Re: Adaptec 1210SA SATA Controller Performance
From: Hugo Mills
Date: Tue Feb 24 2004 - 11:14:59 EST
On Tue, Feb 24, 2004 at 03:10:15PM +0100, Patrick Petermair wrote:
> Yesterday I've setup a server with Adaptec's 1210SA SATA Controller and
> 2 SATA disks. According to the kernel changelog the controller is
> supported since 2.6.2
> I've installed Debian on an IDE disk, built a 2.6.3 kernel with
> CONFIG_SCSI_SATA_SIL, rebooted and the kernel detected the controller
> plus both SATA disks (sda, sdb). As the next step I wanted to create a
> software raid 1 with the 2 SATA disks. Because it took mdadm forever to
> finish, I checked /proc/mdstat and saw a progress bar with a rate of 12MB/s!
> Even my oldest IDE disk is faster than this. Is there a way to tweak the
> SATA controller/disk with some kernel-options or is the driver not
> providing more speed?
You don't say what make of disk these are. It may be that you've
fallen foul of the Seagate/SiI erratum, which (as far as I can tell)
still kills performance. I have a 120GiB Seagate disk attached to a
SiI3112 controller, and I'm lucky if I get 12MiB/s with the IDE-layer
driver. I haven't tried the libata driver yet.
I'm not too worried about that set-up, because I don't need massive
performance off that disk anyway, but something faster might be
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