diff --git a/python/sglang/srt/disaggregation/mooncake/conn.py b/python/sglang/srt/disaggregation/mooncake/conn.py
index 3dd6f05fd..95cfe75f1 100644
--- a/python/sglang/srt/disaggregation/mooncake/conn.py
+++ b/python/sglang/srt/disaggregation/mooncake/conn.py
@@ -43,8 +43,8 @@ logger = logging.getLogger(__name__)
 _CP_SHARED_DEBUG_COUNTS: dict[str, int] = {}
 
 
-def _cp_shared_debug_log(key: str, message: str, *args, limit: int = 64) -> None:
-    if not envs.SGLANG_DEBUG_CP_SHARED_KV.get():
+def _cp_shared_debug_log(key: str, message: str, *args, limit: int = 1_000_000) -> None:
+    if not (envs.SGLANG_DEBUG_CP_SHARED_KV.get() or envs.SGLANG_CP_TRANSFER_LOG.get()):
         return
     count = _CP_SHARED_DEBUG_COUNTS.get(key, 0)
     if count >= limit:
@@ -1241,7 +1241,7 @@ class MooncakeKVManager(CommonKVManager):
                             _np_summary(chunked_dst_kv_indice),
                             kv_chunk.is_last_chunk,
                         )
-                        if envs.SGLANG_DEBUG_CP_SHARED_KV.get():
+                        if envs.SGLANG_DEBUG_CP_SHARED_KV.get() or envs.SGLANG_CP_TRANSFER_LOG.get():
                             _cp_shared_debug_log(
                                 "transfer_worker_kv",
                                 "transfer worker cp_rank=%s room=%s prefill_pages=%s "
@@ -1350,7 +1350,7 @@ class MooncakeKVManager(CommonKVManager):
                                         req.dst_state_indices,
                                         kv_chunk.state_logical_page_positions,
                                     )
-                                if envs.SGLANG_DEBUG_CP_SHARED_KV.get():
+                                if envs.SGLANG_DEBUG_CP_SHARED_KV.get() or envs.SGLANG_CP_TRANSFER_LOG.get():
                                     _cp_shared_debug_log(
                                         "transfer_worker_state",
                                         "transfer worker state cp_rank=%s room=%s prefill_state_pages=%s "
@@ -1731,7 +1731,7 @@ class MooncakeKVSender(CommonKVSender):
                     )
                 )
             index_slice = None
-            if envs.SGLANG_DEBUG_CP_SHARED_KV.get():
+            if envs.SGLANG_DEBUG_CP_SHARED_KV.get() or envs.SGLANG_CP_TRANSFER_LOG.get():
                 _cp_shared_debug_log(
                     "sender_filter",
                     "sender filter cp_rank=%s room=%s page_start=%s orig_kv_pages=%s "
diff --git a/python/sglang/srt/environ.py b/python/sglang/srt/environ.py
index c178e1c57..d0f3c82a1 100644
--- a/python/sglang/srt/environ.py
+++ b/python/sglang/srt/environ.py
@@ -274,6 +274,10 @@ class Envs:
     # CP HiCache round-trip KV-corruption tracing. 0=off, 1=structural lifecycle
     # (rid_map/backup/split/evict/reload), 2=+compose/free/ack timing.
     SGLANG_CP_HICACHE_KV_TRACE = EnvInt(0)
+    # Logging-only: emit the CP shared-KV sender/worker transfer-partition dumps
+    # (main-KV pages/positions vs NSA-state pages/positions) WITHOUT the side effects
+    # of SGLANG_DEBUG_CP_SHARED_KV (which disables tai materialize -> fail-fast).
+    SGLANG_CP_TRANSFER_LOG = EnvBool(False)
     # Dir to torch.save per-stage attention tensors for L1-hit vs L2-reload diff.
     # Empty=off. Only requests whose rid starts with "dump-" are dumped.
     SGLANG_NSA_DUMP_DIR = EnvStr("")