Date: Fri, 28 Sep 2001 15:44:01 -0700 From: "Kory Hamzeh" <kory@avatar.com> To: "Mike Meyer" <mwm@mired.org> Cc: <questions@freebsd.org> Subject: RE: reliable HDD brand (LONG) Message-ID: <004201c1486f$11a9e080$14ce21c7@avatar.com> In-Reply-To: <15284.64387.828590.764360@guru.mired.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Mike, relax -- I was asking a question. SCSI disks are 2 to 3 times the price of IDE drive and everyone keeps saying "that's because they are more reliable" but I'm asking WHY are they more reliable? And your saying "because the firmware sucks". Kory > -----Original Message----- > From: owner-freebsd-questions@FreeBSD.ORG > [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Mike Meyer > Sent: Friday, September 28, 2001 3:37 PM > To: Kory Hamzeh > Cc: questions@freebsd.org > Subject: RE: reliable HDD brand (LONG) > Importance: High > > > [Format recovered from top posting.] > > Kory Hamzeh <kory@avatar.com> types: > > > In general, if you want reliability, go SCSI, mirroring IDE > or, RAID5 IDE > > > and have a hot spare. If you want enterprise reliability (which > > > you probably > > > don't if you were considering IDE drives) get a solid state > > > drive. They are > > > usually above USD$25,000. Ouch. (These things are also blazing > > > fast as far > > > as access time--great for that "special" 5% of files on a big > file server) > > Why is SCSI more reliable than, say IDE, when SCSI dictates the host > > interface? Is the actual data encoding on the platter any more > reliable? Is > > the drive spindle motor or head servo any more reliable? I use > to run SCSI > > exclusively, but I had so much trouble, specially when the > Ultra-Wide stuff > > came out that I switched to IDE. Other then one problem with > the IBM 75GXP > > 45G, IDE was been more reliable for me than SCSI. > > How about because the firmware on cheap IDE drives sucks? For > instance, some IDE drives with write cache enabled (basically, that > means all of them) can potentially leave data in the cache > forever. Others don't implement the ATA "flush your cache" command. > > > I agree they are not as fast as IDE. > > The author you quoted didn't discuss the speed of IDE vs. SCSI, so > it's not clear what you are agreeing with. As stated, you've either > misspoken or are comparing apples and oranges. > > <mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?004201c1486f$11a9e080$14ce21c7>