Enumerate physical drives behind RAID via smartctl megaraid passthrough

services/host.py

@@ -3,7 +3,7 @@ import json
 import logging
 
 from services.enclosure import discover_enclosures, list_slots
-from services.smart import get_smart_data
+from services.smart import get_smart_data, scan_megaraid_drives
 from services.zfs import get_zfs_pool_map
 
 logger = logging.getLogger(__name__)
@@ -106,6 +106,31 @@ async def get_host_drives() -> list[dict]:
             "zfs_vdev": zfs_info.get("vdev"),
             "zfs_state": zfs_info.get("state"),
             "health_status": health_status,
+            "physical_drives": [],
         })
 
+    # Discover physical drives behind RAID controllers
+    has_raid = any(r["drive_type"] == "raid" and not r["smart_supported"] for r in results)
+    if has_raid:
+        megaraid_drives = await scan_megaraid_drives()
+        for pd in megaraid_drives:
+            pd_healthy = pd.get("smart_healthy")
+            pd_realloc = pd.get("reallocated_sectors") or 0
+            pd_pending = pd.get("pending_sectors") or 0
+            pd_unc = pd.get("uncorrectable_errors") or 0
+            if pd_healthy is False:
+                pd["health_status"] = "error"
+            elif pd_realloc > 0 or pd_pending > 0 or pd_unc > 0:
+                pd["health_status"] = "warning"
+            else:
+                pd["health_status"] = "healthy"
+            pd["drive_type"] = "physical"
+            pd["physical_drives"] = []
+
+        # Attach to the first RAID host drive
+        for r in results:
+            if r["drive_type"] == "raid" and not r["smart_supported"]:
+                r["physical_drives"] = megaraid_drives
+                break
+
     return results