Re: POWER5 to POWER5+ Upgrade

Thanks for the replies so far.  However...

POWER5+ definitely can run on V5R3 OS.  I think V5R3M5 or V5R4 is only 
required for SAN load source etc.  Also, permanently applying cumulative 
package 6045 or later actually updates the marker PTFs to update the SLIC to 
RSH and OS to 530-10.  This means you don't have to slip install the LIC or 
install necessary version of OS (ie. 530-10).  Take a look at the 
following...
http://www-912.ibm.com/e_dir/eserverprereq.nsf/HW2/Hardware~iSeries~8312?OpenDocument
I need to be at least 235_185 firmware and HMC 5.2 but I'm trying to find 
out if I need to upgrade the firmware on the source system before I upgrade 
the hardware to POWER5+ (even though we are replacing the FSP as part of the 
upgrade process).
Thanks.
"Dean Boyle" <dean_boyle@xxxxxxxxxxx> wrote in message 
news:mailman.58.1168633307.3464.midrange-l@xxxxxxxxxxxxxxx

Hi,
Has anyone been involved in an i5 upgrade from a POWER5 to a POWER5+ box. 
In my case, the  upgrade only involves a new CEC (system unit)...all 
existing expansions will attach to the target configuration. I'm running 
V5R3 and I know that I have to permanently apply the latest cumulative PTF 
package to bring the LIC and OS levels to the latest resave version.  I 
will also have to upgrade the old version of HMC (V4) to at least 5.2 but 
does anyone know if I also have to upgrade the firmware before I upgrade 
the CEC? The FSP will obviously be replaced as part of the CEC swap and 
will come with a new firmware version but I'm sure I've read somewhere 
that the POWER5 source box still has to be upgraded to a recent firmware 
level BEFORE the upgrade to POWER5+?  I'm not sure why because the 
firmware resides in the FSP.  Anyone done this?
Any help appreciated.