[j-nsp] M10i JUNOS Upgrade

[Jonas Frey (Probe Networks)]

Jake,

as far as i know you need more than 512MB dram to go past JunOS 10.x.
(I know there was a limitation but i dont recall where in detail).
Any way with less than 768MB Ram you are asking for trouble with any
modern JunOS.
Best would be to upgrade your RE-5 to 768 MB which is the max.

The RE-5 only comes with 256MB sticks, so you would only need to buy 1
more. This will be fine if you buy them from juniper ($$$).
If you are going the 3rd party route then it'll be better to buy 3x256MB
sticks since otherwise the chip types wont match which could lead to
problems. The cost for these is probably just a few dollars...

512MB sticks only work on the RE-5+ aka RE-850.

As for the upgrade: Get yourself a install media (or create one) and
save yourself the trouble of going via various intermediate versions
(also this would be alot faster).

-Jonas


Am Mittwoch, den 28.09.2011, 15:27 -0400 schrieb James Jones:
> Just a tip I have found it always easier to backup everything and use the
> jinstall file.
> 
> 
> 
> 
> 
> On Wed, Sep 28, 2011 at 3:06 PM, Jeff Wheeler <jsw at inconcepts.biz> wrote:
> 
> > On Wed, Sep 28, 2011 at 2:43 PM, Jake Jake <2012jake at gmail.com> wrote:
> > > I am looking at upgrading the JUNOS on our M10i router. Current JUNOS
> > > platform is 6.3R1.3 . The router has redundant routing Engine  RE-5.0
> > with
> > > 512MB DRAM . Also there is no compact flash on board only *ad1s1*. Can
> > any
> > > one suggest on if I can upgrade the router to 11.1R5.4 with the current
> > > hardware specification .  Please advise on if a direct upgrade can be
> > done
> > > as well from 6.3 to 11.1.
> >
> > If you have DFZ routes you should upgrade the RAM to 768MB, or
> > alternatively, replace the router or buy more modern routing engines.
> > There is a big jump in memory usage in 8.x and if you have only 512MB
> > and are carrying "Internet" BGP routes, you will be using the swap and
> > the RE will perform badly.
> >
> > No, you cannot do a direct upgrade from 6.3 to 11.1.  You'll be going
> > through quite a few intermediate software versions to do that.  It
> > will be easier to simply reinstall Junos from an 11.1 install-media
> > disk and then load your configuration.
> >
> > > Plus as I understand M10i has 3 DRAM slots. Is there any way of knowing
> > the
> > > combination of RAM used ..i.e 256+256MB or a single 512MB RAM.
> >
> > I don't think the RE-5.0 will recognize more than 256MB per slot.
> >
> > --
> > Jeff S Wheeler <jsw at inconcepts.biz>
> > Sr Network Operator  /  Innovative Network Concepts
> >
> > _______________________________________________
> > juniper-nsp mailing list juniper-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/juniper-nsp
> >
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