If you only want to clone 100GB of data, that sparse disk image will only be 100GB in size. It’s also limited by the actual size of the underlying volume – so you obviously can’t clone 100GB into a 50GB volume. A “sparse disk image” is a disk image that grows and shrinks with the data you write on it. It’s essentially a “clone” that you can mount as a virtual drive. Let me explain.Ī disk image is a computer file soft copy of a disk volume or a data storage device. However, for those who often clone drives using sparse disk images, being unaware of this issue could cause a gut wrenching case of data loss. Data-Breaking issue with APFS-formatted Sparse Disk Imagesįor most users, this is a minor bug that will most likely never affect them. However, it’s a relatively young technology with a few issues that need ironing out. Common Problems with APFS VolumesĪPFS is one of the best file systems to date because it’s efficient and reliable. When installed on an SSD, it engages with data a bit differently from traditional devices – so if you’re trying to recover data from an SSD, go to this section of the article. It’s optimized for solid state drives (SSD), although it can run on common traditional media like hard drives, external flash storage, etc. An APFS (Apple File System) is a relatively new system built exclusively by and for Apple machines, and it’s supposed to be way faster and more efficient, more secure, and easier to back up. Simply, it’s how a drive organizes its files and folders. To answer this question, let’s first understand what a “ File System” is.
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