About VMware raw device mapping (RDM)

Article:HOWTO70902

Created: 2012-02-08

Updated: 2012-02-08

Article URL http://www.symantec.com/docs/HOWTO70902

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About VMware raw device mapping (RDM)

This topic applies to NetBackup for VMware.

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.

NetBackup supports the disk arrays that are configured on a virtual machine as RDMs.

Note:

NetBackup cannot back up the RDM by means of a VMware backup host.

For notes and restrictions on NetBackup support for VMware RDM, see the following Symantec tech note:

Support for NetBackup 7.x in virtual environments

http://www.symantec.com/docs/TECH127089

See Configurations for backing up RDMs

See About alternate client backup of RDMs

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v21902441_v71073983

Article URL http://www.symantec.com/docs/HOWTO70902

About VMware raw device mapping (RDM)

About VMware raw device mapping (RDM)

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