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How 3-2-1 Backup Can Help You Improve Your Backup

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Every admin should have a backup. This principle works for any virtual environment; regardless of hypervisor you run (VMware, Hyper-V.)

These rules includes following guidelines:

3. Make three backups

2. Two in different formats

1. Keep one backup copy offsite

However, as a minimum, 3-2-1 backup regarded as a rule of thumb to follow. One of the very few cases where 3-2-1 is not valid in the minimum is when a business decides that if the primary site is to permanently offline (through tornadoes, fires, natural disasters, or man-made disasters), then the business will no longer continue.

The 3-2-1 rule is the best practice for backup and recovery. This means that when you build a backup and recovery strategy you must:

3. Make three backups

Even trivial events, like a fire alarm, triggered a sprinkler system really can wash away all your data. Countless other incidents could bring the same result - for example, theft, fire, disgruntled employees demanding revenge for imagined slights, or vandalism of mass unrest. Therefore, having a backup is not enough, especially when kept in the same place as the primary data and on the same types of media. Obviously, the more backup copies you have the less chance you have to lose them all at once. Accordingly, a 3-2-1 backup rule states that you need at least three copies of your data, which means that primary and two backups of these data.

2. Two in different formats

You must remember that any storage device will fail sooner or later. Hard drives fail from time to time, whether due to a disability or just wearing out. Two devices of the same type have a much greater risk of failure around the same time of two devices of different types or two different storage media. Accordingly, a backup rule says that if you save your key data on the internal hard drive, store your backup copy in a different way - for example, using an external hard drive, optical disc, digital tape, or cloud. A good alternative is to use Network Attached Storage (NAS), which is a hard disk smart box you can attach directly to your network and use it to store your important data in the format of a tough and overdone. NAS devices act independently from the rest of their infrastructure attached and remain accessible for data retrieval, should your infrastructure down

1. Keep one backup copy offsite

As is clear that local disasters can destroy all copies of the data stored in one place, reserve 3-2-1 backup rule says that storing at least one copy of your data in a remote location, such as offsite or cloud storage. If you want to protect your data from disaster, that may invade large areas, "remote" should mean as far as possible, that is, in another city, state, country, or even continent. While storing a backup copy of your data offsite strengthen security, have another backup copy onsite provides for fast and simple recovery in case of failure.


Edited by selectshop.at
marketing link removed (see edit history)

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