bcache-tools 1.0.8-2ubuntu0.18.04.1 (armhf binary) in ubuntu bionic

 Bcache allows the use of SSDs to cache other block devices.
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 Documentation for the run-time interface is included in the kernel tree; in
 Documentation/bcache.txt.
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 This package includes udev rules, initramfs support, and the utilities to
 create a new bcache as well as inspect existing bcache partitions.