erasure coded

  1. V

    Erasure Code and failure-domain=datacenter

    Please help me with some advice. In my test scheme with three data centers, I need to create an Erasure Code pool for cold data. I used the documentation My chosen k=6,m=3 (I also tried from the documentation k=4,m=2) in...
  2. P

    CephFS EC Pool recommendations

    Hi, I have 2 SSD per node. and I have 6 Nodes. which makes its 12 SSD now what will give me a good capacity and resilience against failures. I am confused between choosing - EC21 --- i.e K=2, M=1 - 66% Capacity EC42 --- i.e K=4, M=2 - 66% Capacity EC32 --- i.e K=3, M=2 - 60%...
  3. D

    Ceph - Bluestore - Crash - Compressed Erasure Coded Pool

    We initially tried this with Ceph 12.2.4 and subsequently re-created the problem with 12.2.5. Using 'lz4' compression on a Ceph Luminous erasure coded pool causes OSD processes to crash. Changing the compressor to snappy results in the OSD being stable, when the crashed OSD starts thereafter...


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