XBR2D96D@DDATHD21.BITNET (Knobi der Rechnerschrat) (10/25/89)
Hallo, we plan to put an additional disk to our 70GT. We have currently a 380 MB ESDI disk used for system and user data. We want to add one of the available 760 MB drives. For price reasons we can't buy the "official" SGI product. Our plan is to get cage and cabling from SGI and the drive from a third party. Now I have got some questions on this topic: 1) Should we add the 760MB disk as a second EDSI disk, or should we add it on the SCSI bus build into the 4D? The disk will be used for user data for both the local processor and our NFS based network. 2) Available disk in the size we are thinking of are the CDC/Imprimis WREN-V700, WREN-VI770 and the Fujuitsu M2263 (and probably others). Has anybody (SGI specialist are highly welcome !!!) experience with this drives (ESDI and SCSI version) that he want to share with me? Does the 3.2 fx support any of this drives? How good is fx on "unknown" disk types? I would really like to hear any comments about our plan, EXCLUDED those stating that only SGI products are warranted to run on SGI processors. I have heard them before, I can see their point, but I cant afford to pay more than 100% more for (probably) the same product (here the original SGI cage is already counted). Many thanks in advance, Regards Martin Knoblauch TH-Darmstadt Physical Chemistry 1 Petersenstrasse 20 D-6100 Darmstadt, FRG BITNET: <XBR2D96D@DDATHD21>
markb@denali.sgi.com (Mark Bradley) (10/26/89)
In article <8910250440.aa07989@SMOKE.BRL.MIL>, XBR2D96D@DDATHD21.BITNET (Knobi der Rechnerschrat) writes: > Hallo, > > 1) Should we add the 760MB disk as a second EDSI disk, or should we add it on > the SCSI bus build into the 4D? The disk will be used for user data for > both the local processor and our NFS based network. The ESDI version will perform better than our SCSI on your current machine. (We're making SCSI faster, but it's not there yet on Professional and Power Series machines. New Personal Iris' have pretty fast SCSI hardware today.) > > 2) Available disk in the size we are thinking of are the CDC/Imprimis > WREN-V700, WREN-VI770 and the Fujuitsu M2263 (and probably others). > Has anybody (SGI specialist are highly welcome !!!) experience with this > drives (ESDI and SCSI version) that he want to share with me? Does the 3.2 > fx support any of this drives? How good is fx on "unknown" disk types? > > I would really like to hear any comments about our plan, EXCLUDED those > stating that only SGI products are warranted to run on SGI processors. I have > heard them before, I can see their point, but I cant afford to pay more than > 100% more for (probably) the same product (here the original SGI cage is > already counted). > OK, OK, no warnings this time. 3.2 knows about the 2263, the Imprimis and others. Personally, I think you would be best getting the Hitachi 780 for performance reasons. I have actually not used the 'other' feature in fx. I either create the correct entry (Having source is nice that way.) or modify one that has similar parameters simply because it is easier. But you really should buy it from us..... :{) markb -- Mark Bradley "Faster, faster, until the thrill of I/O Subsystems speed overcomes the fear of death." Silicon Graphics Computer Systems Mountain View, CA 94039-7311 ---Hunter S. Thompson ******************************************************************************** * Disclaimer: Anything I say is my opinion. If someone else wants to use it, * * it will cost... * ********************************************************************************
blbates@AERO4.LARC.NASA.GOV ("Brent L. Bates AAD/TAB MS294 x42854") (10/26/89)
We wouldn't have to buy 3rd party if SGI charge REASONABLE prices for options like disks and memory, instead of the 100% to 300% over fair market value! -- Brent L. Bates NASA-Langley Research Center M.S. 294 Hampton, Virginia 23665-5225 (804) 864-2854 E-mail: blbates@aero4.larc.nasa.gov or blbates@aero2.larc.nasa.gov