Merge pull request #47429 from bgaydosrh/CNV-15994

CNV-15994: Add VM snapshot metrics

Author: ousleyp

modules/virt-querying-metrics.adoc

@@ -73,6 +73,28 @@ topk(3, sum by (name, namespace) (rate(kubevirt_vmi_storage_read_traffic_bytes_t
 ----
 <1> This query returns the top 3 VMs performing the most storage traffic at every given moment over a six-minute time period.
 
+[id="virt-storage-snapshot-data_{context}"]
+=== Storage snapshot data
+
+`kubevirt_vmsnapshot_disks_restored_from_source_total`::
+Returns the total number of virtual machine disks restored from the source virtual machine.
+
+`kubevirt_vmsnapshot_disks_restored_from_source_bytes`::
+Returns the amount of space in bytes restored from the source virtual machine.
+
+.Examples of storage snapshot data queries
+[source,promql]
+----
+kubevirt_vmsnapshot_disks_restored_from_source_total{vm_name="simple-vm", vm_namespace="default"} <1>
+----
+<1> This query returns the total number of virtual machine disks restored from the source virtual machine.
+
+[source,promql]
+----
+kubevirt_vmsnapshot_disks_restored_from_source_bytes{vm_name="simple-vm", vm_namespace="default"} <1>
+----
+<1> This query returns the amount of space in bytes restored from the source virtual machine.
+
 [id="virt-iops_{context}"]
 === I/O performance