The most important setting difference : -i Display the identification info which the kernel drivers (IDE, libata) have stored from boot/configuration time. This may differ from the current information obtainable directly from the drive itself with the -I flag. The data returned may or may not be current, depending on activity since booting the system. For a more detailed interpretation of the identification info, refer to AT Attachment Interface for Disk Drives, ANSI ASC X3T9.2 working draft, revision 4a, April 19/93, and later editions. -I Request identification info directly from the drive, which is displayed in a new expanded format with considerably more detail than with the older -i flag.
http://linux.die.net/man/8/hdparm So considering this report as "invalid" ** Changed in: hdparm (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/31072 Title: Hard drive BuffSize=0kB To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/hdparm/+bug/31072/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs