Six problems that plague the simplified deployment of Data for Small and Medium-sized Enterprises

Deduplication and data compression can greatly reduce data storage performance requirements and reduce data backup by more than 90%. Reducing backup data can reduce hardware and management costs. However, small and medium-sized enterprises and departments often cannot apply these technologies. There are some reasons, including the lack of practical experience.

The following are some common data backup problems:

1. Should we use deduplication, data compression, or both?

. Deduplication and data compression are relatively independent and complementary technologies. They can be used together to reduce data backup by more than 90%. If used separately, although either of the two technologies can effectively reduce disk backup, the overall data reduction strategy includes deduplication and data compression. If you use data compression technology to reduce the proportion of backup data to 2: 1, and use deduplication to reduce the proportion of backup data to 10: 1, the total proportion of backup data can be reduced to 20: 1.

2. Is hardware-based data compressed or software-based data compressed?

We need to consider two aspects here, especially the data compression processing capability. Therefore, when deploying a hardware-based solution, we need to consider its impact on backup performance. Hardware-based Data Compression devices are also compatible with pre-configured applications, without the need to purchase, install, configure and manage those fragmented products. When looking for data backup to reduce the device, do not consider a separate backup server, because it will increase the backup complexity and increase the overall cost of the backup infrastructure. A "full-featured" backup data restoration device requires a variety of solutions.

3. The tape backup system includes data compression. Why cannot we use hardware compression in the disk backup system?

Disk compression is traditionally file-based. Hardware compression is performed on data blocks rather than files. It was not until recently that the block-based Data Compression problem on the hard disk was overcome. Currently, hardware-based disk compression is introduced for data compression and backup devices.

4. How about remote server backup and remote backup for Disaster Backup?

Backup Data Compression must solve the backup servers of the headquarters and remote studios, and send the backup data to the DR site for disaster recovery. Backup should be single, continuous, centralized, and easy to manage.

5. Can a single data reduction device be used for primary data backup?

Generally, deduplication and compression of primary data are used in different ways. The primary storage deduplication on the data block is applied to the disk. Windows and Linux file systems start with data blocks. This means that deduplication in the primary storage will always identify duplicate data blocks in the file. In addition, duplicate data in or across databases can be detected. On the other hand, when the application creates a file, the file ".tar.zip" is equivalent, and the data block is not always arranged in the same way. Therefore, it is much harder to delete backup duplicate data applications than primary data deduplication.

6. Why is the price of Data Compression devices so high?

It is wrong to compare the price only. The cost per TB of disk backup should be the evaluation standard. What is supported by parallel backup? What are the impacts on backup performance? If you are not clear about these issues, you will spend more money to purchase entry-level products.