I would prefer that this is something more generic, to possibly support other backends one day, like ceph-volume. Creating one tool per backend seems silly.
Also, ceph-lvm seems to imply that ceph itself has something to do with lvm, which it really doesn’t. This is simply to deal with the underlying disk. If there’s resistance to something more generic like ceph-volume, then it should at least be called something like ceph-disk-lvm.
2 cents from one of the LVM for Ceph users,
Warren Wang
Walmart ✻
On 6/16/17, 10:25 AM, "ceph-users on behalf of Alfredo Deza" <ceph-users-bounces@xxxxxxxxxxxxxx on behalf of adeza@xxxxxxxxxx> wrote:
Hello,
At the last CDM [0] we talked about `ceph-lvm` and the ability to
deploy OSDs from logical volumes. We have now an initial draft for the
documentation [1] and would like some feedback.
The important features for this new tool are:
* parting ways with udev (new approach will rely on LVM functionality
for discovery)
* compatibility/migration for existing LVM volumes deployed as directories
* dmcache support
By documenting the API and workflows first we are making sure that
those look fine before starting on actual development.
It would be great to get some feedback, specially if you are currently
using LVM with ceph (or planning to!).
Please note that the documentation is not complete and is missing
content on some parts.
[0] http://tracker.ceph.com/projects/ceph/wiki/CDM_06-JUN-2017
[1] http://docs.ceph.com/ceph-lvm/
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