Backing up data can be a daunting task to undertake especially when large data is involved. It’s more complicated when you have to decide if you are doing a full, incremental or differential backup, what to delete, what to maintain and when a lot of devices are involved. But that shouldn’t worry you, with the following questions, you will find backing up data an easy peasy task.
何时执行备份？
这是指应该执行备份的时间框架、指定期限甚至频率。这个问题的答案很简单：尽可能定期备份数据。手动备份很麻烦，大多数设备和系统都支持自动备份，您只需根据自己的偏好和数据的敏感性，定期安排备份时间。此外，您还应做好紧急备份。
您应该备份什么？
In general, you should backup important data from all your devices. That’s your computer, tablet, smartphone, and other devices that you use on a daily basis. The best thing about most of these devices, such as tablets and smartphones is that they come with proprietary cloud storage and if you don’t have vast amounts of data, you shouldn’t worry about the cost. You just need to enable the automatic backup feature and connect to a secure WIFI connection.
备份存储在哪里？
Backups can be regarded as a safety precaution in case the main system fails/compromised. This means you should not store your backups in your main system. You should store your back up in an isolated location away from your main system. Depending on your backup, you might want to keep some near your proximity. Backups are mainly stored in secondary storage devices, network attached storage (NAS), and lastly on the Cloud.
- 辅助存储--在这个数字化时代，有两种主要的辅助存储方式值得考虑：U 盘和外置硬盘。USB 闪存盘非常便携，可存储大量或少量数据，具体取决于其大小。由于它非常便携，你可能很快就会丢失或放错地方。如果使用次数过多，还可能丢失内存。另一方面，外置硬盘可以是便携式的，也可以是固定的，同样可以存储大量数据，而且不会轻易丢失内存。备份可在这些设备上手动完成。小心不要掉落这些辅助存储设备。
- Network attached storage (NAS) – In a nutshell, this is a specialized computer server or hardware with tons of hard drives which are accessible from a network, hence convenient. With NAS, you can store vast amounts of data, and you can configure automatic backups. NAS has some drawbacks such as it’s expensive, needs to be configured, and it requires a higher level of security.
- Cloud storage – This can be seen as some of NAS, or somebody’s computer that’s is very portable and accessible via the internet. In cloud storage, you need to make sure the cloud provider has implemented proper levels of security and your connection to the cloud is secure.
如何备份？
如果手动操作，这是最困难的部分。但由于大多数备份都是自动进行的，因此只需进行正确的配置，系统就能为您完成所有工作。有了备份软件，一切都不会出错。
Lastly, you should always ensure that your backups are secure regarding storage, transfer, and access. For instance, when accessing your cloud backup/NAS, use a secure tunnel, a VPN connection does the job.
