diff --git a/spec/src/versionbits/mod.rs b/spec/src/versionbits/mod.rs
index ac3911e960b..443b37bcf41 100644
--- a/spec/src/versionbits/mod.rs
+++ b/spec/src/versionbits/mod.rs
@@ -4,15 +4,16 @@
 mod convert;
 
 use crate::consensus::Consensus;
+use ckb_logger::error;
 use ckb_types::{
-    core::{EpochExt, EpochNumber, HeaderView, Ratio, TransactionView, Version, DATA_DIR},
+    core::{EpochExt, EpochNumber, HeaderView, Ratio, TransactionView, Version},
+    global::DATA_DIR,
     packed::{Byte32, CellbaseWitnessReader},
     prelude::*,
 };
 use std::fmt;
 use std::sync::Arc;
 use std::{collections::HashMap, path::PathBuf};
-use ckb_logger::error;
 
 /// What bits to set in version for versionbits blocks
 pub const VERSIONBITS_TOP_BITS: Version = 0x00000000;
@@ -155,7 +156,11 @@ impl Cache {
     }
 
     pub fn insert(&self, key: &Byte32, value: ThresholdState) {
-        if let Err(e)  = cacache::write_sync(&self.path, Self::encode_key(&key), Self::encode_value(value)) {
+        if let Err(e) = cacache::write_sync(
+            &self.path,
+            Self::encode_key(&key),
+            Self::encode_value(value),
+        ) {
             error!("cacache write_sync failed {:?}", e);
         }
     }
diff --git a/util/app-config/src/app_config.rs b/util/app-config/src/app_config.rs
index edf597a33cf..476ed1a4e44 100644
--- a/util/app-config/src/app_config.rs
+++ b/util/app-config/src/app_config.rs
@@ -4,7 +4,7 @@
 //! we must put nested config struct in the tail to make it serializable,
 //! details <https://docs.rs/toml/0.5.0/toml/ser/index.html>
 
-use ckb_types::core::DATA_DIR;
+use ckb_types::global::DATA_DIR;
 use path_clean::PathClean;
 use std::fs;
 use std::path::{Path, PathBuf};
diff --git a/util/types/src/core/mod.rs b/util/types/src/core/mod.rs
index 3abcc950c54..ae8602a5771 100644
--- a/util/types/src/core/mod.rs
+++ b/util/types/src/core/mod.rs
@@ -32,9 +32,7 @@ pub use advanced_builders::{BlockBuilder, HeaderBuilder, TransactionBuilder};
 pub use blockchain::DepType;
 pub use extras::{BlockExt, EpochExt, EpochNumberWithFraction, TransactionInfo};
 pub use fee_rate::FeeRate;
-use once_cell::sync::OnceCell;
 pub use reward::{BlockEconomicState, BlockIssuance, BlockReward, MinerReward};
-use std::path::PathBuf;
 pub use transaction_meta::{TransactionMeta, TransactionMetaBuilder};
 pub use tx_pool::TransactionWithStatus;
 pub use views::{
@@ -61,5 +59,3 @@ pub type Cycle = u64;
 
 /// Version number.
 pub type Version = u32;
-
-pub static DATA_DIR: OnceCell<PathBuf> = OnceCell::new();
diff --git a/util/types/src/global.rs b/util/types/src/global.rs
new file mode 100644
index 00000000000..c8f4709c593
--- /dev/null
+++ b/util/types/src/global.rs
@@ -0,0 +1,8 @@
+//! Global data, initialized in the launch phase.
+
+
+use once_cell::sync::OnceCell;
+use std::path::PathBuf;
+
+/// ckb data directory path, located under root/data, initialized during the launch phase
+pub static DATA_DIR: OnceCell<PathBuf> = OnceCell::new();
diff --git a/util/types/src/lib.rs b/util/types/src/lib.rs
index 3e823f91e31..6b559dd614d 100644
--- a/util/types/src/lib.rs
+++ b/util/types/src/lib.rs
@@ -11,6 +11,7 @@ pub use molecule::{self, error};
 pub use numext_fixed_uint::{u256, U128, U256};
 
 pub mod core;
+pub mod global;
 
 pub mod constants;
 mod conversion;