/// <summary>
/// Remove the IP address from the given PIF.
/// </summary>
private static void ClearIP(AsyncAction action, PIF pif, int hi)
{
// if the network is used by clustering, then we don't remove the IP address
if (pif.IsUsedByClustering())
{
return;
}
log.DebugFormat("Removing IP address from {0} {1}...", pif.Name(), pif.uuid);
action.Description = string.Format(Messages.ACTION_CHANGE_NETWORKING_BRINGING_DOWN, pif.Name());
action.RelatedTask = PIF.async_reconfigure_ip(action.Session, pif.opaque_ref, ip_configuration_mode.None, "", "", "", "");
action.PollToCompletion(action.PercentComplete, hi);
action.Description = string.Format(Messages.ACTION_CHANGE_NETWORKING_BRINGING_DOWN_DONE, pif.Name());
log.DebugFormat("Removed IP address from {0} {1}.", pif.Name(), pif.uuid);
}
/// <summary>
/// Disable clustering on the host (if the network is used by clustering), before changing the management interface;
/// Before disabling clustering we also unplug all the GFS2 SRs
/// </summary>
private void DisableClustering(PIF pif, out List <PBD> gfs2Pbds)
{
gfs2Pbds = new List <PBD>();
if (!pif.IsUsedByClustering())
{
return;
}
var host = Connection.Resolve(pif.host);
if (host == null)
{
return;
}
var clusterHost = Connection.Cache.Cluster_hosts.FirstOrDefault(c => c.host.opaque_ref == host.opaque_ref);
if (clusterHost == null)
{
return;
}
// unplug the GFS2 SRs, saving the list of the PBDs unplugged, to plug back later
foreach (var pbd in Connection.ResolveAll(host.PBDs).Where(pbd => pbd.currently_attached))
{
var sr = Connection.Resolve(pbd.SR);
if (sr != null && sr.GetSRType(true) == SR.SRTypes.gfs2)
{
gfs2Pbds.Add(pbd);
Description = string.Format(Messages.ACTION_SR_DETACHING, sr.Name(), host.Name());
PBD.unplug(Session, pbd.opaque_ref);
}
}
// disable clustering
Description = string.Format(Messages.DISABLING_CLUSTERING_ON_POOL, host.Name());
log.Debug(Description);
Cluster_host.disable(Session, clusterHost.opaque_ref);
}
/// <summary>
/// Enable clustering on the host (if the network is used by clustering), after the management interface has been changed;
/// After enabling clustering we also plug back all the GFS2 SRs that we unplugged
/// </summary>
private void EnableClustering(PIF pif, List <PBD> gfs2Pbds)
{
if (!pif.IsUsedByClustering())
{
return;
}
var host = Connection.Resolve(pif.host);
if (host == null)
{
return;
}
var clusterHost = Connection.Cache.Cluster_hosts.FirstOrDefault(c => c.host.opaque_ref == host.opaque_ref);
if (clusterHost == null)
{
return;
}
Description = string.Format(Messages.ENABLING_CLUSTERING_ON_POOL, host.Name());
log.Debug(Description);
PIF.set_disallow_unplug(Session, pif.opaque_ref, true);
Cluster_host.enable(Session, clusterHost.opaque_ref);
// plug the GFS2 SRs
foreach (var pbd in gfs2Pbds.Where(pbd => !pbd.currently_attached))
{
var sr = Connection.Resolve(pbd.SR);
if (sr != null)
{
Description = string.Format(Messages.ACTION_SR_ATTACHING_TITLE, sr.Name(), host.Name());
}
PBD.plug(Session, pbd.opaque_ref);
}
}
