On Mon, 2007-05-07 at 05:24 -0500, Ron Johnson wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 05/07/07 04:53, Francesco Pietra wrote: > > Is it conceivable to add a low-quality 300GB HD (for > > swap file) to a raid1 system? > > > > The system consists of > > > > ---Tyan S2895 Thunder K8WE mother board > > ---Two WD Raptor 150GB each > > ---Two Dual Opteron > > ---16 GB ram > > > > In computations, I can presently offer 96GB as swap > > (my home), though it is not enough. Actually I started > > my system with two Maxtor HD 300GB each, though, on > > long runs, they proved incompatible with the mother > > board and had to be replaced. > > > > Thanks for advice > > 96 GIGABYTES of swap space???????????????????????????? > > If that's not enough, you need a very large, expensive SPARC or > Superdome system. I've part-time admin'd (contracted) a couple of systems that required 128GB of swap during batch processing "middle of the night" setups. Primarily because of the inner looping of some of the jobs and the amount of "stored" info hanging in memory. Rather than fix the batch processing system, which came from an AS400 (which originally was on an IBM 36 system), the company suggested swap as a workaround. This is a medical billing system that has been around since... the 70's and has only been extended and never "refactored" or optimized. The reason being, they are afraid that the system will break. Being written in COBOL and some kind of JPL. Lets just say that the whole batching thing could easily be done dynamically, but would require a huge amount of work to re-factor and optimize the code for machines being produced now-a-day. But the fact that this package cost upward of $500K for maintenance per year per machine running it, says a lot doesn't it. Its a milker. -- greg, greg@gregfolkert.net PGP key: 1024D/B524687C 2003-08-05 Fingerprint: E1D3 E3D7 5850 957E FED0 2B3A ED66 6971 B524 687C Alternate Fingerprint: 09F9 1102 9D74 E35B D841 56C5 6356 88C0
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