Comment by dilyevsky

1 hour ago

Slow, buggy and resource hungry. Faster spdk-based engine rewrite has been on the way for like 7 years now

2 comments

dilyevsky

One cool feature of ceph is reed solomon erasure coding, myastor only does replication if storage efficiency is important

4+2 Erasure Coding has only half the storage overhead of 3x replication but the same fault tolerance

Also re spdk

dilyevsky 20 minutes ago

RS and XOR EC are definitely useful features for an object store that's storing from like tens of petabytes to exabytes worth of data but for a remote block device with a typical size up to a couple dozen terabytes I'm not so sure. Thanks for the link I will check it out
Edit: skimmed it, classic AI "analysis" - totally ignores all the crap io_uring went through