Re: hdparm tuning
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Anthony Krishock wrote:
AFAIK only a small subset of the hdparm parameters work for sd devices. I think you'd be better off with sdparm.Thanks, Luke.. I take your statement to mean that I could step through one of the numerous examples of hdparm tuning on the web (Such as http://tldp.org/LDP/solrhe/Securing-Optimizing-Linux-RH-Edition-v1.3/chap6se c74.html) without causing any damage? Also.. for my setup, sda is the Windows XP side (NTFS). Should I only mess with the linux side (sdb)? Thanks Tony -----Original Message----- From: ataraid-list-bounces@xxxxxxxxxx [mailto:ataraid-list-bounces@xxxxxxxxxx] On Behalf Of ataraid-list-request@xxxxxxxxxx Sent: Monday, April 14, 2008 12:00 PM To: ataraid-list@xxxxxxxxxx Subject: Ataraid-list Digest, Vol 50, Issue 2 Send Ataraid-list mailing list submissions to ataraid-list@xxxxxxxxxx To subscribe or unsubscribe via the World Wide Web, visit https://www.redhat.com/mailman/listinfo/ataraid-list or, via email, send a message with subject or body 'help' to ataraid-list-request@xxxxxxxxxx You can reach the person managing the list at ataraid-list-owner@xxxxxxxxxx When replying, please edit your Subject line so it is more specific than "Re: Contents of Ataraid-list digest..." Today's Topics: 1. Re: dmraid performance tuning? (Luke Yelavich) ---------------------------------------------------------------------- Message: 1 Date: Mon, 14 Apr 2008 08:26:47 +1000 From: Luke Yelavich <luke.yelavich@xxxxxxxxxxxxx> Subject: Re: dmraid performance tuning? To: ataraid-list@xxxxxxxxxx Message-ID: <20080413222647.GA8333@xxxxxxxxxxxxxxxxxxx> Content-Type: text/plain; charset=us-ascii; x-action=pgp-signed -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Mon, Apr 14, 2008 at 01:30:03AM EST, Anthony Krishock wrote:That said.. I have one question. Is it possible to tune a dmraid disk inthesame way that you would using hdparm? If so.. What are the steps involved?Yes, you would use the device node of the disk or disks that are part of the array. So hdparm -d 1 /dev/sda would enable dma for sda, the first drive in the array. I don't think trying to do this with the device mapper nodes would work.
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