Trouble with new Domain - FC storage (Error code: 5022)

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Hi.

 

I tried to add a new storage domain on RHEVM.

The storage is FC type.

I can see the LUNs but after I checked in, and I submit

the browser after few minutes waiting just display it the following error code:

Network error during communication with Host.  (Error code: 5022)

 

I checked the error counters on Hypervisor and Virtual Manager Server, both on psychical and bridge interfaces, but I didn't found anything.

 

 RX packets:147406 errors:0 dropped:0 overruns:0 frame:0
 TX packets:48240 errors:0 dropped:0 overruns:0 carrier:0

There is an 1Gb/s full duplex between the Virtual Manager Server and the Hypervisor, and they can communicate without any problem with each other.

 

What can be the problem ?

VA
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Responses

AV Red Hat Expert 879 points
19 November 2012 7:16 AM

Hi,

 

I think the operation is getting time out due to some issues at the hypervisor or at the storage. Have you noticed any I/O delay for the storage or any errors reported for the storage in /var/log/messages. How much time its taking to finish the following commands when its run from the hypervisor.

 

# time sudo lvs

# time lvs

 

If you have multiple hypervisors try adding the storage using an another hypervisor [use host drop down]

 

Thanks,

Anil

VA Active Contributor 175 points
19 November 2012 8:45 AM 
[root@rhev01 ~]# time sudo lvs
  LV      VG     Attr     LSize   Pool Origin Data%  Move Log Copy%  Convert
  Config  HostVG -wi-ao--   8.00m                                           
  Data    HostVG -wi-ao-- 113.51g                                           
  Logging HostVG -wi-ao--   2.00g                                           
  Swap    HostVG -wi-ao--  19.73g                                           

real    0m39.632s
user    0m0.102s
sys    0m0.038s
[root@rhev01 ~]# time lvs
  LV      VG     Attr     LSize   Pool Origin Data%  Move Log Copy%  Convert
  Config  HostVG -wi-ao--   8.00m                                           
  Data    HostVG -wi-ao-- 113.51g                                           
  Logging HostVG -wi-ao--   2.00g                                           
  Swap    HostVG -wi-ao--  19.73g                                           

real    0m39.331s
user    0m0.105s
sys    0m0.024s



There is 2 hypervisor but same story on both.
VA Active Contributor 175 points
19 November 2012 9:20 AM

Hi

 

 

My problem was solved !

The problem was that my controller firmware on our SAN storage, was faulty.

It didn't know the round-robin policy, and on the host was configured with it.

I just shut it down the port on each hypervisor to disable the redundant path, and everything is working like a charm :)

 

Thanks a lot for help.

David Powles's picture Red Hat 25369 points
20 November 2012 5:51 AM

I'm glad you got this resolved. Thanks for sharing the solution here.

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