SUMMARY: Mixing UltraSparc 2 with/without mirrored Ecache
2007-12-25 2:14:00
The answer is : it will work, but is neither advisable nor supported.
Here are detailled answers :
------------------------------------------------------
Eugene's :
Yes, it will definitely work.
Make sure that the speeds are the same though - this is required. You should
be using 400Mhz CPUs, based on what you are saying. This is when the
transition occurred. (use /usr/platform/sun4u/sbin/prtdiag to see what you
have)
I would suggest moving a whole board at a time, if you have 400Mhz CPUs
(avoids torque wrenching)
The risk is higher:
Straight math: The higher number of CPUs, the higher chance of
failure -
this is normal.
Specific: The non-mirrored cache CPUs have a higher failure
rate than
mirrored (also called Sombra) processors. As such this also contributes to
risk.
The last risk portion should be evaluated. If it is a mission critical
system, rather look for Sun Refurb Sombras or buy used from a reputable
second user dealer. The part number is X2580A. Ask for mirrored SDRAM AND
TAG CACHE CPUs (PN 501/5814 or 501-5815 or 501-6009 all have mirrored SDRAM
AND mirrored TAG CACHE, not just SDRAM) Other have non-mirrored SDRAM and/or
Tag cache!
See http://sunsolve/sun/com -> Sun System Handbook
------------------------------------------------------
Hichael's :
it is not supported.
sun support will require the configuration returned to a supported
configuration before servicing it.
it will probably work.
how important is your data?
can you take a degradation in performance?
you will be happier to get another mirrored ecache cpu.
------------------------------------------------------
Richard's :
Hi,
This is fine as Sun have replaced some of our none mirrored with mirrored.
We now have some 400MHz 501-5838
---
Sebastien DAUBIGNE
sdaubigne at bordeaux-bersol.sema.slb.com - +33(0)5.57.26.56.36
SchlumbergerSema - SGS/DWH/Pessac
> -----Message d'origine-----
> De: DAUBIGNE Sebastien - BOR ( SDaubigne at bordeaux-bersol.sema.slb.com )
> [SMTP:SDaubigne at bordeaux-bersol.sema.slb.com]
> Date: jeudi 23 octobre 2003 11:01
> @: codeprof at codeprof.com
> Objet: Mixing UltraSparc 2 with/without mirrored Ecache
>
> Do you know if it is supported to mix mirrored Ecache UltraSparc 2 with
> non-mirrored one in a single Ultra-Enterprise server (e.g. E6500) ?
>
> We have an E6500 with mirrored Ecache US2 and would like to add more CPU
> from a E6000 that has non-mirrored Ecache.
>
> Is there any chance it could work ?
> Is there any potential risk ?
>
> ---
> Sebastien DAUBIGNE
> sdaubigne at bordeaux-bersol.sema.slb.com
> <mailto:sdaubigne at bordeaux-bersol.sema.slb.com> - (+33)5.57.26.56.36
> SchlumbergerSema - SGS/DWH/Pessac
> _______________________________________________
> codeprof mailing list
> codeprof at codeprof.com
> http://www.codeprof.com/execute/ask/?codeinfoid=26482
Comments
Got something to say?
You must be logged in to post a comment.
