Hi Anand- Thanks for responding to my bioclusters poll! You should be receiving your ThinkGeek gift certificate via email soon. Thanks again! Glen On Jun 22, 2005, at 8:14 PM, Anand S Bisen wrote: > > > Glen Otero wrote: > >> Greetings biocluster intelligentsia! >> I have some new BioBrew (biobrew.org) feature ideas that I'd like >> to scrutinize against the collective intelligence and experience >> of this community. I've written a few information gathering >> questions that, if answered, ought to help me judge the >> feasibility of my ideas. What's in it for those of you who take a >> few minutes to respond? Well, the first 20 folks to email me >> (offline at gotero at linuxprophet.com) with sufficient answers to >> *all* 20 questions will receive a $10 ThinkGeek gift certificate. >> The next 10 people with answers to all the questions will receive >> a $5 ThinkGeek gift certificate. The questions are below with >> example answers in parentheses (sometimes). Be as detailed as you >> like, because more detailed answers will win in the event of a >> tie breaker : ) >> Thanks for your help!!-- Glen >> 1) What is the size of your Linux cluster? (e.g. 128 nodes) >> > 48 nodes > > >> 2) What is the compute node architecture? (e.g. dual 3GHz Xeon, >> dual Opteron) >> > dual 3.2GHz Xeon > > >> 3) Do your compute nodes have local hard drives or are they diskless? >> > Local hard disk > > >> 4) What is the cluster interconnect? (e.g. GigE) >> > GigE > > >> 5) What application(s) primarily run on your cluster (e.g. BLAST, >> HMMER) >> > sequest, tandem, statistical/mathematical ad-hoc scripts > > >> 6) If BLAST is running on your cluster, describe the type of >> BLAST jobs (e.g. blastn- genome vs. genome, blastn-genome >> annotation with ESTs) >> > NA > > >> 7) What type of cluster filesystem is in use on your cluster? >> (e.g. NFS, GFS, proprietary) >> > NFS > > >> 8) If you use NFS, is your NFS server the same as the cluster >> head node or is it a separate server? >> > Seperate > > >> 9) If you use NFS, what type of machine is your NFS server? (e.g. >> dual Xeon Linux Box w/ x number of yGB hard drives) >> > Quad Intel Xeon 3.0 GHz with Dual Path Fiber Connect IBM > TotalStorage FAStT600 Turbo > > > >> 10) What is the ratio of NFS servers to compute nodes in your >> cluster? >> > 8:48 > > >> 11) How do you benchmark the throughput of your NFS server, i.e. >> what application(s) do you use to stress the NFS server and what >> tool(s) do you use to measure throughput? >> > bonnie++ > > >> 12) If you have a NAS/SAN, what type of machine(s) are they? >> (e.g. NetApp w/ x number of yGB hard drives) >> > In all i have around 3TB of storage attached with this cluster > consisting of 36 Fiber Channel Hard Disks > > >> 13) What is the ratio of NAS servers to compute nodes in your >> cluster? >> > 1:48 > > >> 14) What is the throughput of your NAS server(s)/SAN? >> > around 35-39 MB/s > > >> 15) How do you benchmark the throughput of your NAS server/SAN, >> i.e. what application(s) do you use to stress the servers and >> what tool(s) do you use to measure throughput? >> > > >> 16) Are you satisfied overall with your cluster filesystem solution? >> > Yes/No > > >> 17) What are the two biggest problems you have with your cluster >> filesystem solution? >> > Bottleneck is NFS due to excessive amount of file I/O over NFS > > >> 18) With regard to cluster filesystems, what would you do >> differently when building your next cluster? (e.g. increase NFS >> servers/compute node ratio, different filesystem) >> > Try different file systems > > >> 19) What NFS server/compute node or NAS-SAN/compute node ratio >> will you aim for with the next cluster you build or upgrade? >> > Still evaluating > > >> 20) If necessary, do you mind if Glen emails you offline to seek >> clarification on some of your answers? (Answering "Yes" is not >> necessary to be eligible for a gift certificate). >> > Feel free > > > > thanks > > Anand > > > > --- > Anand Singh Bisen > http://www.abisen.com > >> _______________________________________________ >> Bioclusters maillist - Bioclusters at bioinformatics.org >> https://bioinformatics.org/mailman/listinfo/bioclusters >> > _______________________________________________ > Bioclusters maillist - Bioclusters at bioinformatics.org > https://bioinformatics.org/mailman/listinfo/bioclusters > >