how to change ucs hba queue depth for esxi 5.1

[Dragomir]

hi

how do I change the queue depth for an esxi host in 5.1 for ucs b200?

In esxi

I type esxcli system module parameters -m list 

it shows

~ # esxcli system module parameters  list -m  fnic

Name                     Type  Value  Description

-----------------------  ----  -----  -------------------------------------------------------------------------

fnic_fc_trace_max_pages  uint         Total allocated memory pages for fc trace buffer

fnic_max_qdepth          uint         Queue depth to report for each LUN

fnic_trace_max_pages     uint         Total allocated memory pages for fnic trace buffer

heap_initial             int          Initial heap size allocated for the driver.

heap_max                 int          Maximum attainable heap size for the driver.

skb_mpool_initial        int          Driver's minimum private socket buffer memory pool size.

skb_mpool_max            int          Maximum attainable private socket buffer memory pool size for the driver.

how do I change it and what is the recommended queue depth?

[Walter Dey · Accepted solution]

Has been covered before, see e.g.

https://supportforums.cisco.com/discussion/12215126/queue-depth-execution-throttle

https://supportforums.cisco.com/discussion/11744776/ucs-hba-queue-depth-vmware-esxi-51

[Dragomir]

hi

does it require a reboot for this?

[Dragomir]

is it recommeded to change the queue depth to 128 or higher? what is the best practice? default is 32 for esxi 5.1