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Re: HardDisk problems
On Mon, 7 Feb 2000, Alon Barzilai wrote:
:
:WD disks from the "3" series are known trouble makers.
:the die too soon, and cause errors.
:the newer 4 series do not have those problems.
:you can look at the drive model its the series number followed by
:the drive size ( i.e. 36400 is a 6.4 GB drive from series 3).
:as I remember, most of the 4-8 GB drives are from 3 series.
:
:Alon.
Information Technology stands for information first, technology later.
WD had problems with firmware. Those caused improper calculations of head
positions, therefore heads got broken. Problems got fixed somewhere at
1998. Those flaked disks were mostly from Caviar series, and,
coincidentally, most Caviars had 3 platters.
WD provides utility (not unix) called WDOVRLY1.EXE
(http://ftp.wdc.com/fitness/overlay.html) to prevent damage
(via firmware upgrade)
At WD language, the series is _second_ letter in drive name. In general,
WD name reveals:
AC36400R is:
WD A C 2 635 - 0 0 F
1 2 3 4 5 6 7 8
1 - Western Digital
2 - interface: A - IDE, S - SCSI, C - PCMCIA-IDE
3 - model: C - Caviar, P - Piranha, L - Lite, U - Ultralite
4 - amount of platters
5 - capacity in bytes * 1E6
6 - LED: 0 - no, 1 - red, 2 - green
7 - front panel: 0 - ΞΕΤ, 1 - black, 2 - gray
8 - buffer size: S - 8 kb, M - 32 kb, F - 64 kb, H - 128 kb, R-512 kb
:
:
:Moran Cohen wrote:
:>
:> "Ohad M. Somjen" wrote:
:>
:> > hi,
:> > i had a 4.3G WD drive and it gave me alot of problems so i gave it back
:> > and got a new 4.3G that for some time worked perfectly.
:> > but now i get before any try to read from the disk:
:>
:> well, I had this trouble with two5.1GB WDs...
:> I guess these disks can't handle uptimes of Linux systems... ;-)
:>
:> > Feb6 13:33:14 somjen kernel: hdc: write_intr: status=0x61 { DriveReady DeviceFault Error }
:> > Feb6 13:33:14 somjen kernel: hdc: write_intr: error=0x04 { DriveStatusError }
:> > Feb6 13:33:14 somjen kernel: ide1: reset: success
:> > Feb6 13:33:14 somjen kernel: hdc: write_intr: status=0x61 { DriveReady DeviceFault Error }
:>
:> You should do a /sbin/badblocks and see what it tells you.
:> A couple of things other than badblocks can be:
:> - misconfigured /dev/hdc in BIOS, (what mode are you acessing it?)
:> - screwed up IDE controller ? (try the same disk on another system)
:> - kernel bug ? (what version are you using ?)
:>
:> Also, does fsck give you a bad time ?
:>
:> > the downtimes are max 1 hour.
:>
:> >
:> > i know now that WD makes terrible disks, but what should i do with this one. it was purchased
:> > in excelnet (and it took them 2 months to exchange the last disk).
:>
:> Well, I think we have a good idea of what _NOT_ to do....
:> (aka buy@Excellnet...)
:>
:> Cheers,
:> Moran
:>
:> --
:> "I told you I'd shoot, but you didn't believe me, why didn't you believe me?" -- Sticky
:> Weaselteaks (on Ren&Stimpy)
:>
:> go to http://www.linuxqa.com
:>
Omer Mussaev tel: 051308214 | finger for public key
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