On 22 Sep 2007, at 08:42, Roland Smith wrote:
On Fri, Sep 21, 2007 at 11:50:58PM +0100, Gabriel Dragffy wrote:
Hi all
Hoping to get some help setting up software RAID5. Guides on the
internet
seem to be few and far between, and official documentation is a
little too
technical. Basically I have 3 x 500GB hard drives which I'd like
to have in
a raid5 configuration, using software, root partition on their too
would be
a bonus. I'd be grateful for assistance.
What you need for RAID5 is gvinum(8), which replaces the older vinum
(4)
driver.
Hi, reading the BSD Handbook I did find this out and I've been trying
to use it.
If you google for gvinum you'll find tutorials etc.
I have found a couple of tutorials but like I said it is either too
technical, or not descriptive enough and none of them describe root
on raid 5 :(
AFAICT, you can't have the root device on a RAID5 gvinum. Just make a
small root partition.
I read in the FreeBSD hanbook that I can have root on raid 5 by doing
the following:
"There is another option as well, to have /boot/loader (Section
12.3.3) load the vinum kernel module early, before starting the
kernel. This can be accomplished by putting the line:
geom_vinum_load="YES"
into the file /boot/loader.conf."
This was on the following page: http://www.freebsd.org/doc/
en_US.ISO8859-1/books/handbook/vinum-root.html
The handbook is good, but it only describes how to do raid 0 and raid
1, it says I can do raid 5 but doesn't describe the process. I also
totally stumped at how to make a raid 5 device and install freebsd on
it - the sysinstall doesn't allow the configuration of raid arrays
and I can only install to a slice. I need access to tools such as
gvinum before installation... but how? Oh the pain!
best regards
gabriel
Roland
--
R.F.Smith http://www.xs4all.nl/
~rsmith/
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