When using lvextend command error reported: "Cannot vary number of mirrors in LV yet."

Solution Unverified - Updated -

Issue

  • When using lvextend command error reported: "Cannot vary number of mirrors in LV yet."
[root@host]# lvextend -m 1 /dev/vg_data/lv_data  /dev/sdae
Cannot vary number of mirrors in LV yet.
Run `lvextend --help' for more information.

Environment

  • Red Hat Enterprise Linux

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