Challenge
Scale-Out Backup Repository's Offload task fails with errors like:
Cause
This error occurs when the drive of the gateway server being used to offload data to object storage has insufficient space.
Solution
The gateway server for an Object Storage Repository is assigned on the Account tab of the Object Storage Repository creation wizard[1]. If a gateway server is not explicitly assigned, Veeam Backup & Replication will assign the role of gateway server to one of the Performance Tier repository servers.
The default cache folder used on the gateway server for Offload tasks:
Windows Gateway: %temp%\VeeamBackupTempAs the service on the gateway runs under the System account, %temp% is C:\Windows\Temp\
Linux Gateway: /root/tmp/VeeamBackupTemp
Hardened Linux Gateway: /home/%user_name%/tmp/Where %user_name% is the account provided as part of the one-time credentials.
The amount of space required is based on the amount of data being offloaded during a given offload session's sub-task—approximately 2GB per 1TB of data actively being offloaded at a given time. If multiple offload sub-tasks occur during a session, only the active sub-tasks will require cache space.
More Information
[1] Account tab for each type of Object Storage Repository:
S3 Compatible
Amazon S3 Storage
Amazon S3 Glacier Storage
AWS Snowball Edge Storage
Google Cloud Object Storage
IBM Cloud Object Storage
Azure Blob Storage
Azure Archive Storage
Azure Data Box Storage
