VMware Cloud Community
RobMokkink
Expert
Expert

lpfc_740 + emulex + queuedepth

I have a question regarding the emulex driver for esx 3.5

We currently use esx 3.5 Update 1 with all the patches till the end of june.

I found a interesting article at:

In the article they change the lun_queue_depth and not he hba_queue_depth

Has anyone any experience wheter they can change the parameters yet for the lpfc_740 driver?

Thanks in advance.

Reply
0 Kudos
2 Replies
CiscoKid
Enthusiast
Enthusiast

We had to make Queue Depth changes on our Emulex LPe1105s installed in BL480c Blade Servers which use the lpfc_740 driver as per to address SCSI Reservation errors in our logs. So far we have not see these errors after the Queue Depth changes were performed on all servers connecting to the same LUNs. In our case we need to set the Queue Depth value to 2 because we had 8 hosts connecting to any given LUN.

RobMokkink
Expert
Expert

Hi CiscoKid,

Thanks for your response.

I will test it asap.

I am normally used to Qlogic hba's, which i set to a queuedepth of 64. We also have 8 or even more ESX hosts in a cluster, setting the queuedepth to 2 does not make much sense.

Reply
0 Kudos