diff --git a/Cargo.lock b/Cargo.lock
index af9c2f5..ed2de26 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -190,7 +190,7 @@ dependencies = [
 
 [[package]]
 name = "dragonfly-api"
-version = "2.0.170"
+version = "2.0.171"
 dependencies = [
  "prost",
  "prost-types",
diff --git a/Cargo.toml b/Cargo.toml
index 28fedac..bd1ff93 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dragonfly-api"
-version = "2.0.170"
+version = "2.0.171"
 authors = ["Gaius <gaius.qi@gmail.com>"]
 edition = "2021"
 license = "Apache-2.0"
diff --git a/pkg/apis/common/v2/common.pb.go b/pkg/apis/common/v2/common.pb.go
index 53664f2..ff47bd3 100644
--- a/pkg/apis/common/v2/common.pb.go
+++ b/pkg/apis/common/v2/common.pb.go
@@ -1564,6 +1564,10 @@ type Disk struct {
 	InodesFree uint64 `protobuf:"varint,7,opt,name=inodes_free,json=inodesFree,proto3" json:"inodes_free,omitempty"`
 	// Used percent of indoes on the data path of dragonfly directory.
 	InodesUsedPercent float64 `protobuf:"fixed64,8,opt,name=inodes_used_percent,json=inodesUsedPercent,proto3" json:"inodes_used_percent,omitempty"`
+	// Disk read bandwidth, in bytes per second.
+	ReadBandwidth uint64 `protobuf:"varint,9,opt,name=read_bandwidth,json=readBandwidth,proto3" json:"read_bandwidth,omitempty"`
+	// Disk write bandwidth, in bytes per second.
+	WriteBandwidth uint64 `protobuf:"varint,10,opt,name=write_bandwidth,json=writeBandwidth,proto3" json:"write_bandwidth,omitempty"`
 }
 
 func (x *Disk) Reset() {
@@ -1654,6 +1658,20 @@ func (x *Disk) GetInodesUsedPercent() float64 {
 	return 0
 }
 
+func (x *Disk) GetReadBandwidth() uint64 {
+	if x != nil {
+		return x.ReadBandwidth
+	}
+	return 0
+}
+
+func (x *Disk) GetWriteBandwidth() uint64 {
+	if x != nil {
+		return x.WriteBandwidth
+	}
+	return 0
+}
+
 // Build information.
 type Build struct {
 	state         protoimpl.MessageState
@@ -2589,7 +2607,7 @@ var file_pkg_apis_common_v2_common_proto_rawDesc = []byte{
 	0x75, 0x70, 0x6c, 0x6f, 0x61, 0x64, 0x5f, 0x72, 0x61, 0x74, 0x65, 0x5f, 0x6c, 0x69, 0x6d, 0x69,
 	0x74, 0x18, 0x08, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0f, 0x75, 0x70, 0x6c, 0x6f, 0x61, 0x64, 0x52,
 	0x61, 0x74, 0x65, 0x4c, 0x69, 0x6d, 0x69, 0x74, 0x42, 0x0b, 0x0a, 0x09, 0x5f, 0x6c, 0x6f, 0x63,
-	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x42, 0x06, 0x0a, 0x04, 0x5f, 0x69, 0x64, 0x63, 0x22, 0xae, 0x02,
+	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x42, 0x06, 0x0a, 0x04, 0x5f, 0x69, 0x64, 0x63, 0x22, 0xfe, 0x02,
 	0x0a, 0x04, 0x44, 0x69, 0x73, 0x6b, 0x12, 0x14, 0x0a, 0x05, 0x74, 0x6f, 0x74, 0x61, 0x6c, 0x18,
 	0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x05, 0x74, 0x6f, 0x74, 0x61, 0x6c, 0x12, 0x12, 0x0a, 0x04,
 	0x66, 0x72, 0x65, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x66, 0x72, 0x65, 0x65,
@@ -2608,7 +2626,12 @@ var file_pkg_apis_common_v2_common_proto_rawDesc = []byte{
 	0x75, 0x73, 0x65, 0x64, 0x5f, 0x70, 0x65, 0x72, 0x63, 0x65, 0x6e, 0x74, 0x18, 0x08, 0x20, 0x01,
 	0x28, 0x01, 0x42, 0x17, 0xfa, 0x42, 0x14, 0x12, 0x12, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 	0x59, 0x40, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x52, 0x11, 0x69, 0x6e, 0x6f,
-	0x64, 0x65, 0x73, 0x55, 0x73, 0x65, 0x64, 0x50, 0x65, 0x72, 0x63, 0x65, 0x6e, 0x74, 0x22, 0xf5,
+	0x64, 0x65, 0x73, 0x55, 0x73, 0x65, 0x64, 0x50, 0x65, 0x72, 0x63, 0x65, 0x6e, 0x74, 0x12, 0x25,
+	0x0a, 0x0e, 0x72, 0x65, 0x61, 0x64, 0x5f, 0x62, 0x61, 0x6e, 0x64, 0x77, 0x69, 0x64, 0x74, 0x68,
+	0x18, 0x09, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0d, 0x72, 0x65, 0x61, 0x64, 0x42, 0x61, 0x6e, 0x64,
+	0x77, 0x69, 0x64, 0x74, 0x68, 0x12, 0x27, 0x0a, 0x0f, 0x77, 0x72, 0x69, 0x74, 0x65, 0x5f, 0x62,
+	0x61, 0x6e, 0x64, 0x77, 0x69, 0x64, 0x74, 0x68, 0x18, 0x0a, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0e,
+	0x77, 0x72, 0x69, 0x74, 0x65, 0x42, 0x61, 0x6e, 0x64, 0x77, 0x69, 0x64, 0x74, 0x68, 0x22, 0xf5,
 	0x01, 0x0a, 0x05, 0x42, 0x75, 0x69, 0x6c, 0x64, 0x12, 0x1f, 0x0a, 0x0b, 0x67, 0x69, 0x74, 0x5f,
 	0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x67,
 	0x69, 0x74, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x22, 0x0a, 0x0a, 0x67, 0x69, 0x74,
diff --git a/pkg/apis/common/v2/common.pb.validate.go b/pkg/apis/common/v2/common.pb.validate.go
index 23b5d78..00dfbcc 100644
--- a/pkg/apis/common/v2/common.pb.validate.go
+++ b/pkg/apis/common/v2/common.pb.validate.go
@@ -2084,6 +2084,10 @@ func (m *Disk) validate(all bool) error {
 		errors = append(errors, err)
 	}
 
+	// no validation rules for ReadBandwidth
+
+	// no validation rules for WriteBandwidth
+
 	if len(errors) > 0 {
 		return DiskMultiError(errors)
 	}
diff --git a/pkg/apis/common/v2/common.proto b/pkg/apis/common/v2/common.proto
index 850de4e..2d1c68b 100644
--- a/pkg/apis/common/v2/common.proto
+++ b/pkg/apis/common/v2/common.proto
@@ -373,6 +373,10 @@ message Disk {
   uint64 inodes_free = 7;
   // Used percent of indoes on the data path of dragonfly directory.
   double inodes_used_percent = 8 [(validate.rules).double = {gte: 0, lte: 100}];
+  // Disk read bandwidth, in bytes per second.
+  uint64 read_bandwidth = 9;
+  // Disk write bandwidth, in bytes per second.
+  uint64 write_bandwidth = 10;
 }
 
 // Build information.
diff --git a/proto/common.proto b/proto/common.proto
index 2d4fda0..cbc801d 100644
--- a/proto/common.proto
+++ b/proto/common.proto
@@ -369,6 +369,10 @@ message Disk {
   uint64 inodes_free = 7;
   // Used percent of indoes on the data path of dragonfly directory.
   double inodes_used_percent = 8;
+  // Disk read bandwidth, in bytes per second.
+  uint64 read_bandwidth = 9;
+  // Disk write bandwidth, in bytes per second.
+  uint64 write_bandwidth = 10;
 }
 
 // Build information.
diff --git a/src/common.v2.rs b/src/common.v2.rs
index 9f41d4b..bc91ad1 100644
--- a/src/common.v2.rs
+++ b/src/common.v2.rs
@@ -392,6 +392,12 @@ pub struct Disk {
     /// Used percent of indoes on the data path of dragonfly directory.
     #[prost(double, tag = "8")]
     pub inodes_used_percent: f64,
+    /// Disk read bandwidth, in bytes per second.
+    #[prost(uint64, tag = "9")]
+    pub read_bandwidth: u64,
+    /// Disk write bandwidth, in bytes per second.
+    #[prost(uint64, tag = "10")]
+    pub write_bandwidth: u64,
 }
 /// Build information.
 #[derive(serde::Serialize, serde::Deserialize)]
diff --git a/src/descriptor.bin b/src/descriptor.bin
index 4eedcfd..1d28514 100644
Binary files a/src/descriptor.bin and b/src/descriptor.bin differ