dusty@xxxxxx wrote: > Sorry for my late answer, but i had to sort this out first. > After replacing the first PSU with a new Corsair 650W the power no longer > fluctuated more than 0,01 V (and this only when booting up the drives...) > I did a full resync on both raid arrays and got no more errors or resets, > but there were some inconsitencies during sync and the xfs filesystem on > both arrays had to be repaired. Are these problems caused by the pm resets > ? libata EH won't lose any data as long as the hardware doesn't. If power fluctuates causing your drive to briefly power down - this does happen and you can hear the drive doing emergency unload when it happens, the data in write buffer can be lost. On coming back, all that libata can know is that the PHY suffered brief connection loss, so it resets the device and goes on, so the data in the cache is lost now. It's basically pulling the power plug from the harddrive while write is going on and connecting it back quickly. You're bound to lose data. -- tejun - 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
