On 11/01/15 12:32, Jeroen Van den Keybus wrote: > when a SMART command is issued during the transfers, > occasionally the following error occurs: [...] > Thanks for any advice, I've seen several models of WD drive which fail when you issue SMART commands during heavy I/O load, (all older vintages of drive than yours, but I've largely avoided WD since then so couldn't say with much certainty if they've fixed these issues in their drive firmware). I've also seen multiple failures under load with multiple Marvell controllers (all Marvell AHCI controllers) unless NCQ is disabled. Best guess is that this is due to a long standing controller design fault. If I were seeing this problem, and I had a spare PCIe slot, then I'd swap out the Marvell based controller for either 2x Silicon Image 3132 based cards, or alternatively 2x Asmedia 1061 (e.g. SY-PEX40039), to see if the problems go away. I'm using both controller chips in high load situations without problems at the moment. Tim. -- To unsubscribe from this list: 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
