For this particular host I already updated the rpm package
vdsm-4.10.3-0.50.gitc6625ce.fc18.x86_64

that contains the patched file /usr/share/vdsm/storage/localFsSD.py so it seems I'm not hitting this problem.

I ran
yum update ovirt-engine-setup

that pulled these new packages

Jan 07 08:06:27 Updated: ovirt-engine-setup-3.2.0-1.20130106.git0cb01e1.fc18.noarch
Jan 07 08:08:53 Updated: otopi-0.0.0-0.5.master.20130106.git0a731eb.fc18.noarch
Jan 07 08:08:54 Updated: otopi-java-0.0.0-0.5.master.20130106.git0a731eb.fc18.noarch
Jan 07 08:08:54 Updated: ovirt-host-deploy-0.0.0-0.0.master.20130106.gitaa0edd4.fc18.noarch
Jan 07 08:08:54 Updated: ovirt-host-deploy-offline-0.0.0-0.0.master.20130106.gitaa0edd4.fc18.noarch
Jan 07 08:08:54 Updated: ovirt-engine-setup-plugin-allinone-3.2.0-1.20130106.git0cb01e1.fc18.noarch
Jan 07 08:08:54 Updated: ovirt-host-deploy-java-0.0.0-0.0.master.20130106.gitaa0edd4.fc18.noarch
Jan 07 08:08:55 Updated: ovirt-engine-cli-3.2.0.8-1.20130106.git0b16093.fc18.noarch

Then engine-upgrade and reboot but still not able to activate storage domain

In vdsm.log
Thread-20::DEBUG::2013-01-07 19:57:41,148::BindingXMLRPC::163::vds::(wrapper) [10.194.53.246]
Thread-20::DEBUG::2013-01-07 19:57:41,149::task::568::TaskManager.Task::(_updateState) Task=`133ef0a7-30ac-4cad-94ee-276dd59731e0`::moving from state init -> state preparing
Thread-20::INFO::2013-01-07 19:57:41,149::logUtils::41::dispatcher::(wrapper) Run and protect: getSpmStatus(spUUID='a6e0d929-065b-4f69-a46a-0b07d3b79731', options=None)
Thread-20::ERROR::2013-01-07 19:57:41,150::task::833::TaskManager.Task::(_setError) Task=`133ef0a7-30ac-4cad-94ee-276dd59731e0`::Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 840, in _run
    return fn(*args, **kargs)
  File "/usr/share/vdsm/logUtils.py", line 42, in wrapper
    res = f(*args, **kwargs)
  File "/usr/share/vdsm/storage/hsm.py", line 602, in getSpmStatus
    pool = self.getPool(spUUID)
  File "/usr/share/vdsm/storage/hsm.py", line 312, in getPool
    raise se.StoragePoolUnknown(spUUID)
StoragePoolUnknown: Unknown pool id, pool not connected: ('a6e0d929-065b-4f69-a46a-0b07d3b79731',)
Thread-20::DEBUG::2013-01-07 19:57:41,153::task::852::TaskManager.Task::(_run) Task=`133ef0a7-30ac-4cad-94ee-276dd59731e0`::Task._run: 133ef0a7-30ac-4cad-94ee-276dd59731e0 ('a6e0d929-065b-4f69-a46a-0b07d3b79731',) {} failed - stopping task
Thread-20::DEBUG::2013-01-07 19:57:41,154::task::1177::TaskManager.Task::(stop) Task=`133ef0a7-30ac-4cad-94ee-276dd59731e0`::stopping in state preparing (force False)
Thread-20::DEBUG::2013-01-07 19:57:41,154::task::957::TaskManager.Task::(_decref) Task=`133ef0a7-30ac-4cad-94ee-276dd59731e0`::ref 1 aborting True

while in engine.log
2013-01-07 19:57:33,782 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.VdsBrokerCommand] (QuartzScheduler_Worker-2) XML RPC error in command GetHardwareInfoVDS ( HostName = local_host ), the error was: java.util.concurrent.ExecutionException: java.lang.reflect.InvocationTargetException, <type 'exceptions.Exception'>:method "getVdsHardwareInfo" is not supported
2013-01-07 19:57:33,783 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.GetHardwareInfoVDSCommand] (QuartzScheduler_Worker-2) FINISH, GetHardwareInfoVDSCommand, log id: 5f98da5d
2013-01-07 19:57:33,795 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (QuartzScheduler_Worker-2) Cannot convert string <<<<<<< to AuditLogType
...
2013-01-07 19:57:33,800 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (QuartzScheduler_Worker-2) AuditLogType: DWH_ERROR not exist in string table
2013-01-07 19:57:33,800 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (QuartzScheduler_Worker-2) AuditLogType: EXTERNAL_EVENT_NORMAL not exist in string table
2013-01-07 19:57:33,800 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (QuartzScheduler_Worker-2) AuditLogType: EXTERNAL_EVENT_WARNING not exist in string table
2013-01-07 19:57:33,801 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (QuartzScheduler_Worker-2) AuditLogType: EXTERNAL_EVENT_ERROR not exist in string table
...
2013-01-07 19:57:46,007 ERROR [org.ovirt.engine.core.vdsbroker.VDSCommandBase] (QuartzScheduler_Worker-8) Command ConnectStoragePoolVDS execution failed. Exception: IRSNoMasterDomainException: IRSGenericException: IRSErrorException: IRSNoMasterDomainException: Cannot find master domain: 'spUUID=a6e0d929-065b-4f69-a46a-0b07d3b79731, msdUUID=eb9d38ff-34d6-4dd9-8309-b004f02ee510'
2013-01-07 19:57:46,010 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand] (QuartzScheduler_Worker-8) FINISH, ConnectStoragePoolVDSCommand, log id: 2f2957ee
2013-01-07 19:57:46,011 ERROR [org.ovirt.engine.core.vdsbroker.irsbroker.IrsBrokerCommand] (QuartzScheduler_Worker-8) IrsBroker::Failed::GetStoragePoolInfoVDS
2013-01-07 19:57:46,011 ERROR [org.ovirt.engine.core.vdsbroker.irsbroker.IrsBrokerCommand] (QuartzScheduler_Worker-8) Exception: IRSGenericException: IRSErrorException: IRSNoMasterDomainException: Cannot find master domain: 'spUUID=a6e0d929-065b-4f69-a46a-0b07d3b79731, msdUUID=eb9d38ff-34d6-4dd9-8309-b004f02ee510'
2013-01-07 19:57:46,236 INFO  [org.ovirt.engine.core.bll.storage.ReconstructMasterDomainCommand] (pool-3-thread-19) [47e9e14a] Running command: ReconstructMasterDomainCommand internal: true. Entities affected :  ID: eb9d38ff-34d6-4dd9-8309-b004f02ee510 Type: Storage
2013-01-07 19:57:46,358 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.MarkPoolInReconstructModeVDSCommand] (pool-3-thread-19) [47e9e14a] START, MarkPoolInReconstructModeVDSCommand( storagePoolId = a6e0d929-065b-4f69-a46a-0b07d3b79731, ignoreFailoverLimit = false, compatabilityVersion = null, reconstructMarkAction = ClearCache), log id: 768a1787
2013-01-07 19:57:46,361 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.IrsBrokerCommand] (pool-3-thread-19) [47e9e14a] clearing cache for problematic entities in pool a6e0d929-065b-4f69-a46a-0b07d3b79731
2013-01-07 19:57:46,363 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.MarkPoolInReconstructModeVDSCommand] (pool-3-thread-19) [47e9e14a] FINISH, MarkPoolInReconstructModeVDSCommand, log id: 768a1787
2013-01-07 19:57:46,438 INFO  [org.ovirt.engine.core.bll.eventqueue.EventQueueMonitor] (pool-3-thread-18) Finished reconstruct for pool a6e0d929-065b-4f69-a46a-0b07d3b79731. Clearing all event queue
2013-01-07 19:57:56,131 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.IrsBrokerCommand] (QuartzScheduler_Worker-22) hostFromVds::selectedVds - local_host, spmStatus Unknown_Pool, storage pool local_datacenter
2013-01-07 19:57:56,153 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand] (QuartzScheduler_Worker-22) START, ConnectStoragePoolVDSCommand(HostName = local_host, HostId = 919c3ca3-980f-425f-a97d-778c9cd076ca, storagePoolId = a6e0d929-065b-4f69-a46a-0b07d3b79731, vds_spm_id = 1, masterDomainId = eb9d38ff-34d6-4dd9-8309-b004f02ee510, masterVersion = 1), log id: 56c65032
2013-01-07 19:58:00,669 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase] (QuartzScheduler_Worker-22) Command org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand return value
 Class Name: org.ovirt.engine.core.vdsbroker.vdsbroker.StatusOnlyReturnForXmlRpc
mStatus                       Class Name: org.ovirt.engine.core.vdsbroker.vdsbroker.StatusForXmlRpc
mCode                         304
mMessage                      Cannot find master domain: 'spUUID=a6e0d929-065b-4f69-a46a-0b07d3b79731, msdUUID=eb9d38ff-34d6-4dd9-8309-b004f02ee510'


2013-01-07 19:58:00,671 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase] (QuartzScheduler_Worker-22) HostName = local_host
2013-01-07 19:58:00,671 ERROR [org.ovirt.engine.core.vdsbroker.VDSCommandBase] (QuartzScheduler_Worker-22) Command ConnectStoragePoolVDS execution failed. Exception: IRSNoMasterDomainException: IRSGenericException: IRSErrorException: IRSNoMasterDomainException: Cannot find master domain: 'spUUID=a6e0d929-065b-4f69-a46a-0b07d3b79731, msdUUID=eb9d38ff-34d6-4dd9-8309-b004f02ee510'

Could it be that this host, that is a PC with 6Gb of ram and Opteron processor
model name    : AMD Athlon(tm) II X4 630 Processor

gets its ip by dhcp?

At this moment
[root@tekkaman ovirt-engine]# ip addr list
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: p10p1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovirtmgmt state UP qlen 1000
    link/ether 90:e6:ba:c9:f1:e1 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::92e6:baff:fec9:f1e1/64 scope link
       valid_lft forever preferred_lft forever
4: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
    link/ether 90:e6:ba:c9:f1:e1 brd ff:ff:ff:ff:ff:ff
    inet 10.194.53.246/20 brd 10.194.63.255 scope global ovirtmgmt
    inet6 fe80::92e6:baff:fec9:f1e1/64 scope link
       valid_lft forever preferred_lft forever
6: ;vdsmdummy;: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
    link/ether 12:1a:6c:ef:c0:fc brd ff:ff:ff:ff:ff:ff
7: bond0: <NO-CARRIER,BROADCAST,MULTICAST,MASTER,UP> mtu 1500 qdisc noqueue state DOWN
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
8: bond4: <NO-CARRIER,BROADCAST,MULTICAST,MASTER,UP> mtu 1500 qdisc noqueue state DOWN
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
[root@tekkaman ovirt-engine]# ip route list
default via 10.194.48.1 dev ovirtmgmt
10.194.48.0/20 dev ovirtmgmt  proto kernel  scope link  src 10.194.53.246
169.254.0.0/16 dev ovirtmgmt  scope link  metric 1004

Gianluca