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Re: Fault tolerance configure for DL165 and D2600

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You can't with a D2600. The reason is that the intelligence is in the SmartArray P411 controller, and that server is maintaining the disk system.

You do have two options:
1) Manual failover - if you have a second server with a SmartArray controller, if the server ever failed, you could reboot the D2600 attached to the second server and be fine. RAID groups created by one SmartArray controller are recognized by other SmartArray controllers, allowing you to swap RAID drives between systems. HOWEVER, it should be noted there is a potential for data loss when moving an array from one controller to another if the controller cache hasn't been written back to disk completely, and this is not the best option.

2) Use a HP P2000 SAS-attached SAN. The HP P2000 has the intelligence in the controllers on the storage array, and does support use with clustering technologies such as Windows Cluster to do an active/passive type failover cluster. Because the P2000 has redundant controllers and the intelligence is in the storage box, I'd recommend this as the better solution.

Of course, there's higher end solutions that do more and more when it comes to redundancy, but I think this has been sufficient to answer I hope.

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