Thanks for the reply. In HyperV world here so unfortunately I cannot match your process. I just want to be certain that I am covering the process correctly at controller level. From what I have read I believe I have to add the 2 physical disks to each server, then at controller level ADD the new disks to the existing Array:- BUT then crucially I have to create NEW logical drive with those 2 disks?? <-- that is my key question I guess that this then presents a new disk within Disk Management, add this to the VSA and then within the management software add as a new disk:- Pg 34 of the manual also suggests:- "IMPORTANT: If you are adding disks to StoreVirtual VSAs that are already in a cluster, be aware that the process may take more time and that the CMC does not prevent multiple storage systems in a cluster from being taken offline. When adding a disk, the storage system is restarted and the new disk is formatted. The format operation may take a long time to complete if the new disk is large. New writes are then resynchronized with the other storage systems in the cluster, which can impact performance. Has that been your experience. Thanks the assistance.
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