diff --git a/weed/command/filer.go b/weed/command/filer.go
index 98e243a09..90eb04bee 100644
--- a/weed/command/filer.go
+++ b/weed/command/filer.go
@@ -280,9 +280,6 @@ func runFiler(cmd *Command, args []string) bool {
 			filerS3Options.bindIp = f.bindIp
 		}
 		filerS3Options.localFilerSocket = f.localSocket
-		if *f.dataCenter != "" && *filerS3Options.dataCenter == "" {
-			filerS3Options.dataCenter = f.dataCenter
-		}
 		// Set S3 metrics IP based on bind IP if not explicitly set
 		if *filerS3Options.metricsHttpIp == "" {
 			*filerS3Options.metricsHttpIp = *filerS3Options.bindIp
@@ -324,9 +321,6 @@ func runFiler(cmd *Command, args []string) bool {
 		if *filerSftpOptions.bindIp == "" {
 			filerSftpOptions.bindIp = f.bindIp
 		}
-		if *f.dataCenter != "" && *filerSftpOptions.dataCenter == "" {
-			filerSftpOptions.dataCenter = f.dataCenter
-		}
 		go func(delay time.Duration) {
 			time.Sleep(delay * time.Second)
 			filerSftpOptions.startSftpServer()
diff --git a/weed/command/mini.go b/weed/command/mini.go
index 99a525537..853c8e007 100644
--- a/weed/command/mini.go
+++ b/weed/command/mini.go
@@ -1407,7 +1407,6 @@ func runMini(cmd *Command, args []string) bool {
 
 	miniFilerOptions.dataCenter = miniDataCenter
 	miniFilerOptions.rack = miniRack
-	miniS3Options.dataCenter = miniDataCenter
 	miniFilerOptions.disableHttp = miniDisableHttp
 	miniMasterOptions.disableHttp = miniDisableHttp
 
diff --git a/weed/command/server.go b/weed/command/server.go
index 501534854..0e4ac169a 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -175,6 +175,7 @@ func init() {
 	s3Options.icebergCredentialDuration = cmdServer.Flag.Int("s3.iceberg.credentialDurationSeconds", 3600, "lifetime of credentials vended by the Iceberg catalog")
 	s3Options.domainName = cmdServer.Flag.String("s3.domainName", "", "suffix of the host name in comma separated list, {bucket}.{domainName}")
 	s3Options.allowedOrigins = cmdServer.Flag.String("s3.allowedOrigins", "*", "comma separated list of allowed origins")
+	s3Options.dataCenter = cmdServer.Flag.String("s3.dataCenter", "", "prefer to read and write to volumes in this data center")
 	s3Options.tlsPrivateKey = cmdServer.Flag.String("s3.key.file", "", "path to the TLS private key file")
 	s3Options.tlsCertificate = cmdServer.Flag.String("s3.cert.file", "", "path to the TLS certificate file")
 	s3Options.tlsCACertificate = cmdServer.Flag.String("s3.cacert.file", "", "path to the TLS CA certificate file")
@@ -210,6 +211,7 @@ func init() {
 	sftpOptions.clientAliveCountMax = cmdServer.Flag.Int("sftp.clientAliveCountMax", 3, "maximum number of missed keep-alive messages before disconnecting")
 	sftpOptions.userStoreFile = cmdServer.Flag.String("sftp.userStoreFile", "", "path to JSON file containing user credentials and permissions")
 	sftpOptions.trustedUserCAKeysFile = cmdServer.Flag.String("sftp.trustedUserCAKeysFile", "", "path to a file with trusted user CA public keys (OpenSSH authorized_keys format); required when 'certificate' is in -sftp.authMethods")
+	sftpOptions.dataCenter = cmdServer.Flag.String("sftp.dataCenter", "", "prefer to read and write to volumes in this data center")
 	sftpOptions.localSocket = cmdServer.Flag.String("sftp.localSocket", "", "default to /tmp/seaweedfs-sftp-<port>.sock")
 	iamOptions.port = cmdServer.Flag.Int("iam.port", 8111, "iam server http listen port")
 
@@ -337,8 +339,6 @@ func runServer(cmd *Command, args []string) bool {
 	filerOptions.rack = serverRack
 	mqBrokerOptions.dataCenter = serverDataCenter
 	mqBrokerOptions.rack = serverRack
-	s3Options.dataCenter = serverDataCenter
-	sftpOptions.dataCenter = serverDataCenter
 	*filerOptions.disableHttp = *filerOptions.disableHttp || *serverDisableHttp
 	masterOptions.disableHttp = serverDisableHttp
 
diff --git a/weed/command/server_test.go b/weed/command/server_test.go
index 333e01dfc..1ad35e148 100644
--- a/weed/command/server_test.go
+++ b/weed/command/server_test.go
@@ -11,3 +11,15 @@ func TestServerFilerDisableHttpFlag(t *testing.T) {
 		t.Fatalf("-filer.disableHttp default = %q, want false", flag.DefValue)
 	}
 }
+
+func TestServerGatewayDataCenterFlags(t *testing.T) {
+	for _, name := range []string{"s3.dataCenter", "sftp.dataCenter"} {
+		flag := cmdServer.Flag.Lookup(name)
+		if flag == nil {
+			t.Fatalf("weed server does not expose -%s", name)
+		}
+		if flag.DefValue != "" {
+			t.Fatalf("-%s default = %q, want empty", name, flag.DefValue)
+		}
+	}
+}