// Get the path counts from the Multipath Boot From SAN feature (see PR-1034 and CP-1696).
// Returns true if the Host.other_config contains the multipathed and mpath-boot keys,
// and the mpath-boot key is parseable. In this case, current and max will contain the result;
// otherwise they will contain zero.
public bool GetBootPathCounts(out int current, out int max)
{
current = max = 0;
return(BoolKey(other_config, "multipathed") &&
other_config.ContainsKey("mpath-boot") &&
PBD.ParsePathCounts(other_config["mpath-boot"], out current, out max));
}
private bool CheckMultipathString(String status)
{
int current;
int max;
if (!PBD.ParsePathCounts(status, out current, out max))
{
return(true);
}
return(current >= max);
}
public Dictionary <PBD, String> GetMultiPathStatusLunPerSR()
{
Dictionary <PBD, String> result =
new Dictionary <PBD, String>();
if (Connection == null)
{
return(result);
}
foreach (PBD pbd in Connection.ResolveAll(PBDs))
{
if (!pbd.MultipathActive())
{
continue;
}
String status = String.Empty;
foreach (KeyValuePair <String, String> kvp in pbd.other_config)
{
if (!kvp.Key.StartsWith(MPATH))
{
continue;
}
status = kvp.Value;
break;
}
int current;
int max;
if (!PBD.ParsePathCounts(status, out current, out max))
{
continue;
}
result[pbd] = status;
}
return(result);
}
public Dictionary <VM, Dictionary <VDI, String> > GetMultiPathStatusLunPerVDI()
{
Dictionary <VM, Dictionary <VDI, String> > result =
new Dictionary <VM, Dictionary <VDI, String> >();
if (Connection == null)
{
return(result);
}
foreach (PBD pbd in Connection.ResolveAll(PBDs))
{
if (!pbd.MultipathActive())
{
continue;
}
foreach (KeyValuePair <String, String> kvp in pbd.other_config)
{
if (!kvp.Key.StartsWith(MPATH))
{
continue;
}
int current;
int max;
if (!PBD.ParsePathCounts(kvp.Value, out current, out max))
{
continue;
}
String scsiIdKey = String.Format("scsi-{0}", kvp.Key.Substring(MPATH.Length + 1));
if (!sm_config.ContainsKey(scsiIdKey))
{
continue;
}
String vdiUUID = sm_config[scsiIdKey];
VDI vdi = null;
foreach (VDI candidate in Connection.ResolveAll(VDIs))
{
if (candidate.uuid != vdiUUID)
{
continue;
}
vdi = candidate;
break;
}
if (vdi == null)
{
continue;
}
foreach (VBD vbd in Connection.ResolveAll(vdi.VBDs))
{
VM vm = Connection.Resolve(vbd.VM);
if (vm == null)
{
continue;
}
if (vm.power_state != vm_power_state.Running)
{
continue;
}
if (!result.ContainsKey(vm))
{
result[vm] = new Dictionary <VDI, String>();
}
result[vm][vdi] = kvp.Value;
}
}
}
return(result);
}