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<blockquote data-quote="Randy B. Singer" data-source="post: 1944873" data-attributes="member: 190607">Some thoughts:Neither Disk Warrior, nor any other third party disk utility, can repair the directory on a drive formatted as APFS.&nbsp; None.&nbsp; No matter what they say on their Web site.&nbsp; Apple never released the full specs for APFS, so no one has been able to update their utility software to handle APFS.&nbsp; Your only option is to run Apple's Disk Utility/First Aid.&nbsp; There are no other choices.The problem with removing an SSD from a Macintosh and putting it into an external case kit is that Apple has used several different types and attachment formats of SSD's, and many of them have been proprietary.&nbsp; So you have to be very careful about figuring out which you have and seeing what, if anything, is compatible. This should help:Apple Proprietary SSDs: Ultimate Guide to Specs &amp; Upgrades <a href="https://beetstech.com/blog/apple-proprietary-ssd-ultimate-guide-to-specs-and-upgrades" target="_blank">https://beetstech.com/blog/apple-proprietary-ssd-ultimate-guide-to-specs-and-upgrades</a>It doesn't happen often, but SSD's do sometimes completely fail.&nbsp; The good news is that when they do so, they usually don't become bricks, but instead they become read-only.&nbsp; That, thankfully, means that you can back up the data on them before replacing them,You might want to use this excellent utility to figure out what is going on with your SSD:DriveDX<a href="http://binaryfruit.com/drivedx" target="_blank">http://binaryfruit.com/drivedx</a></blockquote>

[QUOTE="Randy B. Singer, post: 1944873, member: 190607"] Some thoughts: Neither Disk Warrior, nor any other third party disk utility, can repair the directory on a drive formatted as APFS. None. No matter what they say on their Web site. Apple never released the full specs for APFS, so no one has been able to update their utility software to handle APFS. Your only option is to run Apple's Disk Utility/First Aid. There are no other choices. The problem with removing an SSD from a Macintosh and putting it into an external case kit is that Apple has used several different types and attachment formats of SSD's, and many of them have been proprietary. So you have to be very careful about figuring out which you have and seeing what, if anything, is compatible. This should help: Apple Proprietary SSDs: Ultimate Guide to Specs & Upgrades [URL code="true"]https://beetstech.com/blog/apple-proprietary-ssd-ultimate-guide-to-specs-and-upgrades[/URL] It doesn't happen often, but SSD's do sometimes completely fail. The good news is that when they do so, they usually don't become bricks, but instead they become read-only. That, thankfully, means that you can back up the data on them before replacing them, You might want to use this excellent utility to figure out what is going on with your SSD: DriveDX [URL code="true"]http://binaryfruit.com/drivedx[/URL] [/QUOTE]

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