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- Message-ID: <3172C111.4E91@hickory.net>
- Date: Mon, 15 Apr 1996 14:35:13 -0700
- From: Howard Wulf <whitewulf@hickory.net>
- Organization: WhiteWulf
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- Newsgroups: comp.periphs.scsi,comp.sys.sun.hardware,comp.sys.sgi.hardware,comp.sys.next.hardware,comp.sys.mac.hardware,comp.sys.ibm.ps2.hardware,comp.sys.ibm.pc.hardware.storage,comp.sys.ibm.pc.hardware.misc,comp.sys.ibm.pc.hardware,comp.sys.hp.hardware,comp.sys.amiga.hardware,comp.os.linux.hardware,biz.comp.hardware
- Subject: Re: HELP: Testing a Quantum SCSI harddisk.
- References: <50077815@wbmt41.wbmt.tudelft.nl>
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- Path: news.shelby.net!
-
- Marcel Offermans wrote:
- >
- > I have a somewhat strange request. I'm looking for people with experience
- > on testing harddisks. Let me describe the problem.
- >
- > I recently bought two identical Quantum SCSI harddisks from a shop here in
- > the Netherlands. When I came home, one of them worked, whereas the other
- > didn't (in the exactly same configuration, with three other devices on the
- > SCSI bus). So I returned this drive to the shop. They sent it back to the
- > distributor.
- >
- > This distributor tested the drive with Norton's Disk Doctor on an MS-DOS
- > machine. They did a surface test and printed the physical and logical disk
- > information. This test didn't return a failure.
- >
- > In my system, the SCSI bus locked (the SCSI led of the bus itself stayed
- > on) when I had the drive connected to it. That meant that sometimes the
- > system didn't boot at all. Sometimes it did boot, but then the SCSI bus
- > locked when trying to write to the drive. I want to emphasize again that
- > the other identical drive I bought did work (and that I double checked all
- > jumpers half a dozen times to make sure they were set correctly). In the
- > mean time, I have bought a third identical drive (at a different shop) and
- > this one works without problems too.
- >
- > The problem is that the shop now claims that the drive works. They want to
- > charge me for the test.
- >
- > My question: Is the Norton diskdoctor test thorough? I mean, can a drive be
- > defective (looking at the SCSI specs) without this defect showing up in the
- > test?
- >
- > I welcome every response on this subject. Please respond as soon as
- > possible, since I really need the answers before Saturday, April 5th.
- > Please reply in e-mail (to: M.F.Offermans@WbMT.TUDelft.NL) and don't follow
- > up, because the message is crossposted. Thanks very much in advance.
- >
- > --
- > Marcel Offermans
- > e-mail: M.F.Offermans@WbMT.TUDelft.NL
-
- Sounds like bad electronics (hardware) on the bad Quantum drive.
- Do NOT let them bully you. It should still be under warranty,
- and Quantum should replace it. You may end up with an extra drive
- (since you bought a replacement elsewhere), but a good working drive is
- better than a bad non-working drive. Norton disk doctor, and surface
- defect test software in general, do NOT test the hardware (electronics).
- Make them hook it up LIKE YOU DID (with a couple of other SCSI drives),
- and they will probably see your point (the interface chips are bad, and
- they only show up as bad when put under a load of several other SCSI
- devices. Your friendly-hometown-dealer probably does NOT know anything
- about electronics, he just sells them.
- Hope this helps :)
-