Tongue-in-cheek solution: use a ramdisk[1] for dm-writecache in writeback mode[2]? [1]: https://www.kernel.org/doc/Documentation/blockdev/ramdisk.txt https://w

Tongue-in-cheek solution: use a ramdisk[1] for dm-writecache in writeback mode[2]? [1]: https://www.kernel.org/doc/Documentation/blockdev/ramdisk.txt https://www.kernel.org/doc/Documentation/blockdev/ramdisk.tx... [2]: https://blog.delouw.ch/2020/01/29/using-lvm-cache-for-storage-tiering/ https://blog.delouw.ch/2020/01/29/using-lvm-cache-for-storag...