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#ENCRYPT OPTION DOES NOT APPEAR ON MAC SIERRA FOR EXTERNAL DRIVE PDF#
#ENCRYPT OPTION DOES NOT APPEAR ON MAC SIERRA FOR EXTERNAL DRIVE UPDATE#

One con is enabling FileVault 2 can have a negative impact on I/O performance of approximately 20-30% of modern CPUs. What are the pros and cons to using FileVault 2? Some of the pros include it supports legacy hardware, and deployment may be locally or centrally managed by users or the IT department.Some users running more recent versions of OS X can also enable disk encryption, while others using older versions of OS X will only be able to utilize legacy FileVault, which encrypts just their home folder. Is FileVault 2 available to all macOS users? All macOS users can enable FileVault 2 to protect their data.The recent high-profile security breaches make it even more important to know about encryption programs such as FileVault 2. Why does FileVault 2 matter? Encryption of data at rest or stored on a disk is often the last resort to ensuring that data is protected against unauthorized access.What is FileVault 2, and how does it encrypt data? FileVault 2 is a whole-disk encryption program that encrypts data on a Mac to prevent unauthorized access from anyone that does not have the decryption key or user's account credentials.

#ENCRYPT OPTION DOES NOT APPEAR ON MAC SIERRA FOR EXTERNAL DRIVE PDF#

Note: This article is included in the free PDF download Apple FileVault 2: Tips for IT pros.

#ENCRYPT OPTION DOES NOT APPEAR ON MAC SIERRA FOR EXTERNAL DRIVE UPDATE#

We will update this article if there's new information about FileVault 2. This comprehensive guide about Apple's FileVault 2 covers features, system requirements, and more. FileVault 2 has been available to each version of OS X/macOS since 10.7 the legacy FileVault is still available in earlier versions of OS X. Beginning with OS X 10.7 (Lion), Apple redesigned the encryption scheme and released it as FileVault 2-the program offers whole-disk encryption alongside newer, stronger encryption standards. If there are any, First Aid will fix them and macOS should then mount the disk without any further hassle.Apple's FileVault encryption program was initially introduced with OS X 10.3 (Panther), and it allowed for the encryption of a user's home folder only. Running First Aid on an external disk is a useful way to make sure the format or file structure doesn’t contain any faults or issues.

Select Run to perform disk diagnostics and fix any issues.

If this doesn’t work, you may need to use the Verify Disk utility to make sure everything is working as it should.

Open Finder and navigate to the drive in Devices.

The volume should shift from gray to normal to signify it has been mounted.

Highlight the volume and select Mount.

If a volume is present but not mounted, it should be grayed out here.

Check for a volume if the disk is present.

Make sure the disk is listed in the left window.Attach the drive if it isn’t already connected.This should be done automatically when macOS detects the drive, but it doesn’t always work. If you think the drive works fine, let us see if we can manually attach it to macOS. By default, it doesn’t display much and the setting to not show external disks may be enabled. Use a USB power cable if you suspect this to be the issue.ĭepending on what you find here, you can troubleshoot either the drive or your Mac.įirst, make sure Finder will display drive icons. A USB cable carries 5V and if this is the sole power source for the drive, it may not be enough.

Check that the drive is receiving enough power.Make sure your drive doesn’t have or use a power-saving or sleep function.Try attaching the external drive to another computer to see if it works on that one to rule out damage to the drive itself.Some imported drives come completely empty, and while macOS should detect and offer to format them, it doesn’t always work. Make sure the drive has been formatted.Reboot your Mac to see if it was an open program or app stopping the drive from being detected.Try a different wall outlet if there is one nearby.Change the hard drive power cable if you have a spare.Check the condition of the cable and swap it if you have a spare.Check that the external hard drive has power if it needs it.Check that the cable from the hard drive to your Mac is connected properly.After all, no one wants to waste half a day because they didn’t realize something just wasn’t plugged in properly. Get into the habit of doing this with any computer issues, as it can save time, money, and hassle in the long run.