protected override void Run()
{
Exception unplugException = null;
// Only unplug and replug already plugged pbds
List <String> pluggedPBDrefs = new List <String>();
try
{
foreach (PBD pbd in host.Connection.ResolveAll(host.PBDs))
{
if (!pbd.currently_attached)
{
continue;
}
pluggedPBDrefs.Add(pbd.opaque_ref);
PBD.unplug(Session, pbd.opaque_ref);
}
// CA-19392: Multipath enablement / disablement
if (multipath)
{
Host.remove_from_other_config(Session, host.opaque_ref, Host.MULTIPATH);
Host.add_to_other_config(Session, host.opaque_ref, Host.MULTIPATH, "true");
Host.remove_from_other_config(Session, host.opaque_ref, Host.MULTIPATH_HANDLE);
Host.add_to_other_config(Session, host.opaque_ref, Host.MULTIPATH_HANDLE, DEFAULT_MULTIPATH_HANDLE);
}
else
{
Host.remove_from_other_config(Session, host.opaque_ref, Host.MULTIPATH);
Host.add_to_other_config(Session, host.opaque_ref, Host.MULTIPATH, "false");
Host.remove_from_other_config(Session, host.opaque_ref, Host.MULTIPATH_HANDLE);
}
}
catch (Exception e)
{
unplugException = e;
log.Debug("Error occurred unplugging pbds", e);
log.Debug(e, e);
throw;
}
finally
{
Exception plugException = null;
foreach (String pbdRef in pluggedPBDrefs)
{
try
{
PBD.plug(Session, pbdRef);
}
catch (Exception e)
{
if (unplugException == null && plugException == null)
{
plugException = e;
}
log.Debug("Error occurred replugging pbds", e);
log.Debug(e, e);
}
}
// Only throw a plug exception if there we no unplug exceptions
if (unplugException == null && plugException != null)
{
throw plugException;
}
}
}