Date: Mon, 1 Nov 1999 01:11:19 -0500 (EST) From: Greg Skouby <gskouby@ns0.sitesnow.com> To: freebsd-questions@freebsd.org Subject: vinum RAID-5 again Message-ID: <Pine.BSF.4.10.9911010103400.80104-100000@ns0.sitesnow.com>
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Hello,
I got this sample RAID-5 config off of lemis.com/vinum and it
seems over simplified to the point where I don't think I understand it. If
at any time in this message you think I need to go back and RTFM please
stop reading and let me know that. This is the sample config for RAID-5
that I am referring to:
drive e device /dev/da6h
volume raid5
plex org raid5 512k
sd length 128m drive a
sd length 128m drive b
sd length 128m drive c
sd length 128m drive d
sd length 128m drive e
I have a couple of questions about this. Is this config only slicing up
one drive? That is what I gather from the config but the theory behind
RAID-5 is that you need at least 3 for there to be a point in using
RAID-5. So one of my many questions is that where do the drive a, drive b,
drive c, drive d, and drive e 's come from? Are there seperated
statements for those devices like there is for the drive e? Something such
as drive a devide /dev/da0h?
I guess I am just confused. Let me hit you up with the scenario that I am
trying to use RAID-5 in. I have 4 external seagate drives of 23gigs each.
I want to use those 4 drives in a RAID-5 array. They are da0 through da3.
The drive where the OS sits is da4. I am wondering what I need to do to
get RAID-5 running across those four drives. Thanks for all of your help.
I appreciated it.
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