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Disk storage may increasingly be used for backup purposes, but the value of tape storage is once again being recognized. That is because of the explosive increase in data volumes and the characteristics of magnetic tape media.
Positioning in Data Usage
In the past, the main purpose of data archive was to store data as required by laws and regulations. Nowadays, cheap, long-term tape storage is used to attract new business by keeping and using these data.
Re-evaluation According to Business Continuity Plan (BCP)
To assume, avoid and minimize possible future risks, tape storage, which is optimal for remote storage, is used as a disaster countermeasure for data management.
* BCP: A plan that defines the actions to be taken for business continuity when an unexpected event such as a natural disaster or terrorism attack occurs.
Changes in Data Contents
There is a drastic increase in high value-added unstructured data, such as big data, 4K/8K/3D and other high-resolution video and images, and high performance computing (HPC) applications. Tape storage is used to store large volumes of data that cannot be compressed or deduplicated easily.
Worldwide data volumes are increasing rapidly, by 40% every year. By 2020, the volume may reach 40 ZB. Hence tape storage having the large data capacity would be an ideal data storage method in the coming era.
We need to understand the differences between backup and archive and use them effectively to respond to issues such as increased data volume, digitalized content, regulatory compliance, and data usage within a limited budget.
