What is and how do we use the macOS Purgeable Storage's High Sierra

I've seen many users confused by What does "purgeable" mean to the volume available on Disk. "What is purgeable GB in available disk space?!“.

Whether you're talking about MacBook, Macbook Pro, Macbook Air, a common problem is limited storage space powered by drives SSD (Solid State Disk). Most models come equipped with SSDs of 256 GB or 512 GB, for the latter the price being much higher.

Apple has decided to solve the problem of limited space on the Mac, without working hard to come with higher volume hard drives. The simple and efficient solution is using iCloud for storing data on the hard disk.

Since MacOS Sierra, poppy users have the opportunity to use synchronization in iCloud of all the files from Documents and Desktop. We tell you from the experience that this feature works impeccably. Synchronization is done in real time, and files in Documents and Desktop can be accessed at any time on any device Apple (iPhone, iPad, iPod touch or other Mac) on which our account is authenticated by icloud under which synchronization is done on the Mac. Can be accessed and online via icloud.com.
Along with the synchronization in iCloud of files / folders through this feature, the user also has space optimization option from hard disk / ssd. Files arrived in iCloud and that are not used frequently, they are automatically deleted from the disk, to be accessible whenever we need them. These files can be easily identified in Finder, with iconed by Iloud next to the name.

By simply clicking on the cloud of iCloud, the file or director (folder) is downloaded back to the hard. With a modest internet connection, this is done very quickly.

On the system volume, at "info" or in disk utility, we see at the available space and a space "purgeable“.

"Available: 82,13 GB (14,32 GB purgeable)" - This means that we have 82 GB available, less a space / volume of files of 14.32 GB EC can be left only in iCloud forthwith to make room for other files on your hard. Can be cleaned / removed.
Therefore, the "Purgeable" space is occupied by files that are already synchronized in iCloud, but which are present on the hard disk.

A very good idea of Apple, profitable for both the user and the company, which offers for a fee packages with iCloud storage spaces. About 1 euro / month for 50 GB iCloud storage space, is a reasonable price.

By this method You can store on hard disk, a larger data volume than the capacity of. Apple has made this possible by the method of optimization and synchronization in iCloud of files in Documents and Desktop. You can buy an iCloud storage plan of 200 GB or even 1 TB in which to synchronize the files on the MacBook.

Tarifere per month For the euro area: 50GB: 0.99 €, 200GB: 2.99 € and 2tb: 9.99 €.