Hello, I'm writing to everyone who reported to me or linux-ide about frequent head unload problem and the report is not yet committed to storage-fixup.conf. I'm a bit worried about the explosion of reports because I really wanna avoid creating false entries as they will increase power consumption on Linux unnecessarily. I've just updated the Known Issues wiki page. Here are the update parts. Note that modern laptop drives are supposed to unload frequently to save power. Unless the unloading is excessive, disabling powersaving is not a good idea. It seems that most modern drives are rated for 600,000 load/unload cycles which translates to about two years of uptime at 35 unloads per hour. Even when assuming continuous 12 hours of usage everyday, this means the drive will only reach its rated load/unload cycle limit after four years and shouldn't be considered malfunctioning. Please only report cases where the expected uptime is significantly lower than two years. ... Also, please include how many times the drive unloads the head per-hour under nominal usage without any adjustment. Machines currently on the storage.fixup list are (or at least supposed to be) the extreme cases where the drive unloads its head multiple times per minute decreasing its life expectancy to under a year. Please double check your machine falls into this category. Thanks a lot. -- 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
