diff --git a/ecstore/src/bucket/metadata.rs b/ecstore/src/bucket/metadata.rs
index 6d53e1b4d..8f349a983 100644
--- a/ecstore/src/bucket/metadata.rs
+++ b/ecstore/src/bucket/metadata.rs
@@ -2,6 +2,7 @@ use super::{
     encryption::BucketSSEConfig, event, lifecycle::lifecycle::Lifecycle, objectlock, policy::bucket_policy::BucketPolicy,
     quota::BucketQuota, replication, tags::Tags, target::BucketTargets, versioning::Versioning,
 };
+
 use byteorder::{BigEndian, ByteOrder, LittleEndian};
 use rmp_serde::Serializer as rmpSerializer;
 use serde::Serializer;
@@ -10,7 +11,7 @@ use std::collections::HashMap;
 use std::fmt::Display;
 use std::str::FromStr;
 use time::OffsetDateTime;
-use tracing::error;
+use tracing::{error, warn};
 
 use crate::bucket::tags;
 use crate::config;
@@ -172,7 +173,19 @@ impl BucketMetadata {
             return Err(Error::msg("read_bucket_metadata: data invalid"));
         }
 
-        // TODO: check version
+        let format = LittleEndian::read_u16(&buf[0..2]);
+        let version = LittleEndian::read_u16(&buf[2..4]);
+
+        match format {
+            BUCKET_METADATA_FORMAT => {}
+            _ => return Err(Error::msg("read_bucket_metadata: format invalid")),
+        }
+
+        match version {
+            BUCKET_METADATA_VERSION => {}
+            _ => return Err(Error::msg("read_bucket_metadata: version invalid")),
+        }
+
         Ok(())
     }
 
@@ -252,6 +265,7 @@ impl BucketMetadata {
 
     fn parse_all_configs(&mut self, _api: &ECStore) -> Result<()> {
         if !self.tagging_config_xml.is_empty() {
+            warn!("self.tagging_config_xml {:?}", &self.tagging_config_xml);
             self.tagging_config = Some(tags::Tags::unmarshal(&self.tagging_config_xml)?);
         }
 
@@ -267,6 +281,7 @@ pub async fn load_bucket_metadata_parse(api: &ECStore, bucket: &str, parse: bool
     let mut bm = match read_bucket_metadata(api, bucket).await {
         Ok(res) => res,
         Err(err) => {
+            warn!("load_bucket_metadata_parse err {:?}", &err);
             if !config::error::is_not_found(&err) {
                 return Err(err);
             }
@@ -299,7 +314,9 @@ async fn read_bucket_metadata(api: &ECStore, bucket: &str) -> Result<BucketMetad
 
     BucketMetadata::check_header(&data)?;
 
-    BucketMetadata::unmarshal(&data[4..])
+    let bm = BucketMetadata::unmarshal(&data[4..])?;
+
+    Ok(bm)
 }
 
 fn _deserialize_from_str<'de, S, D>(deserializer: D) -> core::result::Result<S, D::Error>
diff --git a/ecstore/src/bucket/metadata_sys.rs b/ecstore/src/bucket/metadata_sys.rs
index a43eda5df..05a60f8f4 100644
--- a/ecstore/src/bucket/metadata_sys.rs
+++ b/ecstore/src/bucket/metadata_sys.rs
@@ -1,3 +1,4 @@
+use std::collections::HashSet;
 use std::{collections::HashMap, sync::Arc};
 
 use crate::bucket::error::BucketMetadataError;
@@ -7,21 +8,26 @@ use crate::config;
 use crate::config::error::ConfigError;
 use crate::disk::error::DiskError;
 use crate::error::{Error, Result};
-use crate::global::{is_dist_erasure, is_erasure, new_object_layer_fn};
+use crate::global::{is_dist_erasure, is_erasure, new_object_layer_fn, GLOBAL_Endpoints};
 use crate::store::ECStore;
 use futures::future::join_all;
 use lazy_static::lazy_static;
 use time::OffsetDateTime;
 use tokio::sync::RwLock;
+use tracing::{error, info, warn};
 
 use super::metadata::{load_bucket_metadata, BucketMetadata};
 use super::tags;
 
 lazy_static! {
-    static ref GLOBAL_BucketMetadataSys: Arc<BucketMetadataSys> = Arc::new(BucketMetadataSys::new());
+    static ref GLOBAL_BucketMetadataSys: Arc<RwLock<BucketMetadataSys>> = Arc::new(RwLock::new(BucketMetadataSys::new()));
 }
 
-pub fn get_bucket_metadata_sys() -> Arc<BucketMetadataSys> {
+pub async fn init_bucket_metadata_sys(api: ECStore, buckets: Vec<String>) {
+    let mut sys = GLOBAL_BucketMetadataSys.write().await;
+    sys.init(api, buckets).await
+}
+pub async fn get_bucket_metadata_sys() -> Arc<RwLock<BucketMetadataSys>> {
     GLOBAL_BucketMetadataSys.clone()
 }
 
@@ -37,46 +43,77 @@ impl BucketMetadataSys {
         Self::default()
     }
 
-    pub async fn init(&mut self, api: Option<ECStore>, buckets: Vec<&str>) -> Result<()> {
-        if api.is_none() {
-            return Err(Error::msg("errServerNotInitialized"));
-        }
-        self.api = api;
+    pub async fn init(&mut self, api: ECStore, buckets: Vec<String>) {
+        // if api.is_none() {
+        //     return Err(Error::msg("errServerNotInitialized"));
+        // }
+        self.api = Some(api);
 
         let _ = self.init_internal(buckets).await;
+    }
+    async fn init_internal(&self, buckets: Vec<String>) -> Result<()> {
+        let count = {
+            let endpoints = GLOBAL_Endpoints.read().await;
+            endpoints.es_count() * 10
+        };
+
+        let mut failed_buckets: HashSet<String> = HashSet::new();
+        let mut buckets = buckets.as_slice();
+
+        loop {
+            if buckets.len() < count {
+                self.concurrent_load(buckets, &mut failed_buckets).await;
+                break;
+            }
+
+            self.concurrent_load(&buckets[..count], &mut failed_buckets).await;
+
+            buckets = &buckets[count..]
+        }
+
+        let mut initialized = self.initialized.write().await;
+        *initialized = true;
+
+        if is_dist_erasure().await {
+            // TODO: refresh_buckets_metadata_loop
+        }
 
         Ok(())
     }
-    async fn init_internal(&self, buckets: Vec<&str>) -> Result<()> {
-        if self.api.is_none() {
-            return Err(Error::msg("errServerNotInitialized"));
-        }
-        let mut futures = Vec::new();
-        let mut errs = Vec::new();
-        let mut ress = Vec::new();
 
-        for &bucket in buckets.iter() {
-            futures.push(load_bucket_metadata(self.api.as_ref().unwrap(), bucket));
+    async fn concurrent_load(&self, buckets: &[String], failed_buckets: &mut HashSet<String>) {
+        let mut futures = Vec::new();
+
+        for bucket in buckets.iter() {
+            futures.push(load_bucket_metadata(self.api.as_ref().unwrap(), bucket.as_str()));
         }
 
         let results = join_all(futures).await;
 
+        let mut idx = 0;
+
+        let mut mp = self.metadata_map.write().await;
+
         for res in results {
             match res {
-                Ok(entrys) => {
-                    ress.push(Some(entrys));
-                    errs.push(None);
+                Ok(res) => {
+                    if let Some(bucket) = buckets.get(idx) {
+                        mp.insert(bucket.clone(), res);
+                    }
                 }
                 Err(e) => {
-                    ress.push(None);
-                    errs.push(Some(e));
+                    error!("Unable to load bucket metadata, will be retried: {:?}", e);
+                    if let Some(bucket) = buckets.get(idx) {
+                        failed_buckets.insert(bucket.clone());
+                    }
                 }
             }
+
+            idx += 1;
         }
-        unimplemented!()
     }
 
-    async fn concurrent_load(&self, buckets: Vec<&str>) -> Result<Vec<&str>> {
+    async fn refresh_buckets_metadata_loop(&self, failed_buckets: &HashSet<String>) -> Result<()> {
         unimplemented!()
     }
 
@@ -105,7 +142,7 @@ impl BucketMetadataSys {
         map.clear();
     }
 
-    pub async fn update(&mut self, bucket: &str, config_file: &str, data: Vec<u8>) -> Result<(OffsetDateTime)> {
+    pub async fn update(&mut self, bucket: &str, config_file: &str, data: Vec<u8>) -> Result<OffsetDateTime> {
         self.update_and_parse(bucket, config_file, data, true).await
     }
 
diff --git a/ecstore/src/bucket/mod.rs b/ecstore/src/bucket/mod.rs
index b2df60cc2..9be464946 100644
--- a/ecstore/src/bucket/mod.rs
+++ b/ecstore/src/bucket/mod.rs
@@ -10,7 +10,7 @@ mod quota;
 mod replication;
 mod tags;
 mod target;
-mod versioning;
 pub mod utils;
+mod versioning;
 
-pub use metadata_sys::get_bucket_metadata_sys;
+pub use metadata_sys::{get_bucket_metadata_sys, init_bucket_metadata_sys};
diff --git a/ecstore/src/config/common.rs b/ecstore/src/config/common.rs
index e7132ed65..6dedfbed8 100644
--- a/ecstore/src/config/common.rs
+++ b/ecstore/src/config/common.rs
@@ -47,7 +47,7 @@ async fn save_config_with_opts(api: &ECStore, file: &str, data: &[u8], opts: &Ob
             RUSTFS_META_BUCKET,
             file,
             PutObjReader::new(StreamingBlob::from(Body::from(data.to_vec())), data.len()),
-            &ObjectOptions::default(),
+            opts,
         )
         .await?;
     Ok(())
diff --git a/ecstore/src/endpoints.rs b/ecstore/src/endpoints.rs
index ad533140b..14547bbfd 100644
--- a/ecstore/src/endpoints.rs
+++ b/ecstore/src/endpoints.rs
@@ -388,7 +388,7 @@ pub struct PoolEndpoints {
 
 /// list of list of endpoints
 #[derive(Debug, Clone)]
-pub struct EndpointServerPools(Vec<PoolEndpoints>);
+pub struct EndpointServerPools(pub Vec<PoolEndpoints>);
 
 impl From<Vec<PoolEndpoints>> for EndpointServerPools {
     fn from(v: Vec<PoolEndpoints>) -> Self {
@@ -409,6 +409,9 @@ impl AsMut<Vec<PoolEndpoints>> for EndpointServerPools {
 }
 
 impl EndpointServerPools {
+    pub fn reset(&mut self, eps: Vec<PoolEndpoints>) {
+        self.0 = eps;
+    }
     pub fn from_volumes(server_addr: &str, endpoints: Vec<String>) -> Result<(EndpointServerPools, SetupType)> {
         let layouts = DisksLayout::try_from(endpoints.as_slice())?;
 
diff --git a/ecstore/src/global.rs b/ecstore/src/global.rs
index c7ac7b00b..1b24924c0 100644
--- a/ecstore/src/global.rs
+++ b/ecstore/src/global.rs
@@ -1,17 +1,27 @@
-use crate::error::Result;
 use lazy_static::lazy_static;
 use std::{collections::HashMap, sync::Arc};
-use tokio::{fs, sync::RwLock};
+use tokio::sync::RwLock;
 
 use crate::{
-    disk::{new_disk, DiskOption, DiskStore},
-    endpoints::{EndpointServerPools, SetupType},
+    disk::DiskStore,
+    endpoints::{EndpointServerPools, PoolEndpoints, SetupType},
     store::ECStore,
 };
 
 lazy_static! {
     pub static ref GLOBAL_OBJECT_API: Arc<RwLock<Option<ECStore>>> = Arc::new(RwLock::new(None));
     pub static ref GLOBAL_LOCAL_DISK: Arc<RwLock<Vec<Option<DiskStore>>>> = Arc::new(RwLock::new(Vec::new()));
+    static ref GLOBAL_IsErasure: RwLock<bool> = RwLock::new(false);
+    static ref GLOBAL_IsDistErasure: RwLock<bool> = RwLock::new(false);
+    static ref GLOBAL_IsErasureSD: RwLock<bool> = RwLock::new(false);
+    pub static ref GLOBAL_LOCAL_DISK_MAP: Arc<RwLock<HashMap<String, Option<DiskStore>>>> = Arc::new(RwLock::new(HashMap::new()));
+    pub static ref GLOBAL_LOCAL_DISK_SET_DRIVES: Arc<RwLock<TypeLocalDiskSetDrives>> = Arc::new(RwLock::new(Vec::new()));
+    pub static ref GLOBAL_Endpoints: RwLock<EndpointServerPools> = RwLock::new(EndpointServerPools(Vec::new()));
+}
+
+pub async fn set_global_endpoints(eps: Vec<PoolEndpoints>) {
+    let mut endpoints = GLOBAL_Endpoints.write().await;
+    endpoints.reset(eps);
 }
 
 pub fn new_object_layer_fn() -> Arc<RwLock<Option<ECStore>>> {
@@ -23,12 +33,6 @@ pub async fn set_object_layer(o: ECStore) {
     *global_object_api = Some(o);
 }
 
-lazy_static! {
-    static ref GLOBAL_IsErasure: RwLock<bool> = RwLock::new(false);
-    static ref GLOBAL_IsDistErasure: RwLock<bool> = RwLock::new(false);
-    static ref GLOBAL_IsErasureSD: RwLock<bool> = RwLock::new(false);
-}
-
 pub async fn is_dist_erasure() -> bool {
     let lock = GLOBAL_IsDistErasure.read().await;
     *lock == true
@@ -55,8 +59,3 @@ pub async fn update_erasure_type(setup_type: SetupType) {
 }
 
 type TypeLocalDiskSetDrives = Vec<Vec<Vec<Option<DiskStore>>>>;
-
-lazy_static! {
-    pub static ref GLOBAL_LOCAL_DISK_MAP: Arc<RwLock<HashMap<String, Option<DiskStore>>>> = Arc::new(RwLock::new(HashMap::new()));
-    pub static ref GLOBAL_LOCAL_DISK_SET_DRIVES: Arc<RwLock<TypeLocalDiskSetDrives>> = Arc::new(RwLock::new(Vec::new()));
-}
diff --git a/ecstore/src/lib.rs b/ecstore/src/lib.rs
index 4210db4c7..bd8bced90 100644
--- a/ecstore/src/lib.rs
+++ b/ecstore/src/lib.rs
@@ -21,4 +21,5 @@ mod utils;
 pub mod bucket;
 
 pub use global::new_object_layer_fn;
+pub use global::set_global_endpoints;
 pub use global::update_erasure_type;
diff --git a/ecstore/src/peer.rs b/ecstore/src/peer.rs
index 27256de8a..a1b6deb04 100644
--- a/ecstore/src/peer.rs
+++ b/ecstore/src/peer.rs
@@ -26,7 +26,7 @@ pub trait PeerS3Client: Debug + Sync + Send + 'static {
     fn get_pools(&self) -> Option<Vec<usize>>;
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct S3PeerSys {
     pub clients: Vec<Client>,
     pub pools_count: usize,
diff --git a/ecstore/src/store.rs b/ecstore/src/store.rs
index 0e563adae..772d87e94 100644
--- a/ecstore/src/store.rs
+++ b/ecstore/src/store.rs
@@ -34,7 +34,7 @@ use tokio::sync::Semaphore;
 use tracing::{debug, info};
 use uuid::Uuid;
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct ECStore {
     pub id: uuid::Uuid,
     // pub disks: Vec<DiskStore>,
@@ -46,7 +46,7 @@ pub struct ECStore {
 
 impl ECStore {
     #[allow(clippy::new_ret_no_self)]
-    pub async fn new(_address: String, endpoint_pools: EndpointServerPools) -> Result<()> {
+    pub async fn new(_address: String, endpoint_pools: EndpointServerPools) -> Result<Self> {
         // let layouts = DisksLayout::try_from(endpoints.as_slice())?;
 
         let mut deployment_id = None;
@@ -145,9 +145,9 @@ impl ECStore {
             peer_sys,
         };
 
-        set_object_layer(ec).await;
+        set_object_layer(ec.clone()).await;
 
-        Ok(())
+        Ok(ec)
     }
 
     pub fn init_local_disks() {}
@@ -507,28 +507,29 @@ impl StorageAPI for ECStore {
         // TODO: delete created bucket when error
         self.peer_sys.make_bucket(bucket, opts).await?;
 
-        let meta = BucketMetadata::new(bucket);
-        let data = meta.marshal_msg()?;
-        let file_path = meta.save_file_path();
+        let mut meta = BucketMetadata::new(bucket);
+        meta.save(self).await?;
+        // let data = meta.marshal_msg()?;
+        // let file_path = meta.save_file_path();
 
-        // TODO: wrap hash reader
+        // // TODO: wrap hash reader
 
-        let content_len = data.len();
+        // let content_len = data.len();
 
-        let body = Body::from(data);
+        // let body = Body::from(data);
 
-        let reader = PutObjReader::new(StreamingBlob::from(body), content_len);
+        // let reader = PutObjReader::new(StreamingBlob::from(body), content_len);
 
-        self.put_object(
-            RUSTFS_META_BUCKET,
-            &file_path,
-            reader,
-            &ObjectOptions {
-                max_parity: true,
-                ..Default::default()
-            },
-        )
-        .await?;
+        // self.put_object(
+        //     RUSTFS_META_BUCKET,
+        //     &file_path,
+        //     reader,
+        //     &ObjectOptions {
+        //         max_parity: true,
+        //         ..Default::default()
+        //     },
+        // )
+        // .await?;
 
         // TODO: toObjectErr
 
diff --git a/ecstore/src/store_api.rs b/ecstore/src/store_api.rs
index d05bfea6b..8289ec22a 100644
--- a/ecstore/src/store_api.rs
+++ b/ecstore/src/store_api.rs
@@ -414,7 +414,11 @@ pub struct ObjectOptions {
 // }
 
 #[derive(Debug, Default, Serialize, Deserialize)]
-pub struct BucketOptions {}
+pub struct BucketOptions {
+    pub deleted: bool, // true only when site replication is enabled
+    pub cached: bool, // true only when we are requesting a cached response instead of hitting the disk for example ListBuckets() call.
+    pub no_metadata: bool,
+}
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct BucketInfo {
diff --git a/rustfs/src/main.rs b/rustfs/src/main.rs
index 802832a83..c23e04a6f 100644
--- a/rustfs/src/main.rs
+++ b/rustfs/src/main.rs
@@ -6,8 +6,11 @@ mod storage;
 use clap::Parser;
 use common::error::{Error, Result};
 use ecstore::{
+    bucket::init_bucket_metadata_sys,
     endpoints::EndpointServerPools,
+    set_global_endpoints,
     store::{init_local_disks, ECStore},
+    store_api::{BucketOptions, StorageAPI},
     update_erasure_type,
 };
 use grpc::make_server;
@@ -90,8 +93,9 @@ async fn run(opt: config::Opt) -> Result<()> {
     // 用于rpc
     let (endpoint_pools, setup_type) = EndpointServerPools::from_volumes(opt.address.clone().as_str(), opt.volumes.clone())
         .map_err(|err| Error::from_string(err.to_string()))?;
-
+    set_global_endpoints(endpoint_pools.as_ref().clone()).await;
     update_erasure_type(setup_type).await;
+
     // 初始化本地磁盘
     init_local_disks(endpoint_pools.clone())
         .await
@@ -179,11 +183,23 @@ async fn run(opt: config::Opt) -> Result<()> {
     });
 
     // init store
-    ECStore::new(opt.address.clone(), endpoint_pools.clone())
+    let store = ECStore::new(opt.address.clone(), endpoint_pools.clone())
         .await
         .map_err(|err| Error::from_string(err.to_string()))?;
     info!(" init store success!");
 
+    let buckets_list = store
+        .list_bucket(&BucketOptions {
+            no_metadata: true,
+            ..Default::default()
+        })
+        .await
+        .map_err(|err| Error::from_string(err.to_string()))?;
+
+    let buckets = buckets_list.iter().map(|v| v.name.clone()).collect();
+
+    init_bucket_metadata_sys(store.clone(), buckets).await;
+
     tokio::select! {
         _ = tokio::signal::ctrl_c() => {
 
diff --git a/rustfs/src/storage/ecfs.rs b/rustfs/src/storage/ecfs.rs
index 2c9a0325d..b701404bb 100644
--- a/rustfs/src/storage/ecfs.rs
+++ b/rustfs/src/storage/ecfs.rs
@@ -250,7 +250,7 @@ impl S3 for FS {
             None => return Err(S3Error::with_message(S3ErrorCode::InternalError, format!("Not init",))),
         };
 
-        if let Err(e) = store.get_bucket_info(&input.bucket, &BucketOptions {}).await {
+        if let Err(e) = store.get_bucket_info(&input.bucket, &BucketOptions::default()).await {
             if DiskError::VolumeNotFound.is(&e) {
                 return Err(s3_error!(NoSuchBucket));
             } else {
@@ -324,7 +324,7 @@ impl S3 for FS {
             None => return Err(S3Error::with_message(S3ErrorCode::InternalError, format!("Not init",))),
         };
 
-        if let Err(e) = store.get_bucket_info(&input.bucket, &BucketOptions {}).await {
+        if let Err(e) = store.get_bucket_info(&input.bucket, &BucketOptions::default()).await {
             if DiskError::VolumeNotFound.is(&e) {
                 return Err(s3_error!(NoSuchBucket));
             } else {
@@ -375,7 +375,7 @@ impl S3 for FS {
             None => return Err(S3Error::with_message(S3ErrorCode::InternalError, format!("Not init",))),
         };
 
-        let bucket_infos = try_!(store.list_bucket(&BucketOptions {}).await);
+        let bucket_infos = try_!(store.list_bucket(&BucketOptions::default()).await);
 
         let buckets: Vec<Bucket> = bucket_infos
             .iter()