On Tue, Dec 08, 2015 at 12:42:21AM +0300, The Ghost wrote: > > I just tried again. With relatime or noatime, the second drive spins up. > Always. With read-only, it never spins up. And that doesn't make sense... The superblock *does* get modified at mount time to update the last mount time and the mount count in the superblock. But I've tested using blktrace, and that's the only write I see after copying in a set of test files, reading them (so that atime > mtime), and then umounting the file system. I then started the blktrace, mounted the file system, and read all of the files using "tar cvzf /tmp/foo.tar.gz /mnt". Cheers, - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
