Vmware Clone Template Snapshot: What You Need to Know About Cloning, Templating, and Snapshotting VM

Some implementations are space-saving in that as you make the snapshot, not only are they creating smaller deltas or tracking the differences, but they have the ability to create a flexible clone -- when you make a clone, you can actually be doing modifications. You can be doing reads and writes, as opposed to just a straight read, such that any other subsequent clone can have less overhead than otherwise having the full model of the clone.

Major Differences Between Vmware Clone Template Snapshot

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Simple question about instant clones (non-persisten floating). The VM/template we use for the source on the pool, should we keep it off or on always? I keep it off. When I need to make changes I turn it on and make my change, turn it off and take my snapshot and leave it off until the next update/change.

Image Template: A common use case for block device layering is to createa base image and a snapshot that serves as a template for clones. Forexample: a user may create an image for a Linux distribution (for example,Ubuntu 22.04) and create a snapshot of it. The user may occasionally updatethe image and create a new snapshot (by using such commands as sudoapt-get update, sudo apt-get upgrade, or sudo apt-get dist-upgradefollowed by rbd snap create). As the image matures, the user can cloneany one of the snapshots.

Extended Template: A more advanced use case includes extending atemplate image to provide more information than a base image. Forexample, a user may clone an image (for example, a VM template) and installother software (for example, a database, a content management system, ananalytics system) and then snapshot the extended image, which may itself beupdated just like the base image.

Template Pool: One way to use block device layering is to create a poolthat contains (1) base images that act as templates and (2) snapshots ofthose templates. You may then extend read-only privileges to users so thatthey may clone the snapshots even though they do not have permissions thatallow them to write or execute within the pool.

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