[CentOS] Newby using IntelR1304BB Need help with installing 6.4

Fri May 31 19:10:50 UTC 2013
Norman Schklar <norman at schklar.com>

On Thu, May 30, 2013 at 8:15 PM, John R Pierce <pierce at hogranch.com> wrote:

> On 5/30/2013 4:59 PM, Norman Schklar wrote:
> > I plugged in the other 3 drives and went to the raid setup in Centos.
> > I created a raid 5 with the three disks.  It doesn't allow using the 1st
> os
> > boot disk in the raid.
> > Should I use a usb drive to host an install then once it's running
> install
> > the system again In the raided drives?
> booting from soft raid has limitations.   the /boot partition containing
> grub and the kernel either can't be raid or it can be mirrored, while
> the root partition can be full raid
> I generally avoid raid5/6 except for large scale bulk nearline archival
> storage, and use raid1 or 10 for all 'operational' stuff. I also tend to
> use 2 drives just for the OS and software, then seperate drives in
> whatever appropriate raid configuration for your large data (sql
> databases, websites, file server spaces, etc).... but I also don't like
> deploying raid without online hot spares. raid's only function is uptime
> availability in face of drive failures, and to aggreagate many drives
> into a single larger volume with potentially higher performance, its NOT
> a substitute for backups.
> Now looking for way to get software raid to setup for raid 10 then install
Centos 6.4.
This is still a new install, so not concerned with loss of any data.  I am
now booting into a 3.6 TB storage area which is 4 1TB drives.  I want it to
be +-2TB active as Raid 10.  How do I setup the software Raid before
installing Centos 6.4?