I have moved your post from the Articles section to the PostgreSQL forum. Please post your questions to the forum rather than the Articles Section. Also, I have removed your email address since it is against site policy to allow contact and/or personal information.
You can achieve autobackup using mirrorig and RAID (it works with any database) or you can use WAL in postgres.
I think you should read more about WAL and Point in Time Recovery at here
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