def _create_san_volumes(self, n_servers, n_volumes):
"""SAN-like volume configuration with each volume connected to all servers"""
self._create_n_hosts(n_servers)
VolumeNode.objects.update(not_deleted=None)
Volume.objects.update(not_deleted=None)
for i in range(0, n_volumes):
volume = synthetic_volume()
path = "/dev/volume_%s" % volume.id
for i, host in enumerate(ManagedHost.objects.all()):
primary = i == 0
VolumeNode.objects.create(volume=volume, host=host, path=path, primary=primary)
def _create_n_volumes_host_pairs(self, n_volumes):
"""SCSI-like volume configuration with each volume connected to two servers"""
self._create_n_hosts(n_volumes / 2)
VolumeNode.objects.update(not_deleted=None)
Volume.objects.update(not_deleted=None)
for i in range(0, n_volumes):
volume = synthetic_volume()
host_1 = ManagedHost.objects.get(fqdn="fakehost_%.3d" % ((i / 2) % (n_volumes / 2)))
host_2 = ManagedHost.objects.get(fqdn="fakehost_%.3d" % ((i / 2 + 1) % (n_volumes / 2)))
assert host_1 != host_2
path = "/dev/volume_%s" % volume.id
VolumeNode.objects.create(volume=volume, host=host_1, path=path, primary=True)
VolumeNode.objects.create(volume=volume, host=host_2, path=path, primary=False)