Google Cloud Storage FAQs


Which storage class do you recommend that I use?

Please ensure you have read through the Google documentation on storage classes here:

Ultimately, the best storage class for your situation depends on how often you intend to access the archived data in storage. 

CloudM Archive accesses data in cloud storage in the following scenarios:

  • Archive operations
  • Restore operations
  • Purge operations

The choice of storage class depends on how often you expect to perform the above operations. For example, Nearline storage costs can be as much as 3x cheaper than Standard storage (depending on region). However, charges apply whenever data is accessed.

We recommend that you use the Google Cloud Storage price calculator here:


Will CloudM Archive cause any additional charges to be applied to my Google Cloud Storage account?

For a full overview of how Google Cloud Storage pricing works, please see their official documentation:

Data storage and data retrieval costs are covered in the answer above and completely rely on the storage class you intend to use and how much data that you intend to archive. 

Network costs occur whenever data is read from cloud storage, also known as egress. Egress charges from Google Cloud Storage should be minimal unless restoring very large amounts of data per month. A full egress pricing breakdown can be seen here:

Operations costs may occur as CloudM Archive does use some class A and class B operations. However each GCS account has a free quota of operations per month and the amount of operations used by CloudM Archive depends entirely on how the product is used. 

Below is a breakdown of all of the class A and class B operations used by CloudM Archive:


Class A




Twice per item migrated when archiving a user


Twice per item migrated when archiving a user


Twice per item migrated when archiving a user


Once per user archived or once per restore operation


Class B




Twice per item migrated when archiving a user or performing a restore


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