piartool backup query command

When Data Archive first starts and whenever PI Backup Subsystem restarts, the output of a piartool -backup -query command will appear as follows after all of the subsystems have registered for backup:

Backup State
Backup in Progress: FALSE
Backup Start: Never
VSS Supported: TRUE
Subsystems Registered for Backup
Name, Registration Time, Version, Status
pibasess, 28-Jul-10 18:28:34, 3.4.385.59, [0] Success
piaflink, 28-Jul-10 18:28:57, 3.4.385.59, [0] Success
pimsgss, 28-Jul-10 18:29:02, 3.4.385.59, [0] Success
pibatch, 28-Jul-10 18:29:12, 3.4.385.59, [0] Success
piarchss, 28-Jul-10 18:29:27, 3.4.385.59, [0] Success
pisnapss, 28-Jul-10 18:29:45, 3.4.385.59, [0] Success
pilicmgr, 28-Jul-10 18:30:16, 3.4.385.59, [0] Success

From the query command, Last Backup Start will appear as Never when the backup subsystem is restarted. To get accurate backup history information, use the piartool -backup -history command or use the PI SMT Backup tool (Operation > Backups). The pibatch subsystem does not appear in your list of subsystems that are registered for backup if you are not licensed to use the old batch subsystem.

If AVEVA™ PI System™ is started normally, then subsystems should register for backup within about 30 seconds of the PI Backup Subsystem startup time. Normal startup is, for example, starting the PI System with the pisrvstart.bat command file or letting the PI System services automatically start after a reboot. However, if PI Backup Subsystem is shut down and restarted by itself, it may take up to five minutes for the individual subsystems to register for backup.

If a subsystem is stopped normally (for example, without crashing), then the subsystem will unregister for backup.