Re: Why is NCQ enabled by default by libata? (2.6.20)

From: linux
Date: Tue Mar 27 2007 - 12:58:31 EST


> 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.
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