Date: Sat, 8 Nov 1997 00:16:15 +0100 From: j@uriah.heep.sax.de (J Wunsch) To: chat@FreeBSD.ORG Subject: Re: hardware Message-ID: <19971108001615.TR41338@uriah.heep.sax.de> In-Reply-To: <199711070513.AAA00623@dyson.iquest.net>; from John S. Dyson on Nov 7, 1997 00:13:05 -0500 References: <199711070451.VAA24465@obie.softweyr.ml.org> <199711070513.AAA00623@dyson.iquest.net>
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As John S. Dyson wrote: > (For SCSI advocates -- I don't mean to imply that IDE is better than > SCSI, only that it is getting surprisingly good, for such a low-end > technology.) I don't think it's much lower-ended than SCSI. The drive electronics' complexity is probably the same. The access interface (``register file'') is just crap. It is marketed in numbers an order of magnitude larger than SCSI, that's the only thing that makes it cheaper. If marketers would have been willing, SCSI could have been marketed the same. Marketers never look at technical arguments. (ISA ``PnP'' vs. PCI, IDE vs. SCSI, VHS vs. Beta, ...) I've got too many surprises with too many different IDE drives to ever touch it again. I'm used to hot-plug SCSI devices all over the place (first plug them onto the bus, then set the power plug), and i enjoy the feature to only set a single jumper on the new device before i plug it in. /sbin/dmesg usually tells me what ID is still available. :) Now, you could argue that i'm risking something when doing it this way, but i have been working this way for years, and i don't see why i should start to shutdown and reboot my machines to just change the peripheral device configuration. ;-) I would even hot-plug control- lers in scratch machines, but i know that not even the PCI bus has ever been designed to do _this_, so i bite the bullet and power-off before swapping them. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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