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Hi,
September 10, 2021 9:36 PM, "ic" <[email protected]> wrote:
> Hey guys,
>
> Is there an easy (if any at all) way to export a ceph volume through NFS?
No, there isn't.
> I’m migrating virtual machines from a non-ceph cluster to a ceph one and for
> many reasons, going
> through a 3rd party external storage is not an option so I’m looking for a
> way to mount the ceph
> from the new cluster on the old one, move the VM disks there and then stop
> them on the old cluster
> and start them on the new one (I’m copying the .conf files by hand).
There are a couple of ways to migrate to RBD-based storage with different
downtime.
1) connect the hypervisor directly to Ceph and move the VM's disk(s),
if the hypervisor supports it
2) create a CephFS and use nfs-ganesha to export the FS,
if not feasable then use a VM as NFS server
3) use qemu-img to convert the VM's disk(s) directly to RBD,
if no direct connection possible, then using wdt, nc, ssh over the network
I hope these give you some idea on how to proceed.
Cheers,
Alwin
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