Current technology in data deduplication and backup
Sometimes it is not enough to do a
cloud backup and it is necessary to rely on the help of other alternative methods. What is clear is that IT security is essential in companies, hence its positive evolution.
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What is deduplication of backups?
Backup deduplication has several advantages. First, it reduces the space needed for storage. This is because it automatically
detects those repeated data to store them only once. Likewise, it tends to reduce the network load, since the data transferred is less, which means that
There is more bandwidth for other purposes or tasks. In this way, once this system has been enabled, the backup copies are deduplicated and stored in a managed storage location. This IT security process adapts to all those operating systems that are compatible with the
proposed backup solution and operates at several different levels:
- archive
- blocks
- file sublevels
Advantages of deduplicating backups
To summarize, deduplication is advantageous for several reasons:
- reduces storage space
- No need to invest in new software
- reduce network load
Moreover, the operation of this process is not that complicated. Backup data tends to be divided into different blocks, which are directly checked through a special, unique database. This database is dedicated to keeping track of and checking the stored blocks. Only blocks that are unique will be sent to your storage, skipping duplicates. This way, valuable storage space is saved and network traffic is freed up.
How does deduplication work?
When
backup information Following this process, the type of blocks must be taken into account. Fixed-size blocks are inefficient. On the one hand, small block sizes consume too much CPU and RAM, and on the other hand, large block sizes achieve a lower deduplication rate. More advanced backup systems have
variable size blocks. Block sizes are thus adapted to minimize CPU and RAM usage as well as to increase the throughput. Before storing the data block, the storage system is asked if the checksum is already stored. If it is, then only the checksum is sent. Otherwise, the block is sent. As for disk blocks of a non-standard size or encrypted files, these cannot be deduplicated, so the checksums are not calculated and the data is transferred to storage.
Favorable situations
It is always a good idea to make a backup or a
cloud backup. However,
Each company has different needs, making it essential at times to use an appropriate backup strategy. Thus, deduplication is convenient to carry out in different situations. When, for example, a backup copy must be created in a remote location of a multitude of workstations arranged in the main office. Also when there is a large environment equipped with similar machines or when backup copies must be made of various servers with different applications.
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