its management capabilities, > then add glusterfs atop of that. > > I guess it depends on you workloads. Depending on the network links between > you storage nodes and you client nodes, you might not need to tune a lot for > speed. (If you have one single Gbit link and your lan is Gbit then Gbit is > your bottleneck and not the raid-pattern.... > Here again raid0 would give you no performance gain at all. > > --udo. > > -- > :: udo waechter - [email protected] :: N 52º16'30.5" E 8º3'10.1" > :: genuine input for your ears: http://auriculabovinari.de > :: your eyes: http://ezag.zoide.net > :: your brain: http://zoide.net > > > > > _______________________________________________ > Gluster-users mailing list > [email protected] > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users _______________________________________________ Gluster-users mailing list [email protected] http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
