feat(ecstore): enforce local disk topology guardrails and expose device ids (#2679)

crates/ecstore/src/disk/local.rs

@@ -176,7 +176,15 @@ impl LocalDisk {
             let root = root_clone.clone();
             Box::pin(async move {
                 match get_disk_info(root.clone()).await {
-                    Ok((info, root)) => {
+                    Ok((info, root_disk)) => {
+                        let physical_device_ids = match rustfs_utils::os::get_physical_device_ids(root.to_string_lossy().as_ref())
+                        {
+                            Ok(ids) => ids,
+                            Err(err) => {
+                                warn!(root = ?root, error = ?err, "failed to resolve physical device ids for disk root");
+                                Vec::new()
+                            }
+                        };
                         let disk_info = DiskInfo {
                             total: info.total,
                             free: info.free,
@@ -186,7 +194,8 @@ impl LocalDisk {
                             major: info.major,
                             minor: info.minor,
                             fs_type: info.fstype,
-                            root_disk: root,
+                            root_disk,
+                            physical_device_ids,
                             id: disk_id,
                             ..Default::default()
                         };

crates/ecstore/src/disk/mod.rs

@@ -596,6 +596,8 @@ pub struct DiskInfo {
     pub scanning: bool,
     pub endpoint: String,
     pub mount_path: String,
+    /// Leaf physical block devices backing this mount path when available.
+    pub physical_device_ids: Vec<String>,
     pub id: Option<Uuid>,
     pub rotational: bool,
     pub metrics: DiskMetrics,