Can I get SSD rw performance while keeing data security if I combine SSD & HDD in btrfs RAID1

I have 2 storage devices; classical slow HDD (750GB, /dev/sda) and faster SSD (128GB, /dev/sdb). Currently I have installed Ubuntu & Mint on same btrfs partition on SSD (/dev/sdb5). My btrfs pool consists of /dev/sdb5. What I want to achieve is data replication on HDD while keeping SSD performance: Something like this: For read case it would be ideal for procedure to go like this: * read from SSD * check checksum * if it verifies.. awesome, give me the data * if not, fetch data from HDD and perform error correction through duplicate data I'd manually run (some tool I'm not sure which one... btrfs check --repair perhaps?) every month or so to check HDD checksums and correct them via SSD data against bitrot. For write case: * write to SSD * sync to HDD when write requirements are low, thus not slowing down the system. Is this possible and how would I do it? Bottom line is, I like btrfs and would like it to duplicate data across HDD & SSD drive automatically while keeping SSD excellent performance. Using SSD as write cache is not an option since it's missing data duplication and security.