Which version of macOS ?

YoYotta requires an Apple computer running macOS 10.11 or newer
macOS 10.14.5 or newer is recommended
macOS 10.14.5 is required for processing ALEXA Mini LF MXF wrapped ProRes
YoYotta Transcode decoding and encoding H.265/HEVC requires macOS 10.13 or newer

macOS 11 Big Sur is supported, no issues found, but let us know if you have any problems.
The new Apple Silicon M1 Macs have great performance and YoYotta runs well.
However SAS, FibreChannel and Thunderbolt LTO drives require new drivers for M1 Macs.
So these Macs will not support LTFS workflow until new drivers are released.
Check for updates with the SAS or FC interface manufacturer.


macOS 11 Big Sur supported computers
MacBook (2015 and later)
MacBook Air (2013 and later)
MacBook Pro (2013 and later)
Mac mini (2014 and later)
iMac (2014 and later)
iMac Pro (2017 and later)
Mac Pro (2013 and later)

macOS 10.15 Catalina supported computers
MacBook (2015 and later)
MacBook Air (2012 and later)
MacBook Pro (2012 and later)
Mac mini (2012 and later)
iMac (2012 and later)
iMac Pro (2017 and later)
Mac Pro (2013 and later)

macOS 10.14 Mohave supported computers
MacBook (2015 and later)
MacBook Air (2012 and later)
MacBook Pro (2012 and later)
Mac mini (2012 and later)
iMac (2012 and later)
iMac Pro (2017 and later)
Old Mac Pro (2010 and later with Metal-capable GPU)
Mac Pro (2013 and later)

macOS 10.13 High Sierra or 10.12 Sierra supported computers
MacBook (Late 2009 and later)
MacBook Air (Late 2010 and later)
MacBook Pro (Mid 2010 and later)
Mac mini (Mid 2010 and later)
iMac (Late 2009 and later)
Mac Pro (2010 and later)

macOS 10.11 El Capitan supported computers
MacBook (Late 2008 Aluminium and later)
MacBook Air (Late 2008 and later)
MacBook Pro (Mid/Late 2007 and later)
Mac mini (2009 and later)
iMac (2007 and later)
Mac Pro (2008 and later)
XServe (2009)

Most Macs running 10.7, 10.8, 10.9 and 10.10 can be updated to 10.11.
Some older computers like the MacPro1,1 (2006) and 2,1 (2007) do not support a newer macOS.
For these systems we would upgrading to a Mac mini and move your ATTO SAS or FC card inside a Sonnet Thunderbolt enclosure.

A good way to upgrade with APFS is to add a new volume and install on that. This leaves the old volume available for booting.
If you have a fixed drive inside your Mac then ensure you use a program like SuperDuper to backup the entire boot drive to an external drive.
Then reformat the internal drive.
This gives you a clean install, but doesn't destroy the data on your old system. So if needed you can boot the old macOS or copy across items that are missing.
Even if you don't want to update to a new major version, we would recommend that you run the latest minor version. For example if you are on 10.11.2 update to 10.11.6.

Please get in touch with support@yoyotta.com if you need any help or have further questions.


macOS 10.13 and newer System Security

New installs of drivers and system software from ATTO, OSXFUSE (developer is Benjamin Fleischer) may need approval.
You will see a message saying System Extension Blocked
Also the first time you use YoYotta to read TAR tapes on a new system, you will need to approve YoYotta System Software.
Open the Security & Privacy page in Apple System Preferences, unlock the padlock and click Allow to enable the System software to load.

You must click the Allow button directly on the Mac, clicking using remote screen sharing will not work.
If the Allow button is not shown then reboot your Mac, try again to use LTFS or TAR tapes (which will fail) and then check the Security & Privacy page again.
Also ensure that you have the latest macOS 10.13.6, 10.14.6 or 10.15


Screen Sharing

YoYotta keeps the Mac awake when jobs are running.
However when working with LTO tapes it is best to also disable system sleep in System Preferences. Leaving screen sleep enabled is fine.

If using remote screen sharing, then when sharing stops the Mac can be locked and start sleeping.
To prevent this, type the following into the Apple terminal. You will need to enter your Mac account password.
sudo defaults write /Library/Preferences/com.apple.RemoteManagement RestoreMachineState -bool NO

Which Apple computer to use with YoYotta software ?

Apple Mac Hardware

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