Thanks to Eugene, Hichael, Richard. 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@bordeaux-bersol.sema.slb.com - +33(0)5.57.26.56.36 SchlumbergerSema - SGS/DWH/Pessac > -----Message d'origine----- > De: DAUBIGNE Sebastien - BOR ( SDaubigne@bordeaux-bersol.sema.slb.com ) > [SMTP:SDaubigne@bordeaux-bersol.sema.slb.com] > Date: jeudi 23 octobre 2003 11:01 > @: sunmanagers@sunmanagers.org > 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@bordeaux-bersol.sema.slb.com > <mailto:sdaubigne@bordeaux-bersol.sema.slb.com> - (+33)5.57.26.56.36 > SchlumbergerSema - SGS/DWH/Pessac > _______________________________________________ > sunmanagers mailing list > sunmanagers@sunmanagers.org > http://www.sunmanagers.org/mailman/listinfo/sunmanagers _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Thu Oct 23 11:59:33 2003
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