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Stopping bcache

Before disabling intelligent prefetch, stop the cluster service program.

Stopping the bcache RAM Drive

  1. Unmount the cache drive.
    echo 1 > /sys/block/[bcache]/bcache/detach
  2. Deregister the cache drive.
    echo 1 > /sys/fs/bcache/[uuid]/unregister
  3. Delete the RAM drive.
    modprobe -r brd

    In the previous command, note the following for [bcache] and [uuid]:

    1. [bcache] is subject to the content of the /sys/block/ directory. All [bcache] devices in the directory must be processed in the same way.
    2. Set the [uuid] value in the command based on the content in the /sys/fs/bcache directory. All [uuid] devices in the directory must be processed in the same way.

Stopping the bcache SSD

  1. Unmount the cache drive.
    echo 1 > /sys/block/[bcache]/bcache/detach
  2. Deregister the cache drive.
    echo 1 > /sys/fs/bcache/[uuid]/unregister

    In the previous command, note the following for [bcache] and [uuid]:

    1. [bcache] is subject to the content of the /sys/block/ directory. All [bcache] devices in the directory must be processed in the same way.
    2. Set the [uuid] value in the command based on the content in the /sys/fs/bcache directory. All [uuid] devices in the directory must be processed in the same way.

Unmounting the Data Drive That Needs to Be Formatted as a bcache Drive

  1. Unmount the data drive that needs to be formatted as a bcache drive.
    umount /data/[data]

    Replace the unmount directory [data] with the actual name.

Stopping the bcache Drive

  1. Stop the bcache drive.
    echo 1 > /sys/block/[bcache]/bcache/stop

    [bcache] is subject to the content of the /sys/block/ directory. All [bcache] devices in the directory must be processed in the same way.

Uninstalling the bcache Driver

  1. Uninstall the bcache driver.
    modprobe -r bcache