[nflug] Here is something I should know, but I've never tried it in a production environment, so...

[David J. Andruczyk]

 LVM has many advantages. i.e. when your raid card decides to present the devices in an alternate order, or you power up with a USB stick plugged in and that becomes /dev/sda, or your new box has a SATA device in it and hte kernel decides that's /dev/sda,  you'll wish you used LVM, or label based mounts.



-- David J. Andruczyk



----- Original Message ----
From: Richard Hubbard <rhubby at yahoo.com>
To: nflug at nflug.org
Sent: Monday, June 23, 2008 3:59:17 PM
Subject: Re: [nflug] Here is something I should know, but I've never tried it in a production environment, so...


Good old fashioned partition mounting (We don't need no stinkin' LVM!). The raid is hardware through the megaraid card, so as long as the flash remembers it's stuff, I shouldn't have a problem.

The raid partition is 3 virtual machines, 2 running, and the rest of the machine is pretty plain jane, with VMWare server installed.  One of the vm's is huge, though.(250 gb), so it would be much nicer if I didn't have to rebuild it.

I checked with a couple of people here, and they seem to be of the opinion that it should work.

Cross your fingers!

 <span style="font-family:comic sans ms;">Richard Hubbard </span>
ATTO Technology Inc



----- Original Message ----
From: Darin Perusich <Darin.Perusich at cognigencorp.com>
To: nflug at nflug.org
Sent: Monday, June 23, 2008 3:25:01 PM
Subject: Re: [nflug] Here is something I should know, but I've never tried it in a production environment, so...

I can't think of any reason why it shouldn't work but without knowing 
how everything is setup, LVM, raid, etc, it's only an informed guess. 
I'd make sure you have a full level 0 backup before you start playing 
around with this, just in case.

Richard Hubbard wrote:
> I have one older, slower server with CENT OS 5.1 on it.  So far, so good.
> 
> I want to move it over to another, newer, physical box.  No problem.
> 
> Problem: I have a drive array set up on the old box using an LSI 
> magaraid 6 SATA card.
> 
> Could I just take the physical drives out of the old box, put them into 
> the new box, complete with the Megaraid card, and have the CENT OS 
> recognize all the different hardware?
> 
> // I'm guessing "yes", but I'm worried about the drive array.  That has 
> the important data. The boot drive is a pretty generic setup and can be 
> remade in minutes.  The raid array would take a few days to rebuild.
>  
> Richard Hubbard
> ATTO Technology Inc
> 
> 
> 
> ------------------------------------------------------------------------
> 
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> nflug at nflug.org
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-- 
Darin Perusich
Unix Systems Administrator
Cognigen Corporation
395 Youngs Rd.
Williamsville, NY 14221
Phone: 716-633-3463
Email: darinper at cognigencorp.com
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