diff --git a/ecstore/src/endpoint.rs b/ecstore/src/endpoint.rs
index 6a37514ab..7b6cef1c4 100644
--- a/ecstore/src/endpoint.rs
+++ b/ecstore/src/endpoint.rs
@@ -52,7 +52,7 @@ pub struct Node {
 }
 
 /// any type of endpoint.
-#[derive(Debug, PartialEq, Eq)]
+#[derive(Debug, PartialEq, Eq, Clone)]
 pub struct Endpoint {
     pub url: url::Url,
     pub is_local: bool,
@@ -221,7 +221,7 @@ impl Endpoint {
 }
 
 /// list of same type of endpoint.
-#[derive(Debug, Default)]
+#[derive(Debug, Default, Clone)]
 pub struct Endpoints(Vec<Endpoint>);
 
 impl AsRef<Vec<Endpoint>> for Endpoints {
@@ -546,7 +546,7 @@ impl PoolEndpointList {
 
 /// represent endpoints in a given pool
 /// along with its setCount and setDriveCount.
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct PoolEndpoints {
     // indicates if endpoints are provided in non-ellipses style
     pub legacy: bool,
@@ -558,7 +558,7 @@ pub struct PoolEndpoints {
 }
 
 /// list of list of endpoints
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct EndpointServerPools(Vec<PoolEndpoints>);
 
 impl From<Vec<PoolEndpoints>> for EndpointServerPools {
@@ -631,6 +631,14 @@ impl EndpointServerPools {
         Ok(())
     }
 
+    /// returns true if the first endpoint is local.
+    pub fn first_local(&self) -> bool {
+        self.0
+            .first()
+            .and_then(|v| v.endpoints.as_ref().first())
+            .map_or(false, |v| v.is_local)
+    }
+
     /// returns a sorted list of nodes in this cluster
     pub fn get_nodes(&self) -> Vec<Node> {
         let mut node_map = HashMap::new();
diff --git a/ecstore/src/lib.rs b/ecstore/src/lib.rs
index a584e34e9..7335ba9a7 100644
--- a/ecstore/src/lib.rs
+++ b/ecstore/src/lib.rs
@@ -9,9 +9,9 @@ mod erasure;
 pub mod error;
 mod file_meta;
 mod format;
-// mod peer;
-// mod sets;
-// pub mod store;
+mod peer;
+mod sets;
+pub mod store;
 pub mod store_api;
 mod store_init;
 mod utils;
diff --git a/ecstore/src/peer.rs b/ecstore/src/peer.rs
index 7e61af877..cf23ffcc5 100644
--- a/ecstore/src/peer.rs
+++ b/ecstore/src/peer.rs
@@ -14,7 +14,7 @@ type Client = Arc<Box<dyn PeerS3Client>>;
 #[async_trait]
 pub trait PeerS3Client: Debug + Sync + Send + 'static {
     async fn make_bucket(&self, bucket: &str, opts: &MakeBucketOptions) -> Result<()>;
-    fn get_pools(&self) -> Vec<i32>;
+    fn get_pools(&self) -> Vec<usize>;
 }
 
 #[derive(Debug)]
@@ -53,7 +53,7 @@ impl S3PeerSys {
 
 #[async_trait]
 impl PeerS3Client for S3PeerSys {
-    fn get_pools(&self) -> Vec<i32> {
+    fn get_pools(&self) -> Vec<usize> {
         unimplemented!()
     }
     async fn make_bucket(&self, bucket: &str, opts: &MakeBucketOptions) -> Result<()> {
@@ -80,7 +80,7 @@ impl PeerS3Client for S3PeerSys {
             let mut per_pool_errs = Vec::with_capacity(self.clients.len());
             for (j, cli) in self.clients.iter().enumerate() {
                 let pools = cli.get_pools();
-                let idx = i as i32;
+                let idx = i;
                 if pools.contains(&idx) {
                     per_pool_errs.push(errors[j].as_ref());
                 }
@@ -99,11 +99,11 @@ impl PeerS3Client for S3PeerSys {
 pub struct LocalPeerS3Client {
     pub local_disks: Vec<DiskStore>,
     pub node: Node,
-    pub pools: Vec<i32>,
+    pub pools: Vec<usize>,
 }
 
 impl LocalPeerS3Client {
-    fn new(local_disks: Vec<DiskStore>, node: Node, pools: Vec<i32>) -> Self {
+    fn new(local_disks: Vec<DiskStore>, node: Node, pools: Vec<usize>) -> Self {
         Self {
             local_disks,
             node,
@@ -114,7 +114,7 @@ impl LocalPeerS3Client {
 
 #[async_trait]
 impl PeerS3Client for LocalPeerS3Client {
-    fn get_pools(&self) -> Vec<i32> {
+    fn get_pools(&self) -> Vec<usize> {
         self.pools.clone()
     }
     async fn make_bucket(&self, bucket: &str, opts: &MakeBucketOptions) -> Result<()> {
@@ -154,18 +154,18 @@ impl PeerS3Client for LocalPeerS3Client {
 #[derive(Debug)]
 pub struct RemotePeerS3Client {
     pub node: Node,
-    pub pools: Vec<i32>,
+    pub pools: Vec<usize>,
 }
 
 impl RemotePeerS3Client {
-    fn new(node: Node, pools: Vec<i32>) -> Self {
+    fn new(node: Node, pools: Vec<usize>) -> Self {
         Self { node, pools }
     }
 }
 
 #[async_trait]
 impl PeerS3Client for RemotePeerS3Client {
-    fn get_pools(&self) -> Vec<i32> {
+    fn get_pools(&self) -> Vec<usize> {
         unimplemented!()
     }
     async fn make_bucket(&self, _bucket: &str, _opts: &MakeBucketOptions) -> Result<()> {
diff --git a/ecstore/src/store.rs b/ecstore/src/store.rs
index dfdeaa0f5..bf3145d3c 100644
--- a/ecstore/src/store.rs
+++ b/ecstore/src/store.rs
@@ -29,20 +29,21 @@ pub struct ECStore {
 
 impl ECStore {
     pub async fn new(address: String, endpoints: Vec<String>) -> Result<Self> {
-        let layouts = DisksLayout::try_from(endpoints.as_slice())?;
+        let layouts = DisksLayout::try_from(endpoints.as_slice()).map_err(|v| Error::msg(v))?;
 
         let mut deployment_id = None;
 
-        let (endpoint_pools, _) = EndpointServerPools::create_server_endpoints(address.as_str(), &layouts)?;
+        let (endpoint_pools, _) =
+            EndpointServerPools::create_server_endpoints(address.as_str(), &layouts).map_err(|v| Error::msg(v))?;
 
-        let mut pools = Vec::with_capacity(endpoint_pools.len());
-        let mut disk_map = HashMap::with_capacity(endpoint_pools.len());
+        let mut pools = Vec::with_capacity(endpoint_pools.as_ref().len());
+        let mut disk_map = HashMap::with_capacity(endpoint_pools.as_ref().len());
 
-        let first_is_local = endpoint_pools.first_is_local();
+        let first_is_local = endpoint_pools.first_local();
 
         let mut local_disks = Vec::new();
 
-        for (i, pool_eps) in endpoint_pools.iter().enumerate() {
+        for (i, pool_eps) in endpoint_pools.as_ref().iter().enumerate() {
             // TODO: read from config parseStorageClass
             let partiy_count = store_init::default_partiy_count(pool_eps.drives_per_set);