Date: Wed, 20 Sep 2000 20:47:51 -0400 From: Sergey Babkin <babkin@bellatlantic.net> To: "Aleksandr A.Babaylov" <babolo@links.ru> Cc: David Scheidt <dscheidt@enteract.com>, ee@uncanny.net, freebsd-hackers@FreeBSD.ORG, freebsd-isp@FreeBSD.ORG Subject: Re: Frustration with SCSI system Message-ID: <39C95AB7.D9DD318C@bellatlantic.net> References: <200009202250.CAA01922@aaz.links.ru>
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"Aleksandr A.Babaylov" wrote: > > David Scheidt writes: > > On Thu, 21 Sep 2000, Aleksandr A.Babaylov wrote: > > :I work since 1991 with computer hardware and know exact > > :that SCSI drives is about ten times less reliability than > > :IDE. Yes, I understand that SCSI was more ... extremal may be. > > :I am wery glad that now mostly no need in SCSI drives at all. > > :Just use good IDE drives, may be second root and regular > > :dumps to, for example DDS-4 strimer. It is cost effective. > > This is totatlly contrary to my experience. Heck, I've got a fair > > number of SCSI disks that predate 1991, happily spinning away. > > SCSI just works, on everything I've ever used it. I've had a > > occaisonal problems with things like termination. High quality > > cables and enclosures solve this. I wouldn't let an IDE disk get within > > thinking distance of machine whose reliability I cared about. > Cabling... most of troubles caused by cables for me - it is > reason I do not believe external devices. Eh, that's something unusual. Unless you buy cheap bad cables or try to solder them by yourself. > Most of IDE breaks was long ago - last about 3 or 4 years ago. > SCSI drives breaks are quite regular - 1 or 2 in at least 5 > last years. > this is for about 50 SCSI drives near me and about 3 times more > IDE drives. > This is my expierency - you have another. Overheating. Newer SCSI disks can be found only in high-performance versions, so they tend to generate more heat and be more sensitive to cooling. Plus if your SCSI disks are used more intensely (and they probably are) this would affect their longevity. Plus different manufacturers have different reliability - if you use Seagate SCSI disks and someone else's IDE then you most certainly will see a lot more SCSI disk failures. -SB, Seagate Hater To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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