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If you have a sw-raid1 and you write data to one of the members directly, you will have a corrupted raid immediately. DO NOT write data to a sdaX or sdbX if they are part of a mdX. If you write to mdX, you will have the data copied to both drives, if you read from mdX, you will have the data read from one of the drives..


According to man ldmtool, ldmtool create ... will create device-mapper device nodes which you can use (mount, unmount, etc) just like any other device node. create {volume { disk group GUID } { volume name } | all} Create a device-mapper device for either the specified volume or all volumes in all detected disk groups. Returns a list of the ...

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