Q&A: How long can the IBS-M1 gateway store data for?

The IBS-M1 can store up to 30,000 data points. When the stored data exceeds the limit, the historical data will be overwritten.
The storage time depends on its time interval setting.
Example: Assuming a time interval of 1 minute, the number of days of data storage would be around 20 days (30,000/ 24/ 60 ≈ 20.8 days).

Is the storage space shared for all linked T/H sensors?

How can I tell if space runs out?

What happens to the data of the the T/H sensors already forwarded to the cloud?