[CentOS] "multi-boot" drive partitioning

[redhat at mckerrs.net]

----- Original Message ----- 
From: "Frank Cox" <theatre at sasktel.net> 
To: "CentOS mailing list" <centos at centos.org> 
Sent: Tuesday, December 18, 2007 2:43:08 PM (GMT+1000) Australia/Brisbane 
Subject: Re: [CentOS] "multi-boot" drive partitioning 

On Mon, 17 Dec 2007 21:52:59 -0600 
Frank Cox <theatre at sasktel.net> wrote: 


> I don't want to complicate this thing any more than I have to. I want to be 
> able to put this machine in the corner and tell the guy who owns the place 
> that if his webserver quits, he can put the spare online and hit "1", if the 
> application server quits, put it online and hit "2" and so on. And 4 
> independent and separate Centos installations sounds like the easiest way to 
> accomplish that, if I knew how to partition the disk. 




**** 


I don't understand what you are trying to achieve. Some sort of (poor mans) redundancy at the hard disk level ? When would the "webserver quit" ? E.g. if your motherboard dies then it doesn't matter how many copies of an os you have spread over how many disks, the whole thing is unavailable. 

Why not mirror the two 300gb drives, using software raid and install the centos virtualization and run any number of vms *all the time* ? 


I think what you are looking at doing is way more complicated than setting up a few vms under xen. But that may just be because I have experience with virtualization. 


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