From 119192ca75e732d88e3abcaefad535864951a311 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Tue, 17 Mar 2026 14:35:54 -0700
Subject: [PATCH] Match Go VolumeCopy: reject when no suitable disk location
 exists

Go returns ErrVolumeNoSpaceLeft when no location matches the disk type
and has sufficient space. Rust had an unsafe fallback that silently
picked the first location regardless of type or available space.
---
 seaweed-volume/src/server/grpc_server.rs | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/seaweed-volume/src/server/grpc_server.rs b/seaweed-volume/src/server/grpc_server.rs
index e400baaaa..edfc75d07 100644
--- a/seaweed-volume/src/server/grpc_server.rs
+++ b/seaweed-volume/src/server/grpc_server.rs
@@ -944,11 +944,6 @@ impl VolumeServer for VolumeGrpcService {
                     }
                 }
             }
-            // Fallback: use first location if no disk type match
-            if found.is_none() && !store.locations.is_empty() {
-                let loc = &store.locations[0];
-                found = Some((loc.directory.clone(), loc.idx_directory.clone()));
-            }
             found.ok_or_else(|| Status::internal(format!("no space left {}", disk_type)))?
         };