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How can I check the LVM mirroring under Linux? E.g.: are there any mirrors on a given machine & some details about them, etc.

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up vote 3 down vote accepted
lvs | fgrep "mwi"

"m" means: mirrored

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and with this I could be 100% sure that it's not mirrored in any way (on the server)? – LanceBaynes Dec 27 '11 at 7:07

The commands pvdisplay, vgdisplay and lvdisplay will show you the configured physical volumes, volume groups and logical volumes respectively of the LVM subsystem on a machine. mdadm will give you information about the configured raid subsystem.

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