public static void CheckPlugPBDsForVMs(IXenConnection connection, List <XenRef <VM> > vmRefs, bool ignoreFailure = false)
{
var pbds = new List <PBD>();
foreach (XenRef <VM> vmRef in vmRefs)
{
VM vm = connection.TryResolveWithTimeout(vmRef);
foreach (var vbdRef in vm.VBDs)
{
var vbd = connection.Resolve(vbdRef);
if (vbd == null)
{
continue;
}
VDI vdi = connection.Resolve(vbd.VDI);
if (vdi == null)
{
continue;
}
SR sr = connection.Resolve(vdi.SR);
if (sr == null)
{
continue;
}
foreach (var pbdRef in sr.PBDs)
{
var pbd = connection.Resolve(pbdRef);
if (pbd != null && !pbds.Contains(pbd))
{
pbds.Add(pbd);
}
}
}
}
foreach (PBD pbd in pbds)
{
Session session = pbd.Connection.DuplicateSession();
log.DebugFormat("Waiting for PBDs {0} to become plugged", pbd.Name());
// Wait 2 min for PBD to become plugged
if (WaitForPlug(session, pbd.opaque_ref))
{
continue;
}
// if it's still unplugged, try plugging it - this will probably
// fail, but at least we'll get a better error message.
try
{
log.DebugFormat("Plugging PBD {0}", pbd.Name());
plug(session, pbd.opaque_ref);
}
catch (Exception e)
{
log.Debug(string.Format("Error plugging PBD {0}", pbd.Name()), e);
if (!ignoreFailure)
{
throw;
}
}
}
}