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I have a SAN (HP MASA 2012) running seagate Cheetah 15k.6 drives. One has failed and I have a replacement drive that is the same except for it is a 15k.5 drive. Is this ok to run in the SAN? What are the repercussions, if any?

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Sounds like a question you should direct to HP Support. – EEAA Mar 4 '13 at 17:50

Sounds like you've chosen to run non-HP disks in that MSA, meaning it's not a supported configuration, is that right? if so then there's little real difference between those generations of disks, I can't promise they'll work, but it probably will. Obviously if I'm wrong and you are using HP supported disks then so long as they're a supported disk then HP will your array.

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Yes, this will work. But why not use the purpose-built part? Why aren't you replacing the disk using your HP contract. Those drives are warranteed for 3 years.

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