Algorithm for deciding when to wake a drive?

site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com Hi, André-John _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... I have a user complaining that one of his hard-disks is spinning up when he is not expecting it. What algorithm does Darwin/MacOS X use to decide when to wake a drive? For example is it when the file system is accessed or a specific volume, or does it vary based on certain conditions? This email sent to site_archiver@lists.apple.com