f7888d00ef
Ironic knows how to choose root devices, and when it comes to software raid, it shouldn't realistically be required. This is because multi-device device numbering is unstable across reboots, espescially when someone creates a raid set, re-inspects to force the root_device hint to be set. This is because the introspection ramdisk re-detects the device as opposed to the software raid device management managing the device directly when a deployment is occuring. In reality, ironic's own algorithm of smallest device detection is really ideal for software raid as well. So instead of trying to be smart and helpful, we should let the software do it's own thing, and provide a warning to help the user along. Also adds a few notes around root device selection for the purpose of wider context. Resolves: rhbz#2032243 Change-Id: I4fd1de54d076ceb1100a6a7b2bda1578b039c042
14 lines
701 B
YAML
14 lines
701 B
YAML
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fixes:
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Fixes incorrect handling of root device hints when Software RAID is in
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use with Ironic. Users may re-introspect and an automatic root device hint
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would be added, which is incorrect and can lead to a failed deployment
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due to Software RAID (MD) device names being inconsistent across reboot
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from being configured to utilized. Ironic ultimately understands these
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devices and should choose the correct device by default if present.
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We now log an Warning and do not insert a potentially incorrect root
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device hint. Operators using a complex set of disks may still need to
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explicitly set a root device hint should their operational state require
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it.
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