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System experts,

We are looking to move an old 640 with 72 8gb disks to a new low end system. CPW should be no issue, but I'm concerned about disk IO performance in these 520+/515/525 systems.

I had hoped to go with an 8 disk system (CEC only), but from what I've read in the archives, you need an expansion box to be able to use a better RAID controller. How much of an improvement would a 0595 and something like a 5777 actually make over the integrated controller (w/5727 cache) ?

Does the new power 520 offer anything better ? Is the integrated SAS controller much of an improvement ? Can we put a better RAID directly in the CEC ?


TIA,
Keith

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