Hi Wahyu,
I guess that the warnings related to FCoE are not that important. I forgot to mention, that the images of the virtual machines are on the physical server.
Thanks & Regards,
Peter
On 03/01/2012 01:02 AM, Wahyu Darmawan wrote:
Hi Peter,
I saw from your log message that you've lost connection to the storage device which you use in the server machine. My suggestion is please examine the connection between server and storage. CMIIW.
Rgds, Wahyu
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-----Original Message----- From: Peter Hopfgartnerpeter.hopfgartner@r3-gis.com Sender: centos-virt-bounces@centos.org Date: Wed, 29 Feb 2012 08:53:09 To: Discussion about the virtualization on CentOScentos-virt@centos.org Reply-To: Discussion about the virtualization on CentOS centos-virt@centos.org Subject: [CentOS-virt] Guests pausing suddenly
We have a CentOS 6.2 server with KVM. That server hosts 2 virtual machines, both with Centos 6.2, too.
Regularly, one or both of the virtual machines pass to state "pause" without apparent reason. On resume, I do get have messages, like the following in /var/log/messages.
Feb 28 21:50:45 achernar fcoemon: Failed to connect to lldpad Feb 29 08:23:56 achernar kernel: sd 0:0:0:0: [sda] Unhandled error code Feb 29 08:23:56 achernar kernel: sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT Feb 29 08:23:56 achernar kernel: sd 0:0:0:0: [sda] CDB: Write(10): 2a 00 06 db 70 78 00 00 38 00 Feb 29 08:23:56 achernar kernel: end_request: I/O error, dev sda, sector 115044472 Feb 29 08:23:56 achernar kernel: Buffer I/O error on device dm-0, logical block 14252047 Feb 29 08:23:56 achernar kernel: lost page write due to I/O error on dm-0 Feb 29 08:23:56 achernar kernel: Buffer I/O error on device dm-0, logical block 14252048 Feb 29 08:23:56 achernar kernel: lost page write due to I/O error on dm-0 Feb 29 08:23:56 achernar kernel: Buffer I/O error on device dm-0, logical block 14252049 Feb 29 08:23:56 achernar kernel: lost page write due to I/O error on dm-0 Feb 29 08:23:56 achernar kernel: Buffer I/O error on device dm-0, logical block 14252050 Feb 29 08:23:56 achernar kernel: lost page write due to I/O error on dm-0 Feb 29 08:23:56 achernar kernel: Buffer I/O error on device dm-0, logical block 14252051 Feb 29 08:23:56 achernar kernel: lost page write due to I/O error on dm-0 Feb 29 08:23:56 achernar kernel: Buffer I/O error on device dm-0, logical block 14252052 Feb 29 08:23:56 achernar kernel: lost page write due to I/O error on dm-0 Feb 29 08:23:56 achernar kernel: Buffer I/O error on device dm-0, logical block 14252053 Feb 29 08:23:56 achernar kernel: lost page write due to I/O error on dm-0 Feb 29 08:23:57 achernar fcoemon: error 111 Connection refused
I could not find any sensible message on the pysical host, neither in /var/log/messages nor in /var/log/libvirt.
We do have an almost identical server, same hardware, same software which does not have this problem.
How could I proceed to better diagnose the cause of the troubles?
Regards,