Hi, On Tue, 12 Oct 2010, Adam Nielsen wrote:
>> With all drives, the "used surface" starts at the outer corner and does >> not reach to the inner corner. So 3.5" drives have in any case the bits >> sliding faster under the heads at a given rpm. > > Unless they're 10kRPM or faster. No, at any given speed. > Not sure if it's still the case, but these drives used to have smaller > platters to reduce the seek time, so they were pretty much 2.5" drives > in a 3.5" shell. Impossible. > I believe the WD Raptor was (is?) almost a 2.5" drive > with a heatsink large enough to bring it up to 3.5" [1] - this is going > back a few years now though, I don't know if it is still true. > > So given equal RPM the 2.5" drive should have a faster full-stroke seek, > but as has been pointed out, an SSD would be even better in this respect. How do you see an effort of 2.5" against 3.5"? The opposite is fact. > [1] > http://www.latestpcnews.com/western-digital-launches-new-backplane-compatible-wdvelociraptor-hard-drive/ Only advertising, sorry. Viele Gruesse Eberhard Moenkeberg (emoe...@gwdg.de, e...@kki.org) -- Eberhard Moenkeberg Arbeitsgruppe IT-Infrastruktur E-Mail: emoe...@gwdg.de Tel.: +49 (0)551 201-1551 ------------------------------------------------------------------------- Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH Goettingen (GWDG) Am Fassberg 11, 37077 Goettingen URL: http://www.gwdg.de E-Mail: g...@gwdg.de Tel.: +49 (0)551 201-1510 Fax: +49 (0)551 201-2150 Geschaeftsfuehrer: Prof. Dr. Oswald Haan und Dr. Paul Suren Aufsichtsratsvorsitzender: Dipl.-Kfm. Markus Hoppe Sitz der Gesellschaft: Goettingen Registergericht: Goettingen Handelsregister-Nr. B 598 ------------------------------------------------------------------------- _______________________________________________ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
