On 10/28/2012 08:12 PM, joystick wrote: > On 10/28/12 23:10, Phil Turmel wrote: >> The drives I've suffered with on this have ignored the link reset and >> were still unresponsive when MD tried to rewrite the sector(s) involved >> (from the other drives in the array). > > Very interesting > > I would like to see this behaviour to make some experiments. > I would like to simulate an unreadable sector... > I see --make-bad-sector in hdparm, does that simulate an unreadable > sector faithfully? I've never tried this, but the description of that option suggests that it does. > (e.g. will it even be recorded in SMART current_pending_sector / > reallocated_sector_ct ?) Pending, I would presume. Which should go away when you write back over it. > Also, how do I trigger a link reset manually? That I don't know. But you should get one when you try to read back that bad sector, if the drive timeout is longer than the driver timeout. Phil -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
