Well, Dell went to replace my hard drive, and they seem to be aware of the problem since they replace it by another one (a Seagate ST91208220AS) on which I can apply partly the bug fix : * with -B 255 it completely stops the parking/unparking cycle * with -B 254 it does nothing.
The my previous one was a really strange case, and more when we know that the Samsung was recognized in the SMART database, and the Seagate is not ! Last but not least, hdparm is always giving me the BIOS value for PowerManagement (set to 254) but this value is NOT applied by default on Ubuntu, and if I change it to 255, hdparm still indicates 254... Here I do not understand : either I have a bad configuration or either the problem is not "that simple" as the ugly fix let us suggest ! My conclusion is that, as I said, the ugly fix works (fortunatly) for about 95% of cases, but it is not fixing directly the "real" problem : I think it is not yet a direct solution. We have to find (and define) the true cause of this "too much" cycling. I hope such information can help, and I am looking forward to give more if needed. Mathieu -- High frequency of load/unload cycles on some hard disks may shorten lifetime https://bugs.launchpad.net/bugs/59695 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
