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<div class="moz-cite-prefix">On 08/03/2014 03:01 PM, Itamar Heim
wrote:<br>
</div>
<blockquote cite="mid:53DE86F2.2070308@redhat.com" type="cite">
<pre wrap="">On 07/30/2014 10:35 PM, santosh wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hi,
*
**Can we share the iSCSI data storage domain across multiple clusters in
the same datacenter?*
Following are the setup details which I tried.
- One datacenter, Say DC1
- in DC1, two clusters, say CL1 and CL2
- In CL1, one host, say H1. And in CL2 one host, say H2
- iSCSI Data Storage domain is configured where external storage
LUNs are exported to host H1(A host in CL1 of Datacenter).
While adding H1 to CL1 is succeeded; addition of H2 in CL2 is failing
with following error in vdsm.log.
Traceback (most recent call last):
File "/usr/share/vdsm/storage/task.py", line 873, in _run
return fn(*args, **kargs)
File "/usr/share/vdsm/logUtils.py", line 45, in wrapper
res = f(*args, **kwargs)
File "/usr/share/vdsm/storage/hsm.py", line 1020, in
connectStoragePool
spUUID, hostID, msdUUID, masterVersion, domainsMap)
File "/usr/share/vdsm/storage/hsm.py", line 1091, in
_connectStoragePool
res = pool.connect(hostID, msdUUID, masterVersion)
File "/usr/share/vdsm/storage/sp.py", line 630, in connect
self.__rebuild(msdUUID=msdUUID, masterVersion=masterVersion)
File "/usr/share/vdsm/storage/sp.py", line 1153, in __rebuild
self.setMasterDomain(msdUUID, masterVersion)
File "/usr/share/vdsm/storage/sp.py", line 1360, in setMasterDomain
raise se.StoragePoolMasterNotFound(self.spUUID, msdUUID)
StoragePoolMasterNotFound: Cannot find master domain:
'spUUID=a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2,
msdUUID=741f7913-09ad-4d96-a225-3bda6d06e042'
Thread-13::DEBUG::2014-07-30
15:24:49,780::task::885::TaskManager.Task::(_run)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Task._run:
07997682-8d6b-42fd-acb3-1360f14860d6
('a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2', 2,
'741f7913-09ad-4d96-a225-3bda6d06e042', 1, None) {} failed -
stopping task
Thread-13::DEBUG::2014-07-30
15:24:49,780::task::1211::TaskManager.Task::(stop)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::stopping in state
preparing (force False)
Thread-13::DEBUG::2014-07-30
15:24:49,780::task::990::TaskManager.Task::(_decref)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::ref 1 aborting True
*Thread-13::<a class="moz-txt-link-freetext" href="INFO::2014-07-30">INFO::2014-07-30</a>
15:24:49,780::task::1168::TaskManager.Task::(prepare)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::aborting: Task is
aborted: 'Cannot find master domain' - code 304*
Thread-13::DEBUG::2014-07-30
15:24:49,781::task::1173::TaskManager.Task::(prepare)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Prepare: aborted:
Cannot find master domain
Thread-13::DEBUG::2014-07-30
15:24:49,781::task::990::TaskManager.Task::(_decref)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::ref 0 aborting True
Thread-13::DEBUG::2014-07-30
15:24:49,781::task::925::TaskManager.Task::(_doAbort)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Task._doAbort: force False
Thread-13::DEBUG::2014-07-30
15:24:49,781::resourceManager::977::ResourceManager.Owner::(cancelAll)
Owner.cancelAll requests {}
Thread-13::DEBUG::2014-07-30
15:24:49,781::task::595::TaskManager.Task::(_updateState)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::moving from state
preparing -> state aborting
Thread-13::DEBUG::2014-07-30
15:24:49,781::task::550::TaskManager.Task::(__state_aborting)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::_aborting: recover
policy none
Thread-13::DEBUG::2014-07-30
15:24:49,782::task::595::TaskManager.Task::(_updateState)
Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::moving from state
aborting -> state failed
Thread-13::DEBUG::2014-07-30
15:24:49,782::resourceManager::940::ResourceManager.Owner::(releaseAll)
Owner.releaseAll requests {} resources {}
Thread-13::DEBUG::2014-07-30
15:24:49,782::resourceManager::977::ResourceManager.Owner::(cancelAll)
Owner.cancelAll requests {}
Thread-13::ERROR::2014-07-30
15:24:49,782::dispatcher::65::Storage.Dispatcher.Protect::(run)
{'status': {'message': "Cannot find master domain:
'spUUID=a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2,
msdUUID=741f7913-09ad-4d96-a225-3bda6d06e042'", 'code': 304}}
_*Please advise if I need to have one Storage Domain per cluster in
given datacenter.*_
Thanks, Santosh.
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</pre>
</blockquote>
<pre wrap="">
no. you can access a storage domain from multiple clusters in same DC.</pre>
</blockquote>
<font color="#000066">[Santosh] That is my understanding also.</font><br>
<blockquote cite="mid:53DE86F2.2070308@redhat.com" type="cite">
<pre wrap="">
which type of storage? </pre>
</blockquote>
<font color="#000066">[Santosh] 'Storage' is of 'iSCSI' type. Domain
type is 'Data (Master)'</font><br>
<blockquote cite="mid:53DE86F2.2070308@redhat.com" type="cite">
<pre wrap="">could it be its "protecting" shared access to the DC?</pre>
</blockquote>
<font color="#000066">[Santosh] How should I find it out?</font><br>
<blockquote cite="mid:53DE86F2.2070308@redhat.com" type="cite">
<pre wrap="">
is moving the host to same cluster as the SPM resolving the issue for
you (it shouldn't)
</pre>
<font color="#000066">
</font></blockquote>
<font color="#000066">[Santosh] Moving the host to the same cluster
as that of SPM did not resolve the issue.</font><br>
<font color="#000066"><br>
<br>
Thanks for the reply.<br>
Regards, Santosh.</font><br>
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<pre>
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sole use of the intended recipient. Any unauthorized review, use or distribution
by others is strictly prohibited. If you have received the message by mistake,
please advise the sender by reply email and delete the message. Thank you."
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