Mirrored and concatenated RAID options in Mac OS X <p>Apple's Mac Pro computers have the capacity of holding up to four internal hard drives, and all Mac models support the use of external drives ...

An index that is based on two or more columns (fields) in a database table. For example, a common concatenated index would be LastName+FirstName. THIS DEFINITION IS FOR PERSONAL USE ONLY. All ...

Windows File Explorer may fail to open the concatenated file or, if renamed with a .RAR extension, might display only the second ZIP archive.

And a Concatenated Disk Set is a way of combining the capacities of multiple drives into a single virtual volume. Again, there’s no redundancy so you risk losing data. Now, to the should.