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SaneSAN2010: Serial to Serial – When One Bottleneck Isn’t Enough

I was recently looking into a storage-related performance problem at a customer site. The system was an Oracle 10.2.0.4/SLES 9 Linux system, Fibre Channel attached to an EMC DMX storage array. The DMX was replicated to a DR site using SRDF/S. The problem was only really visible during the overnight batch runs, so AWR reports [...]