church1e's blog

A repository of information technology questions and answers

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Instant Image Cheat Sheet

Simply put, the software takes a picture, and then tracks any changes made since the copy is made through the use of a bitmap.

UFS snaphots

Basically, a snapshot is read-only copy of a file system (for the purpose of backup).

ZFS Snapshots and Clones

The difference between a snapshot and a clone is that a clone is a writable, mountable copy of the file system.