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QLE2462 adapter slow transfer rates

Last week, I bought two QLogic Fibre Channel adapters QLE2462 to start learning about Storage Area Network. I put it to two Dell PowerEdge T110 Servers and connected them using two LC-LC duplex ...
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RAC disk timeouts vs powerpath

what precautions one needs to take at OS disk timeout , powerpath(possible tunings) and oracle CRS level as well ...to make sure when there is a path failure oracle RAC would not start evicting nodes ...
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VL15Dropped Infiniband Errors

Has anyone seen VL15Dropped errors before? The only thing I can find about it is a definition... "VL15Dropped: The number of incoming VL15 packets dropped due to resource limitations (for example, ...
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IBM HS22 QLogic SAN

We are trying to install a linux (Centos 6.6, 7.0, Ubuntu 15.04) on an IBM blade HS22 without local disks. The disk is provided by a SAN using two QLogic HBA (we are using multipath). We tried to ...