When selecting a volume for cache storage, you may notice that not all disks connected to your Mac appear in the list. 
This happens because CloudMounter supports cache storage only on volumes formatted with the APFS (Encrypted) file system. If a disk is formatted using another file system, it won’t be available for selection.
Why don't I see all disks available for cache? Print
Modified on: Thu, 2 Apr, 2026 at 2:13 PM
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