RAID 1 - Disk Mirroring
Disk mirroring protects against disk failure by keeping two copies of data stored on separate disks or arrays. Though simple and easy to implement, installing two sets of disks effectively doubles the investment required for a single, non-redundant drive. If at any time either disk fails, the remaining disk can provide all of the data needed, preventing downtime.
Two copies of the data also ensure that there is no degradation in performance, as accesses are immediately routed to the working disk. In the event of failure, copying from the operational disk to the replacement disk is very fast, which reduces the risk of a second failure.
RAID 1 not only provides protection, it can also improve performance. For example, if multiple requests for the same data are made, demand can be distributed between two disk copies therefore decreasing response time for data access.
Summary: RAID 1 is the most secure of any of the RAID levels and is exceptionally fault-tolerant. Examples of industries that would use this level are those who cannot afford downtime: banks, insurance companies, stock markets, airline systems.
Archiving
Archiving protects you from inadvertently overwritten or deleted data. In this event you simply need to contact DaySite and ask for archived copies of your data, and you are back in business.
DaySite archives your data for 3 days. So even if you overlook a data problem, you can still go back and retrieve data written up to 3 days in the past to reconstruct your pages and databases.
Why does DaySite provide this double redundant back process? Because we know that human error can and does occur, and although your data is Mirrored, you may inadvertently alter or destroy valuable informtion on the Mirrored direves.
Web Servers
