Does buffered data last through an interface server reboot?

Seems to be that the data would be lost from 1:30 to 1:35 unless the cached data was written to the disk during that time based on the flush cycle

Data would be loaded until 1:35 if buffering is working. This is the main functionality of buffering where it will hold the data during PI server unavailability and flush when PI server is available.

Mallesh G​, that was my expectation as well, but when we did this same sequence of events, we found that all data after 1:30 was lost. All indications were that buffering was working properly, but it seems that when the data archive is not available, buffered data (cached snapshot records) are stored in local memory and periodically written to the disk. But if the server running the interface is shut down before the buffered data in local memory is written to the disk, that data will be lost.

In this case, for example, the buffered data from 1:30 to 1:35 was stored in local memory and lost upon server reboot.