On Sun, Dec 28, 2003 at 04:47:55PM +1100, Neil Brown wrote: > On Sunday December 28, daniel.com@wtnord.net wrote: > > I have a Raid5 system of four 160GB SATA disks. The drives > > themselves work fine, but when large files (a few hundred > > megs) are written to the raid disks they get corrupted after > > a random amount of data. The kernel is Linus 2.6.0. > > > > Any hints you can give me to get this working is highly > > appreciated. > > What file system? XFS. I've tested a "cp a b; md5sum a b" on a 500MB file on both the Raid disk as well as a normal partition on one of the disks, and the latter works perfectly every time while the former fails every time. > Are you using DeviceMapper over the raid5? Yes. > If you are using DeviceMapper, can you try without it? > (I don't think there is a proble with DeviceMapper, but it drives > raid5 slightly differently to e.g. direct ext3 and could trigger a bug > in raid5.) I get the same problem without it, just a few more "dma_intr: DriveReady SeekComplete Error" in the syslog. There seems to be various opinions on whether to use the siimage driver or the sata_sil driver with a Sil3112 SATA card. For me there isn't much choice though, since the sata_sil driver makes my machine crash when I activate the second network card. /Basic - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
