VA7100 and scsi queue_depth on hpux

[Denver Osborn]

Any suggestions on what would offer better performance from a VA7100... more/smaller LUNs with a default hpux scsi queue_depth = 8, or fewer/larger LUNs with a larger queue_depth?Thanks for any feedback and recommendations!-denver

[Hemanth Gurunath Basrur]

Hello Denver,

Can you check if the foll. links help?

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg35039

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg35219

Regards,
Hemanth

[Roger Buckthal_2]

I'd also add that the LUN count or size has no effect on the native performance of the VA. A 7100 can demonstrate maximum performance with a single LUN. Howerver, as the HPUX default queue depth paper indicates, for HPUX and a single LUN, you must have sufficient queue depth.