-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Ruslan Sivak Sent: Thursday, May 10, 2007 3:44 PM To: CentOS mailing list Subject: Re: [CentOS] Re: Anaconda doesn't support raid10
Ross S. W. Walker wrote:
How would I know if my system is using NCQ? I think my drives and card should support it.
Get the controller make/model and look it up, then get the drives make/model and look it up. If they both support NCQ then you should be good.
While your there get the sustained data transfer rate, total read seek time (includes rotational latency) and total write seek time.
-Ross
I can get all that data, but can I actually test it somehow? Does linux know anything about NCQ, or is everything abstracted to the controller?
Good question, not knowing the answer I did a quick google and this came to the top:
http://linux-ata.org/driver-status.html
another good one,
http://blog.kovyrin.net/2006/08/11/turn-on-ncq-on-ich-linux/
Looks like support wasn't added until 2.6.18 and isn't widely supported until 2.6.19 and 2.6.20.
-Ross
______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.