Den fre 7 sep. 2018 kl 13:44 skrev Maged Mokhtar <mmokhtar@xxxxxxxxxxx>:
Good day Cephers,I want to get some guidance on erasure coding, the docs do state the different plugins and settings but to really understand them all and their use cases is not easy:
-Are the majority of implementations using jerasure and just configuring k and m ?
Probably, yes
-For jerasure: when/if would i need to change stripe_unit/osd_pool_erasure_code_stripe_unit/packetsize/algorithm ? The main usage is rbd with 4M object size, the workload is virtualization with average block size of 64k.
Any help based on people's actual experience will be greatly appreciated..
All the random reads and writes they usually cause will make EC less suitable than replicated pools, even if it is possible.
--
May the most significant bit of your life be positive.
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