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To test disk devices containing data you want to preserve, you can use the -r option with the -m, -f, or -g options, which are described in the following sections. For example, to use the -m option and the -r option, you can run the utility by entering:
# /opt/VRTSvcs/vxfen/bin/vxfentsthdw -rm
When invoked with the -r option, the utility does not use tests that write to the disks. Therefore, it does not test the disks for all of the usual conditions of use.