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storageopenstacklvm

How to extend a logical volume which has snapshot on it

I have a lv(logical volume) which is a original source of another snapshot. And I wanna extend the lv with command 'lvextend' and the first try failed with error:

Snapshot origin volumes can be resized only while inactive

So I tried the second way with a command sequence.

1. unmount [mount_path]
2. deactive the device with command(lvchange -an [device_path])
3. lvextend [device_path]

then I get the error:

LV [device_namr] has open snapshot [snapshot_name]: not deactivating

What should I do, how can I extend a lv with snapshot exists?

Solution

  • You must deactivate your snapshot too, with command:

    lvchange -an [snapshot_path]

    and when both of volume and snapshot are inactive, you can extend your volume.