Here is my configuration:
$ lsblk
.......................
└─sdb2 sdb2 8:18 bcache
└─bcache0 bcache0 254:0 crypto_LUKS
└─sdd4_crypt dm-7 253:7 btrfs poppy-encrypt
...................................
└─sdd4 sdd4 8:52 bcache
└─bcache0 bcache0 254:0 crypto_LUKS
└─sdd4_crypt dm-7 253:7 btrfs poppy-encrypt
......................................................................
sdb2/sdd4 are attached caching/backing device.
sdb2 is a empty partition on a SSD dedicated to bcache. No data on it.
sdd4 is a encrypted/btrfs on a HD and will host, among other things, my DB.
I didn't make any filesystem on sdd2. First question: shall I ? If
yes, what will be the more appropriate for speed : ext2 or Btrfs?
Thank you.
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