We're trying to architect a Lustre setup for our group, and want to leverage our available resources. In doing so, we've come to consider multi-purposing several hosts, so that they'll function simultaneously as MDS & OSS.
Background: Our OSTs are a NexSan SATAboy (10T), a NexSan SATAbeast (30T), a FalconStor NSS650 (32T), and a FalconStor NSS620 (32T) -- all have multiple iSCSI interfaces. Primary MDS would be a 72-cpu IBM x3950m2, which would also be an OSS. Secondary MDS would be a 2-cpu Penguin Computing Altus-1300, which would also be an OSS. A 2-cpu Dell PowerEdge 1425 would be our third OSS. The IBM x3950m2 also functions as a heavily-used compute cluster (70 dedicated cpus, which could/would be reduced by the number of cpus to be dedicated to MDS and OSS needs). We have most of the infrastructure already in-place for Infiniband networking. Are there basic conflicts-of-interest, and/or known/potential "gotchas" in utilizing hosts in such multi-purpose roles? -- JONATHAN B. HOREN Systems Administrator UAF Life Science Informatics Center for Research Services (907) 474-2742 [email protected] http://biotech.inbre.alaska.edu
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