Re: raid Re: Whats with this new Debian installer?

[John Summerfield <debian@ComputerDatasafe.com.au>]

Alvin Oga wrote:

> On Mon, 9 Aug 2004, Paul Gear wrote:
>
>  
>
> > Joey Hess wrote:
> >    
> ..
>  
>
> > > - software RAID support
> > >      
> > But not on /boot or /.  I find this just unfathomable.  What do i do if
> > the disk containing / dies?
> >    
>
>
> if raid is configured properly ... it will still boot ...
>
> if /  is on /dev/hda and /dev/hdc  ... and one of the disk dies
> 	- yow will still be able to boot
>
> if / is on /dev/hda and /dev/hdc and /dev/hde ... and 2 of the disks dies,
> 	- you will still be able to boot
>
> if you have 4 disks ... you will always be able to boot 99.99% of the time
> without touching the keyboard
> 	/dev/md0 == /dev/hda + /dev/hdd in raid1 mirror
> 	/dev/md1 == /dev/hdb + /dev/hdc in raid1 mirror
>
> 	/dev/md0 and /dev/md1 is stripped ( raid0 ) for faster reading
> 	( but not all systems support it properly - bios and raid config
> 	problem )
>
> data ( /home ) should always be raid5 across those 4 disks 
> 	or raid1 .. mirror ... or whatever you want
>
> ==
>  

Paul wants / and /boot on mdo and/or md0. I can do it, but the installer 
can't. Paul wants to be able to take either one drive out and boot. Always.


--

Cheers
John

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