Every modern hard drive has an option to monitor its current status and health via SMART attributes. SMART stands for Self-Monitoring, Analysis, and Reporting Technology. The SMART test can be performed on your HDD to detect any potential problems with the hardware itself. Tests such as these are run using SmartCTL. According to the Linux man page, SmartCTL is a command-line utility designed to perform SMART tasks. Examples of these tasks would be printing error logs or enabling and disabling automatic SMART testing.
RAID (or a Redundant Array of Inexpensive Disks) is a way of storing logical data across a medium which is composed of multiple physical hard disk drives blended into one or more logical units or volumes that is used for data redundancy, performance improvement, and reliability.
Cloud Block Storage provides additional hard drive space for your Private Cloud Hosted Server with just a few clicks. The space is not pre-formatted but rather, it is a raw block device. The simplicity of providing a raw block device on the cloud means that you can mount and format the space on your server however you would like, with whatever filesystem is appropriate for your needs. This does entail a small amount of work getting the space into a usable state which we will address in this article.