Re: laptop configuration
Date: Fri, 28 Oct 2011 10:57:14 -0500
Message-ID: <4EAAD0DA.5080601_at_ardentperf.com>
Paging won't be a huge problem as long as you do this: 1) use 900MB vm's (two of these fit easily in 4G of physical memory, bigger VMs might start swapping)
2) make sure to unlock the CRS memory inside the VMs - this releases over a GB of physical mem which doesn't need to be locked in a sandbox, and indeed it's the only way to have a usable environment on a lower-end laptop
this script will unlock the CRS memory in 11gR2: https://github.com/ardentperf/racattack/blob/master/makeDVD/root/fix_cssd/fix_cssd.sh
-Jeremy
On 10/28/2011 10:46 AM, LS Cheng wrote:
> You can have 4GB and run 11gR2 RAC, I was doing it with 11.2.0.1 but
> it just want fun playing with a system which constantly was paging and
> everything was *slow*!
>
>
> --
> LSC
>
>
> On Fri, Oct 28, 2011 at 3:45 PM, Jeremy Schneider
> <jeremy.schneider_at_ardentperf.com
> <mailto:jeremy.schneider_at_ardentperf.com>> wrote:
>
> At OpenWorld we had a table where we spent every morning
> installing RAC
> on people's laptops. It's possible to run 11gR2 RAC with 4G of
> memory,
> but 3G was pushing it. We even tried on one or two machines with
> 2G...
> that didn't work. :) Don't configure less than 900MB in the VMs... I
> have successfully done 11gR2 with 760M per VM but I had some
> problems to
> overcome on the way.
>
> This being said, if you get more memory then things will go easier.
> Also you can do things like run more than 2 nodes. And one final
> consideration is whether you want to use this laptop for other
> things as
> well... for example if you're going to run Eclipse or something at the
> same time then you'll need more memory to support it. (Or another
> example - a web browser with many open tabs/windows can use quite
> a bit
> of memory.)
>
> In addition to this, I'd strongly suggest getting a second hard
> drive to
> spread the I/O. (USB2 is fine - you can get a 300G disk that's
> powered
> through the USB cable for about $40.) The RAC Attack wikibook
> that Kish
> mentioned is a great resource for running RAC on low-end laptops. Tim
> Hall's site also has some great tutorials, though he uses a bit
> more memory.
>
> -Jeremy
>
>
> On 10/28/2011 12:24 AM, LS Cheng wrote:
> > Hi
> > You need at least 8GB memory to run 11gR2 RAC, for each VM you
> would have to
> > assign 3GB minimum.
> >
> > I have Dell Precision M4500 with quadcore i7, 8GB memory and
> 256GB SSD and
> > it's more than enough to run your configuration.
> >
> >
> >
> > --
> > LSC
> >
> >
> > On Thu, Oct 27, 2011 at 8:26 PM, K R <kp0773_at_gmail.com
> <mailto:kp0773_at_gmail.com>> wrote:
> >
> >> All,
> >> I am thinking of buying a laptop to install virtualbox and
> install
> >> oracle
> >> 11gR2 RAC with OEL. What configuration and vendor I should
> be going for
> >> .
> >> Looking for any suggestion from the List members.
> >>
> >> Appreciate any pointers.
> >>
> >> Thanks
> >> Kart
> >>
>
> --
> http://www.ardentperf.com
> +1 312-725-9249 <tel:%2B1%20312-725-9249>
>
> Jeremy Schneider
> Chicago
>
>
-- http://www.ardentperf.com +1 312-725-9249 Jeremy Schneider Chicago -- http://www.freelists.org/webpage/oracle-lReceived on Fri Oct 28 2011 - 10:57:14 CDT