Does disabling NCQ cause any bad effects on the computer?
by NeroAngelo from LinuxQuestions.org on (#51ZTR)
A few months ago, I started seeing these errors on my computer
Code:[39441.061917] ata3.01: exception Emask 0x100 SAct 0xe SErr 0x0 action 0x6 frozenWhat I did was replace the old SATA cables with new ones and the errors stopped popping up.
However today the exact same error messages were shown when my computer crashed while I was doing something important. I was able to see these errors when I switched to tty1.
Now I'm pretty sure, that it isn't my cable's fault as it is only 2-3 weeks old. What I did was to disable NCQ by typing Code:GRUB_CMDLINE_LINUX="libata.force=noncq in my Code:/etc/default/grub file and BOY it worked like a charm. However, I'm a little bit concerned that it might have a bad effect on my computer because Wikipedia states NCQ like this:
This(NCQ) can reduce the amount of unnecessary drive head movement, resulting in increased performance (and slightly decreased wear of the drive) for workloads where multiple simultaneous read/write requests are outstanding, most often occurring in server-type applications.
Will disabling NCQ have a bad effect on my computer overall?


Code:[39441.061917] ata3.01: exception Emask 0x100 SAct 0xe SErr 0x0 action 0x6 frozenWhat I did was replace the old SATA cables with new ones and the errors stopped popping up.
However today the exact same error messages were shown when my computer crashed while I was doing something important. I was able to see these errors when I switched to tty1.
Now I'm pretty sure, that it isn't my cable's fault as it is only 2-3 weeks old. What I did was to disable NCQ by typing Code:GRUB_CMDLINE_LINUX="libata.force=noncq in my Code:/etc/default/grub file and BOY it worked like a charm. However, I'm a little bit concerned that it might have a bad effect on my computer because Wikipedia states NCQ like this:
This(NCQ) can reduce the amount of unnecessary drive head movement, resulting in increased performance (and slightly decreased wear of the drive) for workloads where multiple simultaneous read/write requests are outstanding, most often occurring in server-type applications.
Will disabling NCQ have a bad effect on my computer overall?