Snapshot of Persistent Disk Storage
  • Snapshot of Persistent Disk Storage

Snapshot of Persistent Disk Storage

£2.32
VAT excluded

Increase your Snapshot Presistent Storage. By default, each Compute Engine instance has 100GB. When your applications require additional storage space, you can add one or more additional storage options to your instance.

This will add to your existing 100GB Snapshot Persistent Disk Storage and charged monthly.

Snapshot Persistent Disk Storage
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Snapshot Persistent Disk Storage

Increase your Snapshot Presistent Storage. By default, each Compute Engine instance has 100GB. When your applications require additional storage space, you can add one or more additional storage options to your instance.



Persistent Disk Snapshots

Use snapshots to back up data from your persistent disks. Snapshots are different from public images and custom images, which are used primarily to create instances or configure instance templates. Snapshots are useful for periodic backup of the data on your persistent disks. You can create snapshots from persistent disks even while they are attached to running instances.

Snapshots are incremental, so you can create regular snapshots on a persistent disk faster and at a much lower cost than if you regularly created a full image of the disk. Incremental snapshots work in the following manner:

The first successful snapshot of a persistent disk is a full snapshot that contains all the data on the persistent disk.

The second snapshot only contains any new data or modified data since the first snapshot. Data that hasn't changed since snapshot 1 isn't included. Instead, snapshot 2 contains references to snapshot 1 for any unchanged data.

Snapshot 3 contains any new or changed data since snapshot 2 but won't contain any unchanged data from snapshot 1 or 2. Instead, snapshot 3 contains references to blocks in snapshot 1 and snapshot 2 for any unchanged data.

This repeats for all subsequent snapshots of the persistent disk. Snapshots are always created based on the last successful snapshot taken.

CESU0005-10GB