Differences in Delivery Modes RAM, Input Stream, ADB or Disk
During my tests with the guaranteed messaging, I have observed different "Delivery Mode" values while monitoring queue from CLI such as "RAM", "Input Stream" and "ADB or Disk".
Could someone explain the difference between these delivery modes?
I am wondering even though it is guaranteed messaging why does it deliver the messages from RAM or Input Stream?
If it does, how does it ensure persistence of the message in the spool?
How does this behavior influence Replay capability?