Messages in this thread | | | Date | Tue, 24 Feb 2004 16:06:11 +0000 | From | Hugo Mills <> | Subject | Re: Adaptec 1210SA SATA Controller Performance |
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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 nice. :)
Hugo.
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