def inspect_disk_rates(self, instance, duration=None):
vm_moid = self._ops.get_vm_moid(instance.id)
if not vm_moid:
raise virt_inspector.InstanceNotFoundException(
'VM %s not found in VMware Vsphere' % instance.id)
disk_stats = {}
disk_ids = set()
disk_counters = [
VC_DISK_READ_RATE_CNTR, VC_DISK_READ_REQUESTS_RATE_CNTR,
VC_DISK_WRITE_RATE_CNTR, VC_DISK_WRITE_REQUESTS_RATE_CNTR
]
for disk_counter in disk_counters:
disk_counter_id = self._ops.get_perf_counter_id(disk_counter)
disk_id_to_stat_map = self._ops.query_vm_device_stats(
vm_moid, disk_counter_id, duration)
disk_stats[disk_counter] = disk_id_to_stat_map
disk_ids.update(disk_id_to_stat_map.iterkeys())
for disk_id in disk_ids:
def stat_val(counter_name):
return disk_stats[counter_name].get(disk_id, 0)
disk = virt_inspector.Disk(device=disk_id)
# Stats provided from vSphere are in KB/s, converting it to B/s.
disk_rate_info = virt_inspector.DiskRateStats(
read_bytes_rate=stat_val(VC_DISK_READ_RATE_CNTR) * units.Ki,
read_requests_rate=stat_val(VC_DISK_READ_REQUESTS_RATE_CNTR),
write_bytes_rate=stat_val(VC_DISK_WRITE_RATE_CNTR) * units.Ki,
write_requests_rate=stat_val(VC_DISK_WRITE_REQUESTS_RATE_CNTR))
yield (disk, disk_rate_info)
def inspect_disk_rates(self, instance, duration=None):
instance_name = get_instance_name(instance)
vm_ref = self._lookup_by_name(instance_name)
vbd_refs = self._call_xenapi("VM.get_VBDs", vm_ref)
if vbd_refs:
for vbd_ref in vbd_refs:
vbd_rec = self._call_xenapi("VBD.get_record", vbd_ref)
vbd_metrics_ref = self._call_xenapi("VBD.get_metrics", vbd_ref)
vbd_metrics_rec = self._call_xenapi("VBD_metrics.get_record",
vbd_metrics_ref)
disk = virt_inspector.Disk(device=vbd_rec['device'])
# Stats provided from XenServer are in KB/s,
# converting it to B/s.
read_rate = float(vbd_metrics_rec['io_read_kbs']) * units.Ki
write_rate = float(vbd_metrics_rec['io_write_kbs']) * units.Ki
disk_rate_info = virt_inspector.DiskRateStats(
read_bytes_rate=read_rate,
read_requests_rate=0,
write_bytes_rate=write_rate,
write_requests_rate=0)
yield (disk, disk_rate_info)