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		  | chandu.yalamanchili | 
		  
		    
			  
				 Posted: Wed Jul 14, 2010 1:21 pm    Post subject: Multi Instance Queue Manager NFS on Netapp | 
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		   Apprentice
 
 Joined: 29 Jun 2007 Posts: 29
  
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				Has anyone used netapp as the NFS for the multi instance Queue Manager setup. when I attempt to test the concurrent writes on both the servers seeing the below error
 
 
-bash-3.2$ amqmfsck -c /files1/ha
 
Start a second copy of this program with the same parameters on another server.
 
Writing to test file. This will normally complete within about 60 seconds.
 
.........
 
AMQ5667: Error executing system call 'fcntl(F_SETLKW)[c]' on file
 
'/files1/ha/amqmfsck.wrt', errno 121 ('Remote I/O error').
 
 
seeing the same error on both the servers. Can anyone shed some light on this?
 
 
Thanks
 
Chandu | 
			   
			 
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		  | bruce2359 | 
		  
		    
			  
				 Posted: Wed Jul 14, 2010 1:33 pm    Post subject:  | 
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		    Poobah
 
 Joined: 05 Jan 2008 Posts: 9486 Location: US: west coast, almost. Otherwise, enroute. 
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	| when I attempt to test the concurrent writes on both the servers | 
   
 
 
What do you mean by concurrent writes?  Are you expecting both qmgrs to update the same filesystem concurrently? _________________ I like deadlines. I like to wave as they pass by.
 
ב''ה
 
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. | 
			   
			 
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		  | mqjeff | 
		  
		    
			  
				 Posted: Wed Jul 14, 2010 1:38 pm    Post subject:  | 
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		   Grand Master
 
 Joined: 25 Jun 2008 Posts: 17447
  
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				Have you configured netapp to provide NFS *V4*?
 
 
You have to use NFS V4 to use multi-instance. | 
			   
			 
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		  | bruce2359 | 
		  
		    
			  
				 Posted: Wed Jul 14, 2010 1:41 pm    Post subject:  | 
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		    Poobah
 
 Joined: 05 Jan 2008 Posts: 9486 Location: US: west coast, almost. Otherwise, enroute. 
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				Are you following some document from IBM that tells you how to implement MI? _________________ I like deadlines. I like to wave as they pass by.
 
ב''ה
 
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. | 
			   
			 
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		  | chandu.yalamanchili | 
		  
		    
			  
				 Posted: Wed Jul 14, 2010 1:41 pm    Post subject:  | 
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		   Apprentice
 
 Joined: 29 Jun 2007 Posts: 29
  
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				Thanks for your replies. I'm using NFS version 4 on netapp. 
 
 
I did mount from both the servers to the shared disk. Testing the concurrent writes on to the shared disk from the servers.
 
 
Thanks
 
Chandu | 
			   
			 
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		  | chandu.yalamanchili | 
		  
		    
			  
				 Posted: Wed Jul 14, 2010 1:44 pm    Post subject:  | 
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		   Apprentice
 
 Joined: 29 Jun 2007 Posts: 29
  
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		  | bruce2359 | 
		  
		    
			  
				 Posted: Wed Jul 14, 2010 2:57 pm    Post subject:  | 
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		    Poobah
 
 Joined: 05 Jan 2008 Posts: 9486 Location: US: west coast, almost. Otherwise, enroute. 
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		  | chandu.yalamanchili | 
		  
		    
			  
				 Posted: Wed Jul 14, 2010 4:06 pm    Post subject:  | 
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		   Apprentice
 
 Joined: 29 Jun 2007 Posts: 29
  
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				This Doc has bit more information. Will try as per the doc and let you know.
 
 
Thanks Bruce | 
			   
			 
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		  | chandu.yalamanchili | 
		  
		    
			  
				 Posted: Wed Jul 21, 2010 11:48 am    Post subject:  | 
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		   Apprentice
 
 Joined: 29 Jun 2007 Posts: 29
  
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				I did try doing as per the http://www.ibm.com/developerworks/websphere/library/techarticles/1006_sampige/1006_sampige.html 
 
 
but still not having success. stuck at this error
 
 
bash-3.2$ amqmfsck -c /files1/ha
 
Start a second copy of this program with the same parameters on another server.
 
Writing to test file. This will normally complete within about 60 seconds.
 
.........
 
AMQ5667: Error executing system call 'fcntl(F_SETLKW)[c]' on file
 
'/files1/ha/amqmfsck.wrt', errno 121 ('Remote I/O error').
 
 
when tried to create a queue manager on the shared disk getting no responce from the shared disk. Any light on this?
 
 
Thanks
 
Chandu | 
			   
			 
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		  | jeevan | 
		  
		    
			  
				 Posted: Wed Jul 21, 2010 5:01 pm    Post subject:  | 
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		   Grand Master
 
 Joined: 12 Nov 2005 Posts: 1432
  
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	| chandu.yalamanchili wrote: | 
   
  
	I did try doing as per the http://www.ibm.com/developerworks/websphere/library/techarticles/1006_sampige/1006_sampige.html 
 
 
but still not having success. stuck at this error
 
 
bash-3.2$ amqmfsck -c /files1/ha
 
Start a second copy of this program with the same parameters on another server.
 
Writing to test file. This will normally complete within about 60 seconds.
 
.........
 
AMQ5667: Error executing system call 'fcntl(F_SETLKW)[c]' on file
 
'/files1/ha/amqmfsck.wrt', errno 121 ('Remote I/O error').
 
 
when tried to create a queue manager on the shared disk getting no responce from the shared disk. Any light on this?
 
 
Thanks
 
Chandu | 
   
 
 
 
If the storage is NFSv4, it should work. We used GPFS so I do not know about NFS but again it is IBM recommendated so it should work. 
 
 
I suspect the storage has not been correctly setup. I am not a hardware person, so I can not tell you but I can tell certainly that is it storage setup issue not a MQ issue. 
 
 
We have setup and using ( went live last week) MI qmgr.  
 
 
Thanks
  Last edited by jeevan on Wed Jul 21, 2010 5:09 pm; edited 2 times in total | 
			   
			 
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		  | mvic | 
		  
		    
			  
				 Posted: Wed Jul 21, 2010 5:04 pm    Post subject: Re: Multi Instance Queue Manager NFS on Netapp | 
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		    Jedi
 
 Joined: 09 Mar 2004 Posts: 2080
  
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	| chandu.yalamanchili wrote: | 
   
  
	| errno 121 ('Remote I/O error'). | 
   
 
 
Raise this with Netapp.  The error originates in the layers below the OS. | 
			   
			 
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