Azure Monitoring - Azure Diagnostics Agent, storage account keeps growing

Hi all,

Some time ago, I configured Azure Monitoring to collect the guest metrics of our Azure VM's. As time passed the storage account configured to store the data of the Azure Diagnostics agent just kept growing and growing. It seems there's not some form of retention setting limiting the amount and time data's being kept.

Can anyone tell me what the default retention limit is for data collected by the Azure Diagnostics agent and/or what I can do to limit the size of the storage account linked to the agent?

Kind regards,

Twan van der Leij