The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

disk controller

In the multipathing subsystem of VxVM, the controller (host bus adapter or HBA) or disk array connected to the host, which the operating system represents as the parent node of a disk.

For example, if a disk is represented by the device name <code>/dev/sbus@1f,0/QLGC,isp@2,10000/sd@8,0:c</code> then the path component <code>QLGC,isp@2,10000</code> represents the disk controller that is connected to the host for disk <code>sd@8,0:c</code>.