The metaphor of cloud storage may feel a bit exaggerated, but we can still feel the vague concepts related to cloud, and the future of this technology is full of unknowns, and this is the same for private cloud storage as we know it. Although various publicized private cloud storage in the market claim that they have benefited from the addition of a firewall to the original public cloud, there are signs that the reputation of private cloud storage has gradually fallen below public storage.
Speaking of public storage, it is difficult not to connect with selective outsourcing in the post-network company era, but despite this, it still has simple and inherent usability. The name of public storage also sounds like it lacks proprietary, much like putting things directly there without being managed in an orderly manner. And to be honest, the word "public" still doesn't sound as cool as "cloud".
The name change will not change its essence, it is still a storage architecture technology that can provide better services. What we have to admit is that no matter which brand of product is selected, enterprises will benefit from the private cloud architecture they choose. In a sense, the emergence of the private cloud market is the result of the development of public clouds. One thing we have to admit is that, whether it is a public cloud or a private cloud, storage is an irreplaceable part of cloud solutions. Especially for server virtualization, cloud computing can be applied. Nevertheless, to ensure the successful deployment of the cloud, a mature storage strategy is very necessary.
Compared with the advantages of public cloud storage, we found that private cloud storage has the following characteristics:
Availability. When the user needs it, the space needs to be allocated in time, and it needs to be recovered in time after use.
service quality. Need to have a detailed service level description and strictly refer to the implementation. Measurable standards can be used to define what kind of response time, recovery time, and activity time support users can get.
The cost is fixed. In cloud environments, charges are usually based on storage per unit. The user only needs to pay for the part actually used according to the service level agreement, not according to the allocated space or a certain standard.
When looking at the cloud storage price list, you will often see some attractive discounts, but who will really benefit from it? There is a clear difference between public cloud and private cloud. In the public cloud architecture, users and the organization that signed the agreement will benefit. For users, they will get support for all applications. For organizations, the cost is relatively fixed, which may be cheaper than self-maintaining a system. The IT department needs to tell the cloud service provider the precise definition of platform as a service. Although the cost of the business department will be relatively fixed, the public cloud also has the advantage of "buy as much as you use" refunds and has specific service level agreements. Unfortunately, these standards are not suitable for IT departments. Users need to get enough storage space and start to manage it, will monitor the system and start detailed cost accounting.
In addition, it should be noted that these benefits do not mention "using the most advanced storage array", "the fastest disk" or "10Gb Ethernet." In fact, there are no relevant technical guidelines. The main focus of public cloud is better operation: service level, cost control, and rapid response capabilities. However, storage vendors tend not to focus on operational issues, they just sell hardware and software. So for private clouds, what will these vendors sell? What is certain is that it is definitely not just a hardware upgrade and a conjecture. Fortunately, this was confirmed. As long as the private cloud can be applied to the correct environment and configuration, it is definitely not just a hardware concept.
When talking about cloud architecture, some vendors emphasize the need for scalability and flexibility. What is certain is that the relatively low-cost cloud architecture model will be more attractive. But almost all manufacturers will claim that they have this or that attribute, so these definitions are not so useful. In addition, cloud deployment does not only refer to the architecture on the hardware, because at the end of the cloud development, the significance of the process will be greater than the product itself.
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