diff --git a/cmd/metal-api/internal/service/partition-service.go b/cmd/metal-api/internal/service/partition-service.go
index 6d6bc0636..43bad6fba 100644
--- a/cmd/metal-api/internal/service/partition-service.go
+++ b/cmd/metal-api/internal/service/partition-service.go
@@ -353,10 +353,12 @@ func (r partitionResource) calcPartitionCapacity() ([]v1.PartitionCapacity, erro
 				cap.Allocated++
 			} else if machineHasIssues(m) {
 				cap.Faulty++
+				cap.FaultyMachines = append(cap.FaultyMachines, m.ID)
 			} else if available {
 				cap.Free++
 			} else {
 				cap.Other++
+				cap.OtherMachines = append(cap.OtherMachines, m.ID)
 			}
 
 			cap.Total++
diff --git a/cmd/metal-api/internal/service/v1/partition.go b/cmd/metal-api/internal/service/v1/partition.go
index 78501d469..b8e8e9abf 100644
--- a/cmd/metal-api/internal/service/v1/partition.go
+++ b/cmd/metal-api/internal/service/v1/partition.go
@@ -40,12 +40,14 @@ type PartitionCapacity struct {
 }
 
 type ServerCapacity struct {
-	Size      string `json:"size" description:"the size of the server"`
-	Total     int    `json:"total" description:"total amount of servers with this size"`
-	Free      int    `json:"free" description:"free servers with this size"`
-	Allocated int    `json:"allocated" description:"allocated servers with this size"`
-	Faulty    int    `json:"faulty" description:"servers with issues with this size"`
-	Other     int    `json:"other" description:"servers neither free, allocated or faulty with this size"`
+	Size           string   `json:"size" description:"the size of the server"`
+	Total          int      `json:"total" description:"total amount of servers with this size"`
+	Free           int      `json:"free" description:"free servers with this size"`
+	Allocated      int      `json:"allocated" description:"allocated servers with this size"`
+	Faulty         int      `json:"faulty" description:"servers with issues with this size"`
+	FaultyMachines []string `json:"faultymachines" description:"servers with issues with this size"`
+	Other          int      `json:"other" description:"servers neither free, allocated or faulty with this size"`
+	OtherMachines  []string `json:"othermachines" description:"servers neither free, allocated or faulty with this size"`
 }
 
 func NewPartitionResponse(p *metal.Partition) *PartitionResponse {
diff --git a/spec/metal-api.json b/spec/metal-api.json
index 1e9f8821f..8baae7bee 100644
--- a/spec/metal-api.json
+++ b/spec/metal-api.json
@@ -2558,6 +2558,13 @@
           "format": "int32",
           "type": "integer"
         },
+        "faultymachines": {
+          "description": "servers with issues with this size",
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
         "free": {
           "description": "free servers with this size",
           "format": "int32",
@@ -2568,6 +2575,13 @@
           "format": "int32",
           "type": "integer"
         },
+        "othermachines": {
+          "description": "servers neither free, allocated or faulty with this size",
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
         "size": {
           "description": "the size of the server",
           "type": "string"
@@ -2581,8 +2595,10 @@
       "required": [
         "allocated",
         "faulty",
+        "faultymachines",
         "free",
         "other",
+        "othermachines",
         "size",
         "total"
       ]