Hello everyone,
I'm new to ceph but been working with proprietary clustered filesystem for quite some time.
I almost understand how ceph works, but have a couple of questions which have been asked before here, but i didn't understand the answer.
In the closed source world, we use clustered filesystems like Veritas clustered filesystem to mount a shared block device (using San) to more than one compute node concurrently for shared read/write.
What I can't seem to get a solid and clear answer for its this..
How can I use ceph to do the same thing? Can RADOS guarantee coherency and integrity of my data if I use an rbd device with any filesystem on top of it? Or must I still use a cluster aware filesystem such as vxfs or ocfs?
And is CephFS going to some this problem? Or does it not have support for concurrent read/write access among all now mounting it?
And, does iscsi targets over rbd devices behave the same?
Thanks guys did the help..
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