In the 5g era, more and more enterprises begin to choose to store data on the cloud. It is necessary for IT departments to understand the advantages of cloud storage. Today, let’s introduce the five advantages of cloud storage and how they help users solve some common it problems.
1. Scalability, traditional storage systems and scale out additional nodes have large limitations on capacity, performance, and files and objects (such as in NAS). Therefore, more storage systems will be deployed according to the size of data, requiring more backup, data archiving, management tasks and management personnel.
Cloud storage providers can alleviate such problems by adding new nodes to the cloud, providing more capacity and objects, and enhancing performance. Cloud storage does not need to manage a single or aggregated namespace for all data. Instead, it uses a looser union of independent data elements. This eliminates the need for cache consistency of the whole system, that is, each node needs to know the objects owned by other nodes and the ownership of a piece of data by the physical node.
Therefore, cloud storage is based on the rules about the data itself, not the data scale of the system. As long as the data meets the specified policy, that is, how many copies it needs to have and where it can be stored, the system can grow and expand almost indefinitely.
2. Flexibility and limited metadata are the disadvantages of most storage systems. It is true that NAS systems have more metadata than San or Das systems, but it is still limited. The lack of metadata limits which parts can be automated.
At this level, the advantages of cloud computing and cloud storage have played a role again. Cloud storage can accommodate more diverse data and provide excellent custom control for data of specific business and system functions. Conversely, data can be manipulated according to policy triggers and extended according to rules. These rules automate many traditional manual intensive tasks such as tiered storage, security, migration, redundancy, and deletion.
The multi cloud approach adds another layer of flexibility to enterprise cloud strategy. In particular, it eliminates the threat of vendor lock-in and provides greater portability in a variety of environments. A multi cloud strategy enables faster and easier migration of applications and data from local storage to the cloud and from one cloud to another.
3. Multi tenancy, the traditional storage system and its horizontal expansion, and the new nodes have never been designed for multi tenancy. Security, billing and refunds are fixed, not built-in. A significant advantage of cloud storage is that custom metadata provides an unprecedented security layer. Each object or file acts as an independent data instance, providing a wide range of controlled and restricted access policies for different parties. Provides built-in encryption both dynamically and statically.
Some cloud storage services also include erasure code that adds another layer of security. Even if someone can crack the encryption, they must intercept at least 12 data streams, or even up to 64 data streams, which is very impossible to read data.
4. There is no destructive data migration. Because cloud storage is based on object storage, one of its advantages is that it can eliminate the destructive data migration caused by the technology update cycle and make technology update a simple online task. This is done by adding new nodes (such as SSDs) to the system. Discover and use these new nodes immediately, and exit the old nodes when needed. Data on retired nodes is simply recreated elsewhere. This removes downtime and server repair during the upgrade process.
Cloud storage completely changes the extremely high cost of disaster recovery (DR) because no additional data center is required. Data and applications can be automatically copied from private cloud to public cloud or multiple public clouds. Ideally, key data and resources can be placed on one cloud and copied to the clouds of other providers with different geographical locations. If a cloud service provider encounters a global failure, other clouds can access it. This can not only solve the cost problem, but also improve reliability and security.
Cloud and multi cloud storage have many advantages, but there are also challenges. For example, cloud storage can quickly become complex, especially when multiple clouds are involved; Data governance and compliance issues can be tricky; Determining and forecasting costs is not always easy; Security still requires additional attention. But in general, the advantages of cloud storage are still more effective than traditional storage in today’s storage environment.