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This article is about how to ensure that the data is read when the CVM goes down. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

1. Backup data

If you store very important data information in the cloud, make sure you have a backup locally, because the rule of data storage is "always have more than one backup file". So "backup, backup" is a truth that will never go out of date.

In addition to backing up important files in real time, you need to check these files regularly to make sure that their files are not corrupted or destroyed, and that different backups need to be stored in different locations. Another benefit of this approach is that you can not only ensure that your files are safe and sound in the event of an accident, but also upload files to another server at any time if one cloud server goes down.

In general, backup-- backup-- testing.

two。 Be prepared

You never know when the cloud server you rely on will suddenly go down, whether it's the industry's well-known Bluehost or the Amazon database used by big companies like Instagram. During Hurricane Sandy in the United States, numerous well-known websites were taken offline because their data centers in New York were flooded, and even Amazon's data center in Virginia, which is mainly used to support Amazon Web Services access traffic, was paralyzed.

In 2011, well-known websites such as HootSuite, Foursquare and Reddit were paralyzed by a glitch in the Amazon Web Services data center for nearly 24 hours.

As a result, "precaution" can usually help users reduce their losses in the event of a disaster. Here, we have to mention a small case of Amazon Web Services during the 2011 outage, that is, the well-known photo-sharing site SmugMug, which was not affected by the server outage.

At the time, instead of relying solely on the services provided by Amazon's Virginia data center, the company distributed its data in many different locations (similar to the multi-point backup in the above). The company then explained in detail what it was doing in a statement.

"if the information you store in the cloud is very important, such as banking, government, healthcare, health care, and financial data, you need to deploy that information as widely as possible. This work is very time-consuming and laborious, so it is not realistic for many people. However, for some companies, this is very important. It should be pointed out that such an approach may not really have an opportunity to display its talents, but it is sufficient to prevent it from happening. " The company wrote on its official blog.

3. Beyond the cloud

If the budget allows, consider setting up multiple cloud service providers for yourself. For example, in addition to Amazon Web Services, you can also use Microsoft Azure or Rackspace cloud services at the same time.

Thank you for reading! This is the end of the article on "how to ensure data reading when the cloud server crashes". I hope the above content can be of some help to you, so that you can learn more knowledge. If you think the article is good, you can share it for more people to see!

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