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Message-ID: <20070327165802.13160.qmail@science.horizon.com> Date: 27 Mar 2007 12:58:02 -0400 From: linux@...izon.com To: jpiszcz@...idpixels.com, linux@...izon.com Cc: htejun@...il.com, jeff@...zik.org, linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: Why is NCQ enabled by default by libata? (2.6.20) > I meant you do not allocate the entire disk per raidset, which may alter > performance numbers. No, that would be silly. It does lower the average performance of the large RAID-5 area, but I don't know how ext3fs is allocating the blocks anyway, so > 04:00.0 RAID bus controller: Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller (rev 01) > I assume you mean 3132 right? Yes; did I mistype? 02:00.0 Mass storage controller: Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller (rev 01) 03:00.0 Mass storage controller: Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller (rev 01) 04:00.0 Mass storage controller: Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller (rev 01) > I also have 6 seagates, I'd need to run one > of these tests on them as well, also you took the micro jumper off the > Seagate 400s in the back as well right? Um... no, I don't remember doing anything like that. What micro jumper? It's been a while, but I just double-checked the drive manual and it doesn't mention any jumpers. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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