Hi Eric, thank you for your thoughts. Eric D. Mudama wrote (ao): > 50/01 is the reset signature FIS. Is it possible that under load you > aren't supplying enough power to the drives, your 5V or 12V droops too > much, and the voltage protection circuitry on the drive causes it to > power cycle? Good you mention this, but I doubt it for several reasons. The nine disks are used in a chassis which can hold 26 disks, and the chassis comes with a 950W PSU. Right now the system uses 1.4A, which is 322W. I know one needs enough juice on the 5V and 12V, and thus cannot simple state that if a PSU has a high rating, it can cope with the load. But it only has nine out of 26 possible disks. The system has 4GB ram and two Opteron 244 cpu's. So that doesn't cause much power load either (compared to 16GB ram and two Opteron 280 cpu's, which is also should be able to handle). The disks run fine when connected to a Promise SX8 (albeit _very_ slow). I also connected the nine disk to the onboard nVidia, the SX8 and the Marvell, each sporting three disks. The errors always and only come from sata_mv. So I guess that the beta driver is indeed beta :-) I'll just wait for someone with more skills than me to have a look at the driver, and test any patches which result from that. I have a second system which can be used for that. The one we're talking about is in production right now. Sander -- Humilis IT Services and Solutions http://www.humilis.net - : send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
