Most of you are dumber than bricks...

I can't believe the collective lack of intelligence on this comment board.

From the top...

"How do you handle offsite storage for disaster recovery?"

-With IP replication like nearly every other DR solution. CDP doesn't not limit your recover options.

"You do still need backups, especially off-server ones"

-Huh? No you don't - CDP is the backup and recover tool and you can use it locally or remotely.

"This will require shit loads of storage"

-Re-read the article - it essentially saves and replicates a single instance of each block and uses MUCH less capacity than tape which typically does full and incremental backups

"tape still has a role for a rotated off-site DR scheme"

Your DR is dependent on tape? How many days untill you are fully restored? -Good luck with that... and keep your resume up to date.

"So what is the difference between this and RAID 1?"

-Umm... For starters, replication and single instance blocks.

"However, if you're also looking at compliance and other "archiving" needs, then you'll need that infinite amount of storage everyone forgets about."

-Archiving is not backup you dolt! If you don't understand the difference, it's time for you to go back to "Storage 101" class.

"So where is the CDP, and how do you recover that if there is a problem?"

-Hopefully your DR scheme has you replicating offsite. In the remote site, you can get near-instananeous restores (try doing that with tape)

"Just changes your backup software supplier from X to FalconStor"

-Yeah... and eliminates annual backup software maintenance while giving you a ZERO backup window and near-instantaneous restores. But go ahead and keep using 30 year-old backup technology.

"Using a disk-image produced by any software regardless how magical is totally useless for DR because it does not know if applications have left the data in a consistent state at that particular moment."

-A good CDP solution is application and database aware - clearly you have no idea what you are talking about.