Hello Cephers,
I've been experimenting with CephFS and RBD for some time now.
From what I have seen so far, RBD outperforms CephFS by far. However, there is a catch!
RBD could be mounted on one client at a time!
Now, assuming that we have multiple clients running some MPI code (and doing some distributed I/O), all these clients need to read/write from the same location and sometimes even the same file.
Is this at all possible by using RBD, and not CephFS?
Thanks,
Hadi
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