AX100 dual controller model change to single controller perfomanace

Question

AX100 dual controller model change to single controller without degrade the performance. In case a dual controller AX100, failed one controller, the Array will have certain degrade. Is there any workaround (re-enable the cache memory in alive SP or disable the failed controller -- make it invisible from alive SP or something like that, I don't know) to make the alive controller to work as single controller AX100 without degrade the performance. Is there any Release Note or White Paper will mentioned this work? I just want know it does or not work, but need EMC support docs.

Christopher2019 · Answer

' You can not downgrade failed dual controller AX100 to healthy single controller AX100, so better 'don't try it at home'.You can only upgrade AX100SC to AX100. 'May I refer your above messages to customer about their AX100 performance issue as EMC supporting documentThanks

De La Soul · Answer

Basically if you have one failed storage processor, write cache is going to disable until you get the failed SP fixed which you are going to suffer a performance hit. Most folks don't notice the performance hit from light to medium load.

Woodsta

CLARiiON

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