4 - sudo ceph osd erasure-code-profile set teuthologyprofile crush-failure-domain=osd m=1 k=2
5 - sudo ceph osd pool create datapool 4 4 erasure teuthologyprofile
6 - sudo ceph osd pool set datapool allow_ec_overwrites true
11 bdev_inject_crash_probability: .5
16 rbd default data pool: datapool
17 osd: # force bluestore since it's required for ec overwrites
18 osd objectstore: bluestore
19 bluestore block size: 96636764160
24 enable experimental unrecoverable data corrupting features: "*"
25 osd debug randomize hobject sort order: false
26 # this doesn't work with failures bc the log writes are not atomic across the two backends
27 # bluestore bluefs env mirror: true