I'm using FreeBSD 9 for Postgres and want to know if these actions
are safe for make a backup of the database:
a) call pg_start_backup('b1')
b) take an UFS2 snapshot of data files
c) call pg_stop_backup()
d) change to the snapshot dir and rsync/dd/dump/transfer it to backup
Is it safe to call pg_start_backup('b1',true)?
Thanks in advance