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Glossary

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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>.