11 Painfully Obvious Back Up Mistakes to Avoid
It's rule numero uno - the most important, essential, imperative tip. The most necessary, and often most overlooked, step: Back up. If there were a list of PC rules, back up would be numbers one and two, and maybe three as well. It's that vital - or at least, it will be the moment you experience a system crash, or accidentally spill Mountain Dew Code Red all over your hard drive.
While we've covered the topic of back up before (more than once), we thought instead of telling you what to do, perhaps it would be equally as instructive to tell you what not to do. So, if you find yourself doing any of the eleven things listed below, take a pause and remember rule one. You'll thank us the next time you have an unexpected power failure. If there's a back up blunder that we've missed, or a horror story you'd like to share, then add it in the comments.
Confusing synchronization and backups

Using a tool like SyncToy or RoboCopy to replicate files to an alternate location may very well meet your needs for data recovery, but make sure you understand the differences between file synchronization and true backup. Having your files in multiple locations will help you quickly recover from critical hardware failure, but if a file is accidently overwritten or corrupted you may simply end up with multiple copies of bad data. Configuration is a key factor in most file replication tools as it will determine what to do when a potential file conflict occurs.
File replication is great as a first line of defense and can be incredibly easy to use, but it’s not a perfect solution for every scenario. Educate yourself on the pros and cons of synchronization as a backup strategy and make sure it meets your needs before trusting it with your data.
Not backing up your critical data

Which of your data would you miss the most if your computer went up in a spectacular burst of flame? Your backup plan may change drastically depending on how you answer this question. If you use your computer for work then you may need to back up email and documents more frequently. Pictures and videos of your family may be your most important data, in which case a weekly or monthly schedule may be more reasonable due to sheer size of your files and how frequently you add to your media library.
Whatever kind of data is precious to you will likely impact your backup plan significantly. Make sure to prioritize and adjust your backup schedules in a way that makes the most sense based on how critical the data is and how often you can afford to back it up. Most backup software will even allow you to run multiple jobs on disparate schedules if you need the additional flexibility.
Not using the correct storage medium

One of the hardest decisions when planning your backup strategy is how you will store the actual backup data. Optical media like DVD’s can be a cheap option, but are not particularly convenient for storing large amounts of data. Conversely, an external hard drive or NAS box is extremely convenient, but all those moving parts can be susceptible to hardware failure. Flash memory like a thumb drive is extremely convenient and offer increasingly larger storage capacities, but they can be easily lost or stolen.
The best case scenario is probably a combination of multiple media types. A NAS box is extremely handy for storing recent backups or mirroring your critical data. DVD’s are perfect for long-term backups, though you should make sure that your backup software allows for larger backups to be broken into smaller chunks. USB thumb drives are best used for on-the-fly backups of data that you may need to get to in a hurry, or for files that you don’t want lumped in with everything else.
If you have data that needs to be accessible for long periods of time, it may be a good idea to consider updating the type of media you use once in a while. How many of us still have data on 3.5" floppy drives? Keeping your backup media in a central location can serve as a visual reminder to help prevent data loss due to a technological incompatibility.
Not securing your backup files

Do you have any idea how enticing backup files can be to someone looking to steal your information? You have a single file, compressed, with all of your most important data. Throw in a colorful bow and you’ve just gift wrapped the perfect target for an interested party with nefarious intentions.
There are two parts to any computer security problem, and your backups are no exception. The first issue is physical security. If all of your backups are on a bright orange external drive that is clearly labeled “BACKUP” then you might need to re-think your physical security strategy. The second thing to consider is your data itself. Encrypting your backup files can be a quick and easy method of preventing someone from stealing your financial records for the last ten years, just make sure you have the password to decrypt those files should the need ever arise.
There could be any number of reasons why someone would want to steal or destroy your backup files. Remember, just because you’re paranoid doesn’t mean they’re not out to get you (and your data).
Not archiving your backups

Frequent backups are always a good idea, but they can cut down on your backup retention. So what do you do if you are running daily backups, but don’t realize for several weeks that you’ve lost a file? Hopefully you still have an old copy of that backup from last Tuesday to restore from.
Finding a balance between backup frequency and how long you want to retain individual backups can be quite the conundrum. Storing enough copies to provide you with a reasonable amount of time to discover an issue can be the difference in whether or not you can successfully restore a file. Periodically creating permanent backups should be part of your backup strategy, even if it’s done infrequently or on a manual basis. Optical media or backup tapes can be a good medium for permanent storage of backup files, or you can simply copy a single backup to an alternate location to prevent it from being overwritten.