diff --git a/plugin/kaytu/compute_instance.go b/plugin/kaytu/compute_instance.go
index 2c11927..f23be60 100644
--- a/plugin/kaytu/compute_instance.go
+++ b/plugin/kaytu/compute_instance.go
@@ -8,8 +8,17 @@ type GcpComputeInstance struct {
 	MachineType      string `json:"machineType"`
 }
 
+type GcpComputeDisk struct {
+	HashedDiskId string `json:"hashedDiskId"`
+	Zone         string `json:"zone"`
+	Region       string `json:"region"`
+	DiskType     string `json:"diskType"`
+	DiskSize     *int32 `json:"diskSize"`
+}
+
 type RightsizingGcpComputeInstance struct {
 	Zone          string `json:"zone"`
+	Region        string `json:"region"`
 	MachineType   string `json:"machineType"`
 	MachineFamily string `json:"machineFamily"`
 	CPU           int64  `json:"cpu"`
@@ -29,18 +38,38 @@ type GcpComputeInstanceRightsizingRecommendation struct {
 }
 
 type GcpComputeInstanceWastageRequest struct {
-	RequestId      *string                `json:"requestId"`
-	CliVersion     *string                `json:"cliVersion"`
-	Identification map[string]string      `json:"identification"`
-	Instance       GcpComputeInstance     `json:"instance"`
-	Metrics        map[string][]Datapoint `json:"metrics"`
-	Region         string                 `json:"region"`
-	Preferences    map[string]*string     `json:"preferences"`
-	Loading        bool                   `json:"loading"`
+	RequestId      *string                           `json:"requestId"`
+	CliVersion     *string                           `json:"cliVersion"`
+	Identification map[string]string                 `json:"identification"`
+	Instance       GcpComputeInstance                `json:"instance"`
+	Disks          []GcpComputeDisk                  `json:"disks"`
+	Metrics        map[string][]Datapoint            `json:"metrics"`
+	DiskMetrics    map[string]map[string][]Datapoint `json:"diskMetrics"`
+	Region         string                            `json:"region"`
+	Preferences    map[string]*string                `json:"preferences"`
+	Loading        bool                              `json:"loading"`
+}
+
+type RightsizingGcpComputeDisk struct {
+	Zone     string  `json:"zone"`
+	Region   string  `json:"region"`
+	DiskType string  `json:"diskType"`
+	DiskSize *int32  `json:"diskSize"`
+	Cost     float64 `json:"cost"`
+}
+
+type GcpComputeDiskRecommendation struct {
+	Current     RightsizingGcpComputeDisk
+	Recommended *RightsizingGcpComputeDisk
+
+	Size Usage `json:"size"`
+
+	Description string `json:"description"`
 }
 
 type GcpComputeInstanceWastageResponse struct {
-	RightSizing GcpComputeInstanceRightsizingRecommendation `json:"rightSizing"`
+	RightSizing       GcpComputeInstanceRightsizingRecommendation `json:"rightSizing"`
+	VolumeRightSizing map[string]GcpComputeDiskRecommendation     `json:"volumes"`
 }
 
 type Datapoint struct {