Re: [pve-devel] [RFC manager 0/4] Ceph add basic erasure code pool mgmt support

[Aaron Lauterer <a.lauterer@proxmox.com>]

One thing I forgot to mention is that due to quite a few $rados->mon_commands that are introduced here, there will be rebases needed when we apply the changes to librados2-perl. Similar to this patch [0] of that other series.

[0] https://lists.proxmox.com/pipermail/pve-devel/2022-March/052290.html

On 4/8/22 12:14, Aaron Lauterer wrote:
> This RFC series adds basic support to create erasure coded (EC) pools
> with the PVE tooling.
> 
> We need to first manage EC profiles as they are the important part when
> someone wants to use EC pools. They define how the data is split up and
> how much coding/parity one wants.
> 
> The actual creation of the EC pools follows the same approach we use for
> cephfs pools. One metadata and one EC coded data pool. More details in
> the actual patches.
> 
> The first patch is one that we should have added when we added basic
> support for ec pools [0].
> 
> I sent it as RFC mainly to get some feedback, especially regarding the
> CLI interface for the profile management and if the approach on how to
> create EC pools, by adding an optional 'ecprofile' parameter to
> pool create, is one we are okay with from an interface POV.
> 
> More details can be found in the individual patches.
> 
> [0] https://git.proxmox.com/?p=pve-storage.git;a=commit;h=ef2afce74aba01f2ab698a5477f5e396fa4d3725
> 
> Aaron Lauterer (4):
>    api: ceph: $get_storages check if data-pool too
>    pveceph: add management for erasure code rules
>    ceph tools: add check if erasure code profile exists
>    ceph pools: allow to create erasure code pools
> 
>   PVE/API2/Ceph.pm            |   6 +
>   PVE/API2/Ceph/ECProfiles.pm | 249 ++++++++++++++++++++++++++++++++++++
>   PVE/API2/Ceph/Makefile      |   1 +
>   PVE/API2/Ceph/Pools.pm      |  55 +++++++-
>   PVE/CLI/pveceph.pm          |  12 ++
>   PVE/Ceph/Tools.pm           |  21 ++-
>   6 files changed, 335 insertions(+), 9 deletions(-)
>   create mode 100644 PVE/API2/Ceph/ECProfiles.pm
>