Sebastion, you are correct on the OST Memory, you probably wont need the 16GB, and if you can save money on using only 4GB, and buy bigger/more drives, you will probably be better off.
Evan On 3/5/09 6:29 PM, "Sebastian Gutierrez" <[email protected]> wrote: > Hello > > I am looking for advice or suggestions on specking the MDS and OSS for a > new file system I am building. > > The IO patterns as have been explained to me are jobs that either create a > big mpeg file or thousands of about 100kb frames for video. > This could grow to hudreds of thousands of 100k files. > > I have specked > 2 MDS for a cluster > 8x300GB SAS 15k drives for the MDT in a raid 10(I used raid 10 to reduce > the chance of the MDT becomming a bottleneck with many small files) > 2x300GB SAS 15k drives for the MGS in a raid 1 > 1xHostpare > 32gb 800mhz ram > 3.0 or 2.5 dual quad core procs > > 4 OSS servers > 16GB 667mhz ram > 2.5 ghz dual quad core procs > 6x1TB SATA 3 7.2k disks 5TB OST in a raid 5 (possibly running software raid) > expandable to 2 5TB OSTs Per OSS > 1xHotspare > > Since this is the first Lustre file system I am building. I noticed the > sizing page: > http://manual.lustre.org/manual/LustreManual16_HTML/SystemLimits.html#50548887 > _46859 > > The document mentions only dual core procs in regards to the MDS. > > The document also mentions a much lower amount of system RAM required for > the OST. > > Am I wasting resources here by over-specking these boxes or is it a good > idea to over spec a bit? > > Am I on the right track based on the IO pattern as I understand it? > > Sebastian > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
