Translations:Btrfs/22/en

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Extend a volume

This is very easy because btrfs incorporates a volume manager. You only have to look for a free device. You may use a partition like /dev/sdz4 or you may use a raw device like /dev/sdz. Then add this device to your existing volume with btrfs device add. You may need to do a balance afterwards to redistribute some chunks.

root # btrfs device add [/dev/sdz4] / COPY TO CLIPBOARD


Dont´t format the partition!
To add a device it should have NO filesystem on it. The btrfs volume manager will include the free storage of the device into the existing filesystem.