When WebGIS DR writes the backup to my company's on-premise file servers, the writes (512 bytes in length per Process Monitor) take a long time and WebGIS DR would take about 15 hours to write 4 GB, which is unreasonable.
However, when I copy the file from ArcGIS Server's C drive to the file server using Windows Explorer, Windows Explorer writes 1,048,576 bytes at a time and finishes in a snap.
How do I tell WebGIS DR to write more data each time?
Some Statistics About Each WebGIS DR Write to BACKUP_LOCATION (all times are in seconds):
BACKUP_LOCATION: Network file server
25th percentile 1.22E-02
75th percentile 1.26E-02
BACKUP_LOCATION: Local C drive
25th percentile 1.50E-06
75th percentile 2.60E-06
Finally, some statistics about copying the file from the C drive to the file server:
25th percentile 1.71E-01
75th percentile 2.61E-01