I was refering to the statement "leave as SMP so as to reduce possible
hassles if and when a 2nd CPU is added".

I was just curious as to why.  I then thought that - no matter what system
options I have - data is always safe and cna be restored to any new e-smith
installation.

Richard.


----- Original Message -----
From: "Gordon Rowell" <[EMAIL PROTECTED]>
To: "Richard Ford" <[EMAIL PROTECTED]>
Cc: "e-smith-Dev" <[EMAIL PROTECTED]>
Sent: Sunday, April 08, 2001 4:04 PM
Subject: Re: [e-smith-devinfo] Esmith-up


> On Sun, Apr 08, 2001 at 03:49:50PM +1000, Richard Ford
<[EMAIL PROTECTED]> wrote:
> > [...]
> > But, I can do a full backup - fresh install and restore?
>
> Sorry - I don't understand what you're trying to ask here. Full backup
> and restore will be unaffected - the kernel and related files are not
backed
> up by the e-smith network backup. They are backed up to tape, but are not
> restored by the e-smith tape restore.
>
> > Or is there some more fundamental data writing operations that change
> > with smp?
>
> SMP affects whether more than one processor is used for running tasks
> in the system. There are extra checks enabled in the kernel around
> critical code regions.
>
> There should be no change whatsoever to day-to-day operations. Well, the
> SMP kernel may run _marginally_ slower on a single processor than the
> uniprocessor kernel would.
>
> The only difference is in the kernel modules. Once they are available for
> SMP (which they are for 4.1.1 plus the updates), there is no difference.
>
> Gordon
> --
>   Gordon Rowell                         [EMAIL PROTECTED]
>   http://www.e-smith.org (development)  http://www.e-smith.com (corporate)
>   Phone: +61 (0418) 467 366 Fax: +1 (613) 564 7739
>   e-smith, inc. 1500-150 Metcalfe St, Ottawa, ON K2P 1P1 Canada
>

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