Carrying over from my Parting Shot entry on the topic one of the most bogus terms in information protection is “Near CDP”. Indeed it’s so moronic, pretty much meaning you have more than one snapshot taken at intervals no matter how long or irregular, that it’s technically indefensible.
Continuous Data Protection provides you an application or crash consistent image at the point in time you specify inside a protection window correct to the state of individual blocks at that point in time. It allows you to roll forward and back through changes exactly as they happened on the volumes being protected.
The bogus Near-CDP on the other hand is like if your Digital Video Recorder only recorded one image frame of a TV show at regular or irregular intervals but never continuously. Those intervals could be one frame a second one frame an hour but never every frame.
Sorry if you wanted to see the sports star score for you team or see who slept with whom this week on your favourite trashy Soap Opera. It had better have happened when there was some recording going on or otherwise you’re out of luck.
It Nearly-Recorded the entire show but it never will record an entire show.
If your Digital Video Recorder started acting like technologies with the Near-CDP sticker on them you’d throw it out immediately. There aren’t any Near-CDP technologies, there are Non-CDP technologies.
Near-CDP is a marketing invention of people who don’t offer Continuous Data Protection but are trying to repackage Non Continuous technologies as “kind of being the same thing”.
The word Continuous matters and you’re either continuous or you’re not.
Near-CDP is not continuous and never will be. It is Non-CDP.
