About VMware raw device mapping (RDM)
|Article:HOWTO70902|||||Created: 2012-02-08|||||Updated: 2012-02-08|||||Article URL http://www.symantec.com/docs/HOWTO70902|
VMware raw device mapping mode (RDM) allows a virtual machine to directly access physical disks. With raw device mapping, a VMware virtual machine can use large storage devices such as disk arrays. Access to the data on an RDM disk is faster than to a fully virtualized disk (vmdk file). An RDM disk can be locally attached to the ESX server or configured on a Fibre Channel SAN.
Article URL http://www.symantec.com/docs/HOWTO70902