Safeguards
Cleaning safeguards
Ironic allows users to list disks which should not be touched during cleaning, choosing root device, etc.
So far, the feature works only for non-RAID scenarios, but support for RAID is planned in the near future.
To use this feature, one must have a way of identifying the disks in question - ideally by WWN.
The identifiers are used as hints in a property of the baremetal node called skip_block_devices.
For each disk (or group of disks) to be untouched by Ironic, one must create a dictionary of hints (same hints as for root device hints), for example:
or for multiple disks
The property skip_block_devices is then a list of these dictionaries and can look, for example, as follows:
The command to set the example property above would be