Hello,
I've searched hi and low for hours on how to setup my system of a RAID

1 and basically what it comes down to is ccd and/or Raid Frame. I've

found helpful docs on using some of the commands and where to put my

configurations but nothing seems complete enough for me to figure it

out.
I have OpenBSD 4.1 installed on one disk and I have an exact duplicate

disk where i want to mirror my installation to incase of disk failure.

If this needs to be setup during install I'm willing reinstall

everything or if there is a way to configure my disks for ccd and

mirror them to the second disk then I'm willing to do that also.
Basically I don't know how to get this ball rolling, I've read 1) I

must change the disk type with disk label to ccd. Then 2) create ccd0

with ccdconfig and tell it to mirror disk 1 to disk 2. It then 3)

finally says to put my configuration into ccd.conf so that it can be

read in on boot by my system and of course put the stuff in fstab to

have it mounted on boot but thats all I know, everything is very vague

and no exact details on how to do this step by step with a new install

or a already running system.
Can someone please help provide a step by step way to mirror my whole

disk to a second disk by ressetting back up OpenBSD from scratch or if

possible configure my already installed system? I don't care if its

with ccd or another tool as long as I have a disk failover solution.
Please Please Please and Thanks!

- Jake

Hi,
Not for CCD, but raidframe..
Search the mailing list archives for a thread with a subject "Seeking

info for RAID 1 on OpenBSD".  In there you will find all sorts of info.
http://marc.info/?l=openbsd-misc&m=116360194522004&w=2
http://www.packetmischief.ca/openbsd/doc/raidadmin/
Good Luck,
Thanks,

Steve Williams

I personnaly used the following doc to set up my software raid 1 frame :

http://www.linux.com/articles/52713
good luck :)

Hey,
I tried following that article but I got stuck at the part where you

start partition your second drive. I created the first partition with

100mb and type of 4.2 BSD then when I tried to create the second

partition on my drive as FS_RAID as the article says but it said that

FS_RAID is an unknown type and treated my partition as unknown?
To me that part of the article on how to partition my disk is totally

unclear. All it says is make the first partition 100m for the boot

which makes sense then it doesn't say how to partition the rest of

your drive to setup for the RAID 1? Can someone clarify this a bit

more please? I'm stuck.
Thanks,

- Jake
Anyways how do I fix this FS_RAID problem

The FS_RAID filesystem type is called (in OpenBSD disklabel for

i386) just plain RAID. Type "RAID" at the prompt for filesystem type.

(Side note: on e.g the platform sparc64 you use "4.2BSD", not "RAID")
Then go on and follow the article again. There are other articles like

that out there, I followed some other that was clearer on that point...

Nowdays I tend to improvise. I prefer to retain the whole base

installation that was used to build the raid-aware kernel (if I have

the diskpace) in case of disaster. Then one does not have to start

with a broken mirror - it can be created whole at once.
By the way, I recall rumours about some other RAID implementation coming
-- 
/ Raimo Niskanen, Erlang/OTP, Ericsson AB

It's there, but not in GENERIC. Note the CAVEATS.

http://www.openbsd.org/cgi-bin/man.cgi?query=softraid

If I remember correctly, you have to use FS type RAID, and not FS type FS_RAID.

for the partition layout, the /boot on 100MB is to allow the machine

to boot, but after that, you put all your files in "logical

subdivisions" of the raid array.

I my case, I didn't use wd*a (/boot) in the /etc/fstab, as I don't

need it for day-to-day operation.
Last thing, instead of writing the raid.conf file under /etc, copy it

(if you can) from man raidctl, raidctl is very very very bad at

interpreting this file, and fail with a useless error message whenever

it finds whitespaces, tab, or CR where he didn't intend to...
nico

I'm very new to OBSD and BSDs in general, coming from Debian Linux

(which now does raid1 from the installer).  I notice that both OBSD and

NetBSD use raidframe and ccd.  The NetBSD FAQ has a chapter on setting

up raidframe for root raid1.  Perhaps it would give some direction.  I

do not know if it is the correct approach for OBSD.
Doug.