Data center training courses include
lessons where technicians learn the differences between containers, volumes,
and partitions. These are components of an Apple computer’s file management
system. While they are all similar--all of these components hold data in some
way, shape, or form--there are also distinct differences. Let’s go over some of
those differences.
Let’s start with the basics. Almost all data is housed on a
volume, which is a storage device that a computer’s operating system can
recognize. Volumes come in many form factors, including CDs and DVDs, as well
as internal storage devices like solid-state drives and hard drives. These
devices are then formatted for the operating system to use.
Within a volume are partitions. A partition takes up space
in a volume. The operating system treats each partition as a separate drive--so
long as it can recognize it. For instance, it is possible to have a single hard
drive with three partitions formatted for an Apple operating system, and then a
fourth partition that is formatted in a file type it can’t recognize.
Starting with macOS High Sierra, Apple-enabled computers
could also utilize containers through APFS. Containers are a logical construct
of space that includes one or more volumes. An example of a container could be
a computer that uses more than one hard drive. The APFS would identify the hard
drives as part of the same organizational structure, allowing the user to
access them. The introduction of containers allowed for the implementation of
more versatile storage solutions.
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