ccd(4) on FreeBSD
The text 2d3a4d54c9c9, as FreeBSD 4.2-RELEASE, FreeBSD 4.1.1-RELEASE, FreeBSD 4.1-RELEASE, FreeBSD 4.0-RELEASE shipped it.
Concatenated Disk Driver
The text 2d3a4d54c9c9, as FreeBSD 4.2-RELEASE, FreeBSD 4.1.1-RELEASE, FreeBSD 4.1-RELEASE, FreeBSD 4.0-RELEASE shipped it.
Concatenated Disk Driver