diff --git a/docs/architecture/migration-progress.md b/docs/architecture/migration-progress.md
index a9fba588f..6c0ae3c15 100644
--- a/docs/architecture/migration-progress.md
+++ b/docs/architecture/migration-progress.md
@@ -5,17 +5,16 @@ Status values: `[ ]` not started, `[~]` in progress, `[x]` complete, `[!]` block
 ## Current Context
 
 - Issue: [`rustfs/backlog#660`](https://github.com/rustfs/backlog/issues/660)
-- Branch: `overtrue/arch-owner-compat-consumer-batch`
-- Baseline: completed `C-011/C-012/C-013/API-055/API-059/API-079/API-080/API-081/API-082/API-083/API-084/API-085/API-086/API-087/API-088/API-089/API-090/API-091/API-092/API-093/API-094/API-095/API-096/API-097/API-098/API-099/API-100/API-101`.
-- Based on: `origin/main` after API-098/API-099/API-100 merge (#3708).
+- Branch: `overtrue/arch-storage-core-compat-consumer-batch`
+- Baseline: completed `C-011/C-012/C-013/API-055/API-059/API-079/API-080/API-081/API-082/API-083/API-084/API-085/API-086/API-087/API-088/API-089/API-090/API-091/API-092/API-093/API-094/API-095/API-096/API-097/API-098/API-099/API-100/API-101/API-102`.
+- Based on: latest `main` after the API-101 merge.
 - PR type for this branch: `pure-move`
 - Runtime behavior changes: none.
-- Rust code changes: move admin handler/service/router, app usecase/context,
-  and storage RPC/S3 API ECStore compatibility consumers behind owner-local
-  compatibility boundaries.
-- CI/script changes: guard against restoring direct owner compatibility
-  consumers outside local compatibility boundary modules.
-- Docs changes: record the API-101 owner compatibility consumer cleanup.
+- Rust code changes: move storage core ECStore compatibility consumers behind
+  the `core_storage_compat` boundary.
+- CI/script changes: extend owner compatibility consumer guard coverage across
+  `rustfs/src/storage`.
+- Docs changes: record the API-102 storage core compatibility consumer cleanup.
 
 ## Phase 0 Tasks
 
@@ -449,6 +448,20 @@ Status values: `[ ]` not started, `[~]` in progress, `[x]` complete, `[!]` block
   - Verification: RustFS test-target compile coverage, owner compatibility
     consumer residual scan, migration and layer guards, formatting, diff
     hygiene, Rust risk scan, pre-commit quality gate, and three-expert review.
+- [x] `API-102` Localize storage core compatibility consumers.
+  - Completed slice: route storage access, ECFS, ECFS extension, head-prefix,
+    options, SSE, storage module aliases, and storage tests through
+    `core_storage_compat` instead of the storage owner `storage_compat.rs`
+    facade.
+  - Acceptance: no non-compat RustFS storage source imports
+    `crate::storage::storage_compat` directly; migration rules reject
+    regressions across `rustfs/src/storage`.
+  - Must preserve: bucket access validation, ECFS object operations, SSE
+    encryption/decryption setup, storage option mapping, storage object aliases,
+    and storage compatibility tests.
+  - Verification: RustFS test-target compile coverage, storage compatibility
+    consumer residual scan, migration and layer guards, formatting, diff
+    hygiene, Rust risk scan, pre-commit quality gate, and three-expert review.
 - [x] `G-012` Inventory placement and repair invariants.
   - Acceptance:
     [`placement-repair-invariants.md`](placement-repair-invariants.md) records
@@ -3490,6 +3503,18 @@ Status values: `[ ]` not started, `[~]` in progress, `[x]` complete, `[!]` block
 
 Passed before push:
 
+- Issue #660 API-102 current slice:
+  - `cargo check -p rustfs --tests`: passed.
+  - `cargo fmt --all`: passed.
+  - `cargo fmt --all --check`: passed.
+  - `git diff --check`: passed.
+  - `bash -n scripts/check_architecture_migration_rules.sh`: passed.
+  - `./scripts/check_architecture_migration_rules.sh`: passed.
+  - `./scripts/check_layer_dependencies.sh`: passed.
+  - Storage compatibility consumer residual scan: passed.
+  - Rust risk scan on changed Rust files and guard script: passed.
+  - `make pre-commit`: passed.
+
 - Issue #660 API-101 current slice:
   - `cargo check -p rustfs --tests`: passed.
   - `cargo fmt --all`: passed.
diff --git a/rustfs/src/storage/access.rs b/rustfs/src/storage/access.rs
index a4e4a2c9e..e6c5f247b 100644
--- a/rustfs/src/storage/access.rs
+++ b/rustfs/src/storage/access.rs
@@ -17,12 +17,12 @@ use crate::auth::{check_key_valid, get_condition_values_with_query_and_client_in
 use crate::error::ApiError;
 use crate::license::license_check;
 use crate::server::RemoteAddr;
-use crate::storage::request_context::RequestContext;
-use crate::storage::storage_compat::ECStore;
-use crate::storage::storage_compat::resolve_object_store_handle;
-use crate::storage::storage_compat::{
+use crate::storage::core_storage_compat::ECStore;
+use crate::storage::core_storage_compat::resolve_object_store_handle;
+use crate::storage::core_storage_compat::{
     PolicySys, StorageError, get_bucket_metadata, get_bucket_policy_raw, get_public_access_block_config, is_err_bucket_not_found,
 };
+use crate::storage::request_context::RequestContext;
 use metrics::counter;
 use rustfs_iam::error::Error as IamError;
 use rustfs_policy::policy::action::{Action, AdminAction, S3Action};
@@ -930,7 +930,7 @@ impl S3Access for FS {
         let req_info = ReqInfo {
             cred,
             is_owner,
-            region: crate::storage::storage_compat::get_global_region(),
+            region: crate::storage::core_storage_compat::get_global_region(),
             request_context,
             ..Default::default()
         };
diff --git a/rustfs/src/storage/core_storage_compat.rs b/rustfs/src/storage/core_storage_compat.rs
new file mode 100644
index 000000000..f3d75945f
--- /dev/null
+++ b/rustfs/src/storage/core_storage_compat.rs
@@ -0,0 +1,15 @@
+// Copyright 2024 RustFS Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub(crate) use crate::storage::storage_compat::*;
diff --git a/rustfs/src/storage/ecfs.rs b/rustfs/src/storage/ecfs.rs
index c92fe19ee..b68432b87 100644
--- a/rustfs/src/storage/ecfs.rs
+++ b/rustfs/src/storage/ecfs.rs
@@ -18,10 +18,7 @@ use crate::app::multipart_usecase::DefaultMultipartUsecase;
 use crate::app::object_usecase::DefaultObjectUsecase;
 use crate::error::ApiError;
 use crate::storage::access::has_bypass_governance_header;
-use crate::storage::helper::OperationHelper;
-use crate::storage::options::get_opts;
-use crate::storage::s3_api::acl;
-use crate::storage::storage_compat::{
+use crate::storage::core_storage_compat::{
     BUCKET_ACCELERATE_CONFIG, BUCKET_LOGGING_CONFIG, BUCKET_REQUEST_PAYMENT_CONFIG, BUCKET_VERSIONING_CONFIG,
     BUCKET_WEBSITE_CONFIG, BucketVersioningSys, OBJECT_LOCK_CONFIG, StorageError, check_retention_for_modification, decode_tags,
     decode_tags_to_map, delete_bucket_metadata_config, encode_tags, get_bucket_accelerate_config, get_bucket_logging_config,
@@ -29,7 +26,10 @@ use crate::storage::storage_compat::{
     is_err_bucket_not_found, is_err_object_not_found, is_err_version_not_found, record_replication_proxy, serialize,
     update_bucket_metadata_config,
 };
-use crate::storage::storage_compat::{StorageReplicationConfigExt as _, StorageVersioningConfigExt as _};
+use crate::storage::core_storage_compat::{StorageReplicationConfigExt as _, StorageVersioningConfigExt as _};
+use crate::storage::helper::OperationHelper;
+use crate::storage::options::get_opts;
+use crate::storage::s3_api::acl;
 use crate::storage::{parse_object_lock_legal_hold, parse_object_lock_retention, validate_bucket_object_lock_enabled};
 use crate::table_catalog;
 use http::StatusCode;
diff --git a/rustfs/src/storage/ecfs_extend.rs b/rustfs/src/storage/ecfs_extend.rs
index 2dff27e63..f570850bf 100644
--- a/rustfs/src/storage/ecfs_extend.rs
+++ b/rustfs/src/storage/ecfs_extend.rs
@@ -15,12 +15,12 @@
 use crate::config::{RustFSBufferConfig, WorkloadProfile, get_global_buffer_config, is_buffer_profile_enabled};
 use crate::error::ApiError;
 use crate::server::cors;
-use crate::storage::ecfs::ListObjectUnorderedQuery;
-use crate::storage::storage_compat::StorageReplicationConfigExt as _;
-use crate::storage::storage_compat::{
+use crate::storage::core_storage_compat::StorageReplicationConfigExt as _;
+use crate::storage::core_storage_compat::{
     StorageError, add_object_lock_years, get_bucket_cors_config, get_bucket_object_lock_config, get_bucket_replication_config,
     resolve_object_store_handle,
 };
+use crate::storage::ecfs::ListObjectUnorderedQuery;
 use http::header::{IF_MATCH, IF_MODIFIED_SINCE, IF_NONE_MATCH, IF_UNMODIFIED_SINCE};
 use http::{HeaderMap, HeaderValue, StatusCode};
 use metrics::counter;
@@ -738,7 +738,7 @@ pub(crate) async fn has_replication_rules(bucket: &str, objects: &[ObjectToDelet
 }
 
 /// Helper function to get store and validate bucket exists
-pub(crate) async fn get_validated_store(bucket: &str) -> S3Result<Arc<crate::storage::storage_compat::ECStore>> {
+pub(crate) async fn get_validated_store(bucket: &str) -> S3Result<Arc<crate::storage::core_storage_compat::ECStore>> {
     let Some(store) = resolve_object_store_handle() else {
         return Err(S3Error::with_message(S3ErrorCode::InternalError, "Not init".to_string()));
     };
diff --git a/rustfs/src/storage/ecfs_test.rs b/rustfs/src/storage/ecfs_test.rs
index 79c7f8f7d..e33d19d5c 100644
--- a/rustfs/src/storage/ecfs_test.rs
+++ b/rustfs/src/storage/ecfs_test.rs
@@ -16,11 +16,11 @@
 mod tests {
     use crate::config::WorkloadProfile;
     use crate::server::cors;
-    use crate::storage::ecfs::{FS, validate_object_lock_configuration_input};
-    use crate::storage::s3_api::common::{rustfs_initiator, rustfs_owner};
-    use crate::storage::storage_compat::{
+    use crate::storage::core_storage_compat::{
         BucketMetadata, DEFAULT_READ_BUFFER_SIZE, get_global_bucket_metadata_sys, set_bucket_metadata,
     };
+    use crate::storage::ecfs::{FS, validate_object_lock_configuration_input};
+    use crate::storage::s3_api::common::{rustfs_initiator, rustfs_owner};
     use crate::storage::{
         StorageObjectInfo as ObjectInfo, apply_cors_headers, apply_default_lock_retention_metadata, check_preconditions,
         get_adaptive_buffer_size_with_profile, get_buffer_size_opt_in, is_etag_equal, matches_origin_pattern, parse_etag,
@@ -941,8 +941,8 @@ mod tests {
 
     #[tokio::test]
     async fn test_validate_bucket_object_lock_enabled() {
-        use crate::storage::storage_compat::bucket_metadata_sys_initialized;
-        use crate::storage::storage_compat::set_bucket_metadata;
+        use crate::storage::core_storage_compat::bucket_metadata_sys_initialized;
+        use crate::storage::core_storage_compat::set_bucket_metadata;
         use s3s::dto::{ObjectLockConfiguration, ObjectLockEnabled};
         use time::OffsetDateTime;
 
@@ -1781,7 +1781,7 @@ mod tests {
     /// with a single-element vec value, matching the format expected by policy evaluation.
     #[test]
     fn test_object_tag_condition_key_format() {
-        use crate::storage::storage_compat::decode_tags_to_map;
+        use crate::storage::core_storage_compat::decode_tags_to_map;
         use std::collections::HashMap;
 
         let tags_str = "security=public&project=webapp&env=prod";
diff --git a/rustfs/src/storage/head_prefix.rs b/rustfs/src/storage/head_prefix.rs
index 1e93de115..ffd717f5c 100644
--- a/rustfs/src/storage/head_prefix.rs
+++ b/rustfs/src/storage/head_prefix.rs
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use crate::storage::storage_compat::ECStore;
+use crate::storage::core_storage_compat::ECStore;
 use rustfs_storage_api::ListOperations as _;
 use std::sync::Arc;
 
diff --git a/rustfs/src/storage/mod.rs b/rustfs/src/storage/mod.rs
index 62de03fae..bff384c3f 100644
--- a/rustfs/src/storage/mod.rs
+++ b/rustfs/src/storage/mod.rs
@@ -15,6 +15,7 @@
 pub mod access;
 pub mod backpressure;
 pub mod concurrency;
+pub(crate) mod core_storage_compat;
 pub mod deadlock_detector;
 pub mod ecfs;
 pub(crate) mod helper;
@@ -29,11 +30,11 @@ pub mod timeout_wrapper;
 pub mod tonic_service;
 
 pub(crate) type StorageDeletedObject = rustfs_storage_api::DeletedObject;
-pub(crate) type StorageGetObjectReader = crate::storage::storage_compat::GetObjectReader;
-pub(crate) type StorageObjectInfo = crate::storage::storage_compat::ObjectInfo;
-pub(crate) type StorageObjectOptions = crate::storage::storage_compat::ObjectOptions;
+pub(crate) type StorageGetObjectReader = crate::storage::core_storage_compat::GetObjectReader;
+pub(crate) type StorageObjectInfo = crate::storage::core_storage_compat::ObjectInfo;
+pub(crate) type StorageObjectOptions = crate::storage::core_storage_compat::ObjectOptions;
 pub(crate) type StorageObjectToDelete = rustfs_storage_api::ObjectToDelete;
-pub(crate) type StoragePutObjReader = crate::storage::storage_compat::PutObjReader;
+pub(crate) type StoragePutObjReader = crate::storage::core_storage_compat::PutObjReader;
 
 #[cfg(test)]
 mod concurrent_fix_test;
diff --git a/rustfs/src/storage/options.rs b/rustfs/src/storage/options.rs
index bf5b98393..a96324d90 100644
--- a/rustfs/src/storage/options.rs
+++ b/rustfs/src/storage/options.rs
@@ -12,9 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use crate::storage::storage_compat::BucketVersioningSys;
-use crate::storage::storage_compat::Result;
-use crate::storage::storage_compat::StorageError;
+use crate::storage::core_storage_compat::BucketVersioningSys;
+use crate::storage::core_storage_compat::Result;
+use crate::storage::core_storage_compat::StorageError;
 use http::header::{IF_MATCH, IF_NONE_MATCH};
 use http::{HeaderMap, HeaderValue};
 use rustfs_utils::http::{
diff --git a/rustfs/src/storage/sse.rs b/rustfs/src/storage/sse.rs
index 6c54b9d75..9774a0f92 100644
--- a/rustfs/src/storage/sse.rs
+++ b/rustfs/src/storage/sse.rs
@@ -69,7 +69,7 @@
 //! }
 //! ```
 
-use crate::storage::storage_compat::StorageError;
+use crate::storage::core_storage_compat::StorageError;
 #[cfg(feature = "rio-v2")]
 use aes_gcm::aead::Payload;
 use aes_gcm::{
@@ -134,8 +134,8 @@ const SEALED_KEY_SIZE: usize = DARE_HEADER_SIZE + 32 + DARE_TAG_SIZE;
 const OBJECT_KEY_DERIVATION_CONTEXT: &[u8] = b"object-encryption-key generation";
 
 use crate::error::ApiError;
-use crate::storage::storage_compat::Error;
-use crate::storage::storage_compat::get_bucket_sse_config;
+use crate::storage::core_storage_compat::Error;
+use crate::storage::core_storage_compat::get_bucket_sse_config;
 use rustfs_utils::http::headers::{
     AMZ_SERVER_SIDE_ENCRYPTION_CUSTOMER_ALGORITHM, AMZ_SERVER_SIDE_ENCRYPTION_CUSTOMER_KEY,
     AMZ_SERVER_SIDE_ENCRYPTION_CUSTOMER_KEY_MD5, AMZ_SERVER_SIDE_ENCRYPTION_KMS_CONTEXT,
@@ -751,19 +751,19 @@ pub struct ManagedSealedKey {
 }
 
 impl EncryptionMaterial {
-    pub fn write_encryption(&self, multipart_part_number: Option<usize>) -> crate::storage::storage_compat::WriteEncryption {
+    pub fn write_encryption(&self, multipart_part_number: Option<usize>) -> crate::storage::core_storage_compat::WriteEncryption {
         match (self.key_kind, multipart_part_number) {
             (EncryptionKeyKind::Object, Some(part_number)) => {
-                crate::storage::storage_compat::WriteEncryption::multipart_object_key(self.key_bytes, part_number as u32)
+                crate::storage::core_storage_compat::WriteEncryption::multipart_object_key(self.key_bytes, part_number as u32)
             }
             (EncryptionKeyKind::Object, None) => {
-                crate::storage::storage_compat::WriteEncryption::singlepart_object_key(self.key_bytes)
+                crate::storage::core_storage_compat::WriteEncryption::singlepart_object_key(self.key_bytes)
             }
             (EncryptionKeyKind::Direct, Some(part_number)) => {
-                crate::storage::storage_compat::WriteEncryption::multipart(self.key_bytes, self.base_nonce, part_number)
+                crate::storage::core_storage_compat::WriteEncryption::multipart(self.key_bytes, self.base_nonce, part_number)
             }
             (EncryptionKeyKind::Direct, None) => {
-                crate::storage::storage_compat::WriteEncryption::singlepart(self.key_bytes, self.base_nonce)
+                crate::storage::core_storage_compat::WriteEncryption::singlepart(self.key_bytes, self.base_nonce)
             }
         }
     }
diff --git a/scripts/check_architecture_migration_rules.sh b/scripts/check_architecture_migration_rules.sh
index 5cf237865..9f1e048fb 100755
--- a/scripts/check_architecture_migration_rules.sh
+++ b/scripts/check_architecture_migration_rules.sh
@@ -838,7 +838,7 @@ fi
       rustfs/src/app \
       --glob '!**/*storage_compat.rs' || true
     rg -n --no-heading 'crate::storage::storage_compat' \
-      rustfs/src/storage/rpc rustfs/src/storage/s3_api \
+      rustfs/src/storage \
       --glob '!**/*storage_compat.rs' || true
   }
 ) >"$RUSTFS_OWNER_COMPAT_CONSUMER_HITS_FILE"