HP Smart Array Controllers – extremely slow virtual machines

hewlettpackard_logo.jpg   HP recommends that customers purchase an optional Battery Backed Write Cache (BBWC) Module to achieve optimal disk subsystem performance on ProLiant series servers. Certain Virtual Machine (VM) operations such as cloning and powering on VMs may significantly impact disk subsystem performance on the VMs configured with Smart Array controllers that do not include Battery Backed Write Cache


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