Feizhou wrote:
Is there a way to get it to use the raid that's part of the bios
chip?
Repeat after me. There is no raid that is part of the bios chip. It
is just a simple table.
Yes, I know this is fakeraid, aka softraid, but I was hoping that
using the drivers would make it easier to support raid 10 then with
mdadm, which seems to be impossible to get to work with the
installer. I'm not even sure why the raid10 personality is not
loaded, as it seems to have been part of the mdadm since version 1.7.
I don't know about a raid10 personality but on boxes I used to run, I
had raid1 and raid0 personalities loaded...
According to this, as well as other sources, the raid10 personality
should be in the kernel by now:
http://cgi.cse.unsw.edu.au/~neilb/01093607424
I do have raid1 and raid0 personalities, but I can't seem to combine
them in the way that the installer would let me install on it.
I did
2 drives in md11 as raid1
2 drives in md12 as raid1
md11 and md12 in md10 as raid0
Anaconda only sees md11 and md12
I can set up LVM on top of md11 and md12. Is that really raid10 though?
Something about device mapper?
You need the fake raid driver dmraid if you are going to set up
stuff in the bios. What version of centos are you trying to install?
libata in Centos 5 should support this without having to resort to
the ide drivers.
_________________________________
I'm trying to install centos 5 - the latest. How would I go about
using dmraid and/or libata? The installer picks up the drives as
individual drives. There is a drive on the silicon image website,
but it's for RHEL4, and I couldn't get it to work. I'm open to using
md for raid, or even LVM, if it supports it. I just want to be able
to use raid10, as I can't trust raid5 anymore.
There you go. The installer picks up the drives individually so the
installation process treats them as such but the raid bios does not
and so leads to booting problems. Just blow the raid array configured
in the si311x bios the thing should be able to boot. Check also your
motherboard bios settings too.
_______________________________________________
I will try this. I do know it loads up the SIL3112 driver during the
installation process. Is this only so it can read the drives? I though
the whole process was transparent and didn't need special drivers if
it's just seeing them as single drives?
Russ
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