With more Internet-connected devices in use, the amount of data that is generated on a yearly basis is growing exponentially, and by 2020 the data universe is expected to reach 44 zettabytes with growth forecast to continue at 40% year over year. According to analyst firm IDC, however, about 90% of the world’s data is considered to be “cold data,” which is only accessed infrequently. In other words, we only access about 10% of the world’s data on a regular basis.
Given the different access frequencies, hot and cold data obviously have different storage requirements. Because hot data is accessed frequently and possibly by thousands of people at the same time, it needs to be stored in a device that is capable of providing high performance and low latency. However, the cost of high performance devices, such as PCIe NVMe SSDs, is always higher.
A tiered storage architecture offers a cost-efficient solution for today’s enterprise needs. Instead of storing all data in one class of storage, in a tiered architecture, hot data can reside in a high-performance tier to ensure low access latencies, while colder data can be stored in tiers with lower cost per gigabyte.
Read this white paper to learn how enterprises can take full advantage of tiered storage architecture.