I've been using this book as a general guide for several years now. It was a book I watched work it's way through the O'Reilly system from first announcement to general release. I bought it when it first came out. I have not been disappointed in it.
Many people think of computer system backups as a dry old musty topic of interest to nobody in particular. But 9/11 showed how important good disaster recovery planning and procedures could be to a business.
Some of the specifics are now a little out of date, but not by leaps and bounds. It is still very good for its core reason for being - Backups. It is very much less out of date than other computer books on the market today.
I have been dealing with large-scale computer system backups and disaster recovery for large employers for years... and I still consult this book regularly to make sure have not missed anything important. It covers all the topics you need.