When you say disk performance, I would assume this local disk. If you're referring to remote LUN performance that's a different story. Since you're talking about swapping the CNA I take it you're referencing an FC Storage LUN - correct?
Can you give more specifics on the performance #'s you're seeing? Some benchmarks would really help.
Swapping the VIC for the 2nd Gen Qlogic CNA is only giving you a faster FC ASIC (8Gb/s vs. 4Gb/s on the VIC). This wouldn't account for your issue as you say there's a difference between bare metal and Hypervisors when using the VIC...
Other details we need:
-Version of UCSM (including CIMC, BIOS and adapter FW versions)
Just wonder we recently try to add 2 M200 with firmware 4.1.1b, our UCS manager version is 4.0.2d, we got error said cannot donwgrade. I know we can update ucs manager from 4.0 to 4.1, bur wonder we can downgrade
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What can we collect before opening a case for Unified Computing System(UCS) ?
Serial Number and Part Details
UCS Server Serial Number : e.g. XXXXXXX in Serial number field. Check UCSM or CIMC
Product ID(PID) o...