diff --git a/accounting/grpc/service.pb.go b/accounting/grpc/service.pb.go
index 357547e..bbaefff 100644
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diff --git a/accounting/grpc/service_grpc.pb.go b/accounting/grpc/service_grpc.pb.go
index 8ed1956..0f4d18d 100644
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diff --git a/accounting/grpc/types.pb.go b/accounting/grpc/types.pb.go
index 016bdc2..7628708 100644
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diff --git a/acl/grpc/types.pb.go b/acl/grpc/types.pb.go
index cf8114e..9bfca6a 100644
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diff --git a/audit/grpc/types.pb.go b/audit/grpc/types.pb.go
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diff --git a/container/grpc/service.pb.go b/container/grpc/service.pb.go
index 390261e..78f8825 100644
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diff --git a/container/grpc/service_grpc.pb.go b/container/grpc/service_grpc.pb.go
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diff --git a/container/grpc/types.pb.go b/container/grpc/types.pb.go
index 269cfb4..d8dd62f 100644
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diff --git a/lock/grpc/types.pb.go b/lock/grpc/types.pb.go
index 0a560ec..d118ca8 100644
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diff --git a/netmap/grpc/service.pb.go b/netmap/grpc/service.pb.go
index 93b19ba..c200940 100644
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diff --git a/netmap/grpc/service_grpc.pb.go b/netmap/grpc/service_grpc.pb.go
index 1ee6b92..e27cd2c 100644
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diff --git a/netmap/grpc/types.pb.go b/netmap/grpc/types.pb.go
index 53c601d..a5fd6e5 100644
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diff --git a/netmap/types.go b/netmap/types.go
index cc190af..122dda1 100644
--- a/netmap/types.go
+++ b/netmap/types.go
@@ -94,6 +94,7 @@ const (
 	UnspecifiedState NodeState = iota
 	Online
 	Offline
+	Maintenance
 )
 
 const (
diff --git a/object/grpc/service.pb.go b/object/grpc/service.pb.go
index b282895..7f15f44 100644
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diff --git a/object/grpc/types.pb.go b/object/grpc/types.pb.go
index 83a37ba..e1243b5 100644
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diff --git a/refs/grpc/types.pb.go b/refs/grpc/types.pb.go
index 12716d1..be27e87 100644
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diff --git a/reputation/grpc/service.pb.go b/reputation/grpc/service.pb.go
index 719ad5c..83317ee 100644
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diff --git a/reputation/grpc/service_grpc.pb.go b/reputation/grpc/service_grpc.pb.go
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diff --git a/reputation/grpc/types.pb.go b/reputation/grpc/types.pb.go
index 2c6253f..ff66869 100644
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diff --git a/session/grpc/service.pb.go b/session/grpc/service.pb.go
index b8a93cf..15b645e 100644
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diff --git a/session/grpc/service_grpc.pb.go b/session/grpc/service_grpc.pb.go
index 705c439..a596be4 100644
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diff --git a/session/grpc/types.pb.go b/session/grpc/types.pb.go
index 0d76bdf..1fa22f0 100644
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diff --git a/status/grpc/types.pb.go b/status/grpc/types.pb.go
index c18467c..64b257e 100644
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diff --git a/status/status.go b/status/status.go
index f300d5e..c1b5272 100644
--- a/status/status.go
+++ b/status/status.go
@@ -61,6 +61,8 @@ const (
 	WrongMagicNumber
 	// SignatureVerificationFail is a local Code value for SIGNATURE_VERIFICATION_FAIL status.
 	SignatureVerificationFail
+	// NodeUnderMaintenance is a local Code value for NODE_UNDER_MAINTENANCE status.
+	NodeUnderMaintenance
 )
 
 const (
diff --git a/storagegroup/grpc/types.pb.go b/storagegroup/grpc/types.pb.go
index de7570a..1cfe99c 100644
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diff --git a/subnet/grpc/types.pb.go b/subnet/grpc/types.pb.go
index 10e2e95..2bec81d 100644
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diff --git a/tombstone/grpc/types.pb.go b/tombstone/grpc/types.pb.go
index 747532b..d971da2 100644
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diff --git a/util/proto/test/test.pb.go b/util/proto/test/test.pb.go
index edefcc3..6ac0c67 100644
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