Subject: Re: RAID In general (Re: Hot Swappable IDE Kits)
To: Wojciech Puchar <firstname.lastname@example.org>
From: Greywolf <email@example.com>
Date: 04/16/2003 14:34:19
Thus spake Wojciech Puchar ("WP> ") sometime Today...
(me)> ...much about speed and data size omitted...
WP> but not with DAT media or CD-RW
You obviously missed the speed/size thing.
* DDS-4 drives still run a hefty chunk of change, and DDS-4 media aren't
that cheap. And the drives are still slow. Last I checked, drives were
$500 or more, and media is $25 each, and you get 20GB on a tape.
Initial cost to back up 100GB: $625 plus applicable taxes. Subsequent
cost to back up 100GB: $125 + applicable taxes. Speed: slow. Setup
* CD-RW is slow, and you still only get 800MB/CD. Does anyone out there
have the courage to run 'dump 0usdf 16000 64000 - / | cdrecord [args]'
and not worry about creating a coaster? Or would one have to pre-split
the backups into 800MB chunks and iso them before cd-recording them?
This would defeat the purpose entirely. Cost for a burner: $60.
100GB/0.8GB = 125 CD-RW. Price per CD-RW: $1. Initial cost: $185 + tax.
Subsequent cost: $125 + tax. Speed on writing: slow. Speed on reading:
Acceptable. Setup considerations: high.
* HD might run a little more. I've seen 100GB drives for $125 on sale,
maybe $150 otherwise. (IDE, obviously, since that's what we're discussing).
Initial cost: $150 + tax. Subsequent cost: $150 + tax, probably less
as HD prices go down. Speed on reading and writing: fast. Setup
This all misses the point that hot-swappable IDE would STILL be really nice
to have, for a variety of reasons.
NetBSD: Write Once, Run Everywhere. Java Optional.