Backup of GKE

[dparihar24]

Hello All,

Can anyone help me to get the answer of the below question on Backup of GKE tool?

1. I want to know about compression ratio for example, a cluster of size 80 TB how much data will be compressed for backup?
2. I want to know about how the process of full and incremental backups will be implemented in a backup retention period of 7 days and also want to know about more details on “Daily rate of change of data (%)” and its impact on cost for Backup of GKE?
3. I want to know that if the backup for a GKE cluster is taken in different regions than Cluster location, will it be compressed at the source region or the destination region?

Thank You

[dionv]

Hello dparihar24,

For your questions, here is the overview documentation for backup for GKE. For your question:

Number 1, there is no published documentation for the compression ratio once backup was initiated.

Number 2, you can consider checking this guide for installation of the backup for GKE. There were no indication for choosing if the backup will be under full or incremental backup, instead the options provided are for config backups and volume backups, which will be discussed in the documentation. 

Number 3, here is a reference 

• BackupPlan

  • Defines the region where all backup artifacts produced via the BackupPlan will be stored (both config backups and volume backups). If the cluster being backed up via a BackupPlanis in a different region than the BackupPlan, this could incur inter-region data transfer fees when performing those backups.

    Note: VolumeBackup resources (nested below BackupPlan and Backup resources) may contain a reference to a global snapshot resource. However, even though the resource location is global, the data associated with that snapshot is restricted to the BackupPlan resource's region.

  • Defines the allowed region for CMEK keys (see About CMEK encryption). If you want to register a CMEK key for encrypting backup artifacts, the key must have the same region as the BackupPlan.

• RestorePlan

  • Defines the region where backup artifacts will be restored. The target cluster referenced in a RestorePlan must be either a zonal or regional cluster within the same region as the RestorePlan. If the RestorePlan region is different than the BackupPlan region, this could incur inter-region data transfer fees when performing those restores.