Bug 1317918

I don't think we can merge it in Liberty for real, and Mitaka is very unlikely as well. Also note that it requires wiring RAID in TripleO, which we don't have as of Mitaka.

*** Bug 1281457 has been marked as a duplicate of this bug. ***

This is not in active development (not by Lucas for sure), so I drop it to New, and leave myself assigned.

This is not planned for Pike

Potentially patch will be proposed upstream. When that occurs we will target this for an OSP release.

Any word if this patch has landed upstream and if support may be coming to Ironic and/or Red Hat OpenStack Platform.

Nothing in the near future.

There is some work ongoing to make ironic more friendly to firmware RAID (hybrid case of hardware and software RAID), but no progress as well. Real software RAID is on the radar, but it requires some architectural work first (https://bugzilla.redhat.com/show_bug.cgi?id=1373474).

I'll let Ramon further comment on this.

Hello.

I would like to ask to Triage this bug, as we have customers that are periodically ask about this feature.

Kind Regards, Alex.

Available upstream: https://docs.openstack.org/ironic/latest/admin/raid.html#software-raid

Hi 

Is it possible to get a backport of this upstream feature to OSP 16?

Thank you 

David

The code in fact IS in OSP 16, but not tested or supported and with a few limitations that got addressed later. I'll let Ramon comment more on this.

What is your use case, David? What exactly would you like to be able to?

Updating the title in an attempt to make it clearer that this RFE is **NOT** about hardware-assisted software RAID. The latter is vendor-specific and probably won't be supported by ironic directly, unless somebody from the vendor side puts some effort in it. This RFE is about purely software RAID.

I am able to deploy it on RHOSP16.2.1GA

* Import the node

```
openstack overcloud node import /home/stack/instackenv2.json
```

* Introspect the node.

```
openstack overcloud node introspect --provide 5a6342b6-4386-4633-b558-ba4900789879
```

* Set sw-raid agent on the node.

```
openstack baremetal node set --raid-interface agent  5a6342b6-4386-4633-b558-ba4900789879
```

* move the node into manage, for further configuration.

```
openstack baremetal node manage  5a6342b6-4386-4633-b558-ba4900789879
```

* Set the target configuration [sw raid]

```
openstack baremetal node set   --target-raid-config /home/stack/sw-raid/target.yaml  5a6342b6-4386-4633-b558-ba4900789879
```

* cat  /home/stack/sw-raid/target.yaml

```
{
   "logical_disks": [
     {
       "size_gb": "MAX",
       "raid_level": "1",
       "controller": "software",
       "is_root_volume": true,
       "disk_type": "hdd"
     }
   ]
}
```

* Clean the node before deployment, [During this step the nodes will turn on and will start cleaning o the disk]

```
openstack baremetal node clean  --clean-steps /home/stack/sw-raid/cleanstate.yaml 5a6342b6-4386-4633-b558-ba4900789879
```

* Move node from manage to available. [provide]

```
openstack baremetal node provide 5a6342b6-4386-4633-b558-ba4900789879
```

* Set the flavor as well,

```
openstack flavor set \
--property "capabilities:raid_level"="1"  \
baremetal
```




```
[root@overcloud-swnovacompute-0 ~]# mdadm --detail /dev/md127
/dev/md127:
           Version : 1.2
     Creation Time : Wed Feb  2 09:35:23 2022
        Raid Level : raid1
        Array Size : 62878720 (59.97 GiB 64.39 GB)
     Used Dev Size : 62878720 (59.97 GiB 64.39 GB)
      Raid Devices : 2
     Total Devices : 2
       Persistence : Superblock is persistent

       Update Time : Thu Feb  3 17:03:32 2022
             State : clean
    Active Devices : 2
   Working Devices : 2
    Failed Devices : 0
     Spare Devices : 0

Consistency Policy : resync

              Name : localhost.localdomain:0
              UUID : 078b1d94:543da54c:df879980:a0c81fa8
            Events : 257

    Number   Major   Minor   RaidDevice State
       0     252        1        0      active sync   /dev/vda1
       1     252       17        1      active sync   /dev/vdb1
[root@overcloud-swnovacompute-0 ~]#
```

According to our records, this should be resolved by openstack-ironic-17.0.5-0.20220705231707.dd2bfab.el9ost.  This build is available now.