Re: Problems with scsi-target-utils when hosted on dom0 centos 7 xen box

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Apr 11, 2016 at 9:14 PM, Nathan Coulson <nathan@xxxxxxxxxxxx> wrote:
> Hello
>
> We were attempting to use scsi-target-utils, hosted on a xen dom0 vm using
> localhost, and running into some problems.  I was not able to reproduce this
> on a centos 7.2 server using the default kernel.

Have you tried booting the Virt SIG kernel natively and seeing if you
can reproduce the problem at all?

Thanks,
 -George

>
>
> (From dmesg)
> Apr  4 11:18:42 funk kernel: [  596.511204]  connection2:0: detected conn
> error (1022)
> Apr  4 11:18:42 funk kernel: connection2:0: ping timeout of 5 secs expired,
> recv timeout 5, last rx 4295253788, last ping 4295258790, now 4295263808
> Apr  4 11:18:42 funk kernel: connection2:0: detected conn error (1022)
> Apr  4 11:18:42 funk iscsid: Kernel reported iSCSI connection 2:0 error
> (1022 - Invalid or unknown error code) state (3)
> Apr  4 11:18:44 funk iscsid: connection2:0 is operational after recovery (1
> attempts)
>
> Repeated a few times, until eventually
>
>
> Apr  4 11:19:44 funk kernel: Result: hostbyte=DID_TRANSPORT_DISRUPTED
> driverbyte=DRIVER_OK
> Apr  4 11:19:44 funk kernel: sd 7:0:0:1: [sdd] CDB:
> Apr  4 11:19:44 funk kernel: Write(10): 2a 00 01 df c7 e8 00 00 18 00
> Apr  4 11:19:44 funk kernel: blk_update_request: I/O error, dev sdd, sector
> 31442920
> Apr  4 11:19:44 funk kernel: [  658.127596] sd 7:0:0:1: [sdd]
> Apr  4 11:19:44 funk kernel: [  658.127688] Result:
> hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK
> Apr  4 11:19:44 funk kernel: [  658.127761] sd 7:0:0:1: [sdd] CDB:
> Apr  4 11:19:44 funk kernel: [  658.127826] Write(10): 2a 00 01 df c7 e8 00
> 00 18 00
> Apr  4 11:19:44 funk kernel: [  658.127927] blk_update_request: I/O error,
> dev sdd, sector 31442920
> Apr  4 11:19:44 funk kernel: [  658.128040] sd 7:0:0:1: [sdd]
> Apr  4 11:19:44 funk kernel: sd 7:0:0:1: [sdd]
> Apr  4 11:19:44 funk kernel: [  658.128105] Result:
> hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK
> Apr  4 11:19:44 funk kernel: [  658.128177] sd 7:0:0:1: [sdd] CDB:
> Apr  4 11:19:44 funk kernel: [  658.128241] Write(10): 2a 00 00 00 08 00 00
> 00 18 00
> Apr  4 11:19:44 funk kernel: [  658.128339] blk_update_request: I/O error,
> dev sdd, sector 2048
> Apr  4 11:19:44 funk kernel: Result: hostbyte=DID_TRANSPORT_DISRUPTED
> driverbyte=DRIVER_OK
> Apr  4 11:19:44 funk kernel: sd 7:0:0:1: [sdd] CDB:
> Apr  4 11:19:44 funk kernel: Write(10): 2a 00 00 00 08 00 00 00 18 00
> Apr  4 11:19:44 funk kernel: blk_update_request: I/O error, dev sdd, sector
> 2048
>
>
> (Test Setup)
> scsi-target-utils installed via yum, default config
> /etc/tgt/conf.d/xenguests.conf
> <target iqn.2016-02.com.bravenet:test>
>     backing-store //mnt/vmdisk/test # vm image
> </target>
>
> systemctl tgtd restart
>
> iscsiadm -m discovery -t sendtargets -p localhost
>
> iscsiadm -m node -T iqn.2016-02.com.bravenet:test -l
>
>
> add it to lvm (pvcreate, vgcreate), let's call it /dev/vmdisk.vg/test.lv
>
> and then use libvirt to attempt to install an os on /dev/vmdisk.vg/test.lv
> (using anaconda)
>
>
>
>
> Around the time it tries to create the disk label, is when the conn errors
> start, until eventually it gives up trying to create the disk label.
>
>
>
> We tested a similar setup on a centos 7.2 host we use kvm based
> virtualmachine hosting on (default 3.10 kernel), and it worked fine.  It may
> be similar to what was reported on
> https://bugzilla.redhat.com/show_bug.cgi?id=1245990, but I never saw a
> resolution on what they discovered (other then a reference to comment18
> which does not appear to exist).
>
> Testing over the network appears to also work as well (where another machine
> connects to scsi-target-utils on the funk server above.
>
>
>
>
>
> Longterm Purpose of the above setup, was to get direct access to a
> filesystem image hosted on a gluster setup, using bs-type glfs on
> scsi-target-utils.
>
> --
> Nathan Coulson
> www.bravenet.com
> nathan@xxxxxxxxxxxx
> _______________________________________________
> CentOS-virt mailing list
> CentOS-virt@xxxxxxxxxx
> https://lists.centos.org/mailman/listinfo/centos-virt
_______________________________________________
CentOS-virt mailing list
CentOS-virt@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos-virt



[Index of Archives]     [CentOS Users]     [Linux Media]     [Asterisk]     [DCCP]     [Netdev]     [X.org]     [Xfree86]     [Linux USB]

  Powered by Linux