When a portal fails to create (e.g. IP not on system), its ID is absent
from portal_id_map. Previously this caused every target referencing that
portal to be skipped entirely, which then cascaded to target-extent
failures.
Now each target's groups are filtered individually: groups with unmapped
portal or initiator references are dropped with a warning, and the target
is still created with the remaining valid groups. This keeps the target
and all its extent associations intact while clearly indicating which
groups need manual attention.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
scott
c0619dfb9b