HBA Queue Depth

[rmueller@willkie.com]

Hi,

we use B200 M2 blades with M81KR on 2.02r, running Exchange 2010 on ESXi 5.0 with PowerPath /VE 5.7, the UCS is attached via MDS to a VMAX.

EMC Best Practise for EX2k10 is to use PowePath and set the HBA queue depth to 128.

How?

I picked the "FC Adaptor Policy VMware" for the service profiles with the default values (64, 64, 512). Should I change anything here?

Any other idea what to change where? I am just performance concerned.

Thanks!

[padramas]

Hello Robert,

The LUN Queue depth parameter is hardcoded in the driver and is not exposed via FC adapter policy.

For Windows, it is 255.

http://www.cisco.com/en/US/docs/unified_computing/ucs/sw/gui/config/guide/2.0/b_UCSM_GUI_Configuration_Guide_2_0_chapter_011001.html#d111973e739a1635

For Windows, you can use the " FC Adapter Policy Windows " as baseline reference as it has default recommended values.

Padma