automatic native command queueing

page_seven · 09-14-2010, 04:26 PM

Is NCQ(Native Command Queueing) usually automatically enabled by libata when a disk supports it? I am using libata.force=ncq in my command line and wonder if forcing it might hurt the drive.

H_TeXMeX_H · 09-15-2010, 04:28 AM

In AHCI mode NCQ is automatically enabled. I doubt that enabling it will hurt the drive. You can check if it is enabled if you run:

Code:

dmesg | grep ncq

or there might be other ways.

page_seven · 09-15-2010, 02:38 PM

How can I tell if my motherboard supports AHCI?

H_TeXMeX_H · 09-15-2010, 03:11 PM

It should be in the manual or the BIOS options, check the SATA controller options.

page_seven · 09-15-2010, 11:46 PM

If it says no under NCQ for my chip (https://ata.wiki.kernel.org/index.ph...dware_features), forcing it will do nothing?

H_TeXMeX_H · 09-16-2010, 04:19 AM

Quote:

Originally Posted by page_seven

If it says no under NCQ for my chip (https://ata.wiki.kernel.org/index.ph...dware_features), forcing it will do nothing?

If it says that it is not available, then yes forcing it will not do anything.