Version 1.9.3 of Jettison is available, bringing a number of improvements and fixes to our drive management app.
Jettison now understands volume groups, which are the coupled drives that house a macOS system and its associated data. If you manually eject or mount a system drive, Jettison will also eject or mount the data drive that’s associated with that system. You can’t eject the system you’re currently running, but if you’ve got a second copy of macOS installed – like the macOS Tahoe beta that Apple is currently testing – Jettison will handle its data drive for you automatically.
If you’ve got Jettison set up to eject drives when your Mac goes to sleep, it normally waits 5 seconds after the machine wakes up before it tries to remount those ejected drives. That gives external drives time to power up before Jettison goes looking for them, but in some cases that’s not long enough. You can now specify a longer delay in your settings if you’ve got a drive that’s not reliably remounting after sleep:
This update also adds support for NTFS and extFS drives mounted over a network, and fixes a bug that caused SSHFS drives to eject really, really slowly. In addition, the macOS corespotlightd and managedcorespotlightd processes are quit before any external drive is ejected. This gets rid of problems with those processes keeping a drive busy and causing errors when Jettison tried to eject it.
And one more thing… Jettison’s progress window would sometimes get stuck on-screen if you were running a beta of macOS Tahoe. This should be fixed in version 1.9.3 – at least I can no longer reproduce it here. If you run into further problems with Tahoe, let me know.
This update is free for folks who’ve already purchased a license for Jettison – thank you! Just choose “Check for Update” in Jettison’s menu in your menu bar. Or for release notes and download links, visit the What’s New page.


