Qlogic default queue depth windows

Choose the types of newsletters you want to receive! How Can I Set the Depth o Hi team! Like 0 Dislike 0 Favorite 0 Share Report. Back to list. You need to log in to comment to the post Login Register. Should you have any questions, please contact e. Notice: To protect the legitimate rights and interests of you, the community, and third parties, do not release content that may bring legal risks to all parties, including but are not limited to the following: Politically sensitive content Content concerning pornography, gambling, and drug abuse Content that may disclose or infringe upon others ' commercial secrets, intellectual properties, including trade marks, copyrights, and patents, and personal privacy Do not share your account and password with others.

All operations performed using your account will be regarded as your own actions and all consequences arising therefrom will be borne by you. For details, see " User Agreement. My Followers. Are you sure to block this user? Users on your blacklist cannot comment on your post,cannot mention you, cannot send you private messages.

Why did we change it? The bottom line is that this is a significant change between 4. It is something to keep in mind if you are planning to upgrade to 5. Emulex device queue depth settings have not changed between releases. It is still 30 if I remember correctly.

View all posts by Cormac. This is absolutely spot on. Indeed, this was necessary for better support for performance differentiation using Storage IO Control. Very timely, great article. What settings should he be setting for queue depths in either case? After many hours of driver code reading, i had to figure out the best value for the number of LUNs that were deployed on our box. Thank you for sharing these details. A quick query; what is the adapter queue limit of Emulex HBA..? Thanks for your response.

Just to clarify, I was looking for the queue limit at Adapter level. You mentioned that its for Qlogic; what is the relevant value for Emulex..? Ah — I see, sorry. Well, Qlogic used to expose this information in the proc nodes of the ESXi host.

Today the numbers are different on Qlogic cards. Qlogic sets the default value to Please note that the Microsoft storport.

Please use the following procedure to change the qd parameter: 1. Enter a value upto 0xFE. The default value is 32 0x Click OK. Exit the Registry Editor, then shutdown and reboot the system. Wednesday, February 22, PM. Wednesday, March 14, AM. Thank you Shani! Is execution Throttle and Queue depth both are same? Sunil Kumar Devangam.

Thursday, March 15, PM. For Qlogic execution Throttle is the term for Queue depth and for Emulex adapters it is termed as queue depth Thank you, Shani. Friday, March 16, AM. Hi Shani, Thanks a lot for your confirmation.

Monday, March 19, AM. Proposed as answer by prosper edmund Monday, March 19, PM. Monday, March 19, PM. Tuesday, March 20, AM. There are some caveats around queue depth it seems: Increasing the hba depth will have a negative impact on your performance unless your OS io queue is constantly high.