Re: Dell CERC SATA 2S question -- software RAID instead?

2004-12-25 Thread Matthias F. Brandstetter
-- quoting Jonathan Reeder --
 Since the SATA RAID controller in the Dell PE SC420 isn't supported yet,
 is there anything I can do with atacontrol to run my two drives as a
 software RAID instead of relying on the controller?

 I've never used SATA before, so any advice anyone can offer is greatly
 appreciated.

If you're using FreeBSD 5.3 than you should take a look at man gmirror. 
This could be what you want. I am using it w/o any problems so far...

HTH! Greetings, Matthias

-- 
And remember not to act afraid.  Animals can smell fear.  And they
don't like it.

  -- Homer Simpson
 The Call of the Simpsons
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RE: Dell CERC SATA 2S question -- software RAID instead?

2004-12-21 Thread Jonathan Reeder
Since the SATA RAID controller in the Dell PE SC420 isn't supported yet, is
there anything I can do with atacontrol to run my two drives as a software
RAID instead of relying on the controller?

I've never used SATA before, so any advice anyone can offer is greatly
appreciated.


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Re: Dell CERC SATA 2S question -- software RAID instead?

2004-12-21 Thread Roger. O. Svenning
Jonathan Reeder wrote:
Since the SATA RAID controller in the Dell PE SC420 isn't supported yet, is
there anything I can do with atacontrol to run my two drives as a software
RAID instead of relying on the controller?
I've never used SATA before, so any advice anyone can offer is greatly
appreciated.
AFAIK you cant use software RAID on your system drives as the system has 
to boot before software RAID can be loaded.
Thus you would need a dedicated system drive which the system can boot 
from in order to load software raid on the other two disks.

This is probably not what you want.
Roger O. Svenning
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Re: Dell CERC SATA 2S question -- software RAID instead?

2004-12-21 Thread Peter Giessel
On Tuesday, December 21, 2004, at 07:15AM, Roger. O. Svenning [EMAIL 
PROTECTED] wrote:

Jonathan Reeder wrote:

Since the SATA RAID controller in the Dell PE SC420 isn't supported yet, is
there anything I can do with atacontrol to run my two drives as a software
RAID instead of relying on the controller?

I've never used SATA before, so any advice anyone can offer is greatly
appreciated.

AFAIK you cant use software RAID on your system drives as the system has 
to boot before software RAID can be loaded.
Thus you would need a dedicated system drive which the system can boot 
from in order to load software raid on the other two disks.

Not true.  Vinum is your friend (starting on the 16th page of the PDF):
http://www.vinumvm.org/cfbsd/vinum.pdf

If you are using 5.3, you probably want to look into gvinum...
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