Re: vmware esx iscsi

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Hi,

Thanks for your response.

After troubleshooting, I found out that the problem was an MTU problem,
so I got packet loss between the nodes.

Kind regards,

Michiel Piscaer

On 20-06-16 22:57, Ovi Chis wrote:
> The config looks ok. Maybe you have an ip conflict or target conflict
> that the ESXi detects and offlines the connection
> 
> On Jun 16, 2016 11:18 AM, "M. Piscaer" <debian@xxxxxxxxxxx
> <mailto:debian@xxxxxxxxxxx>> wrote:
> 
>     Hi,
> 
>     I'm trying to connect an vmware esxi hosts to an stgt target.
> 
>     I have this little config:
> 
>     <target iqn.2014-04.rbdstore.example.com:loop>
>         driver iscsi
>         backing-store /var/tgt/store1
>         scsi_id 00010005
>     </target>
> 
> 
>     tgt-admin -s
>     Target 1: iqn.2014-04.rbdstore.example.com:loop
>         System information:
>             Driver: iscsi
>             State: ready
>         I_T nexus information:
>             I_T nexus: 9
>                 Initiator: iqn.1998-01.com.vmware:test-esx-02-795ba8ca
>     alias: none
>                 Connection: 0
>                     IP Address: 10.114.13.124
>         LUN information:
>             LUN: 0
>                 Type: controller
>                 SCSI ID: IET     00010000
>                 SCSI SN: beaf10
>                 Size: 0 MB, Block size: 1
>                 Online: Yes
>                 Removable media: No
>                 Prevent removal: No
>                 Readonly: No
>                 SWP: No
>                 Thin-provisioning: No
>                 Backing store type: null
>                 Backing store path: None
>                 Backing store flags:
>             LUN: 1
>                 Type: disk
>                 SCSI ID: 00010005
>                 SCSI SN: beaf11
>                 Size: 21475 MB, Block size: 512
>                 Online: Yes
>                 Removable media: No
>                 Prevent removal: No
>                 Readonly: No
>                 SWP: No
>                 Thin-provisioning: No
>                 Backing store type: rdwr
>                 Backing store path: /var/tgt/store1
>                 Backing store flags:
>         Account information:
>         ACL information:
>             ALL
> 
>     ls -l /var/tgt/store1
>     -rw-rw-rw- 1 root root 21474836480 Jun 16 16:15 /var/tgt/store1
> 
> 
>     The problem is that I get vmware error when I try to mount the
>     datastore.
> 
> 
>     From vmkernel.log I see the following:
> 
>     2016-06-16T15:09:46.005Z cpu0:33350)WARNING: iscsi_vmk:
>     iscsivmk_StopConnection: vmhba38:CH:0 T:0 CN:0: iSCSI connection is
>     being marked "OFFLINE" (Event:4)
>     2016-06-16T15:09:46.006Z cpu0:33350)WARNING: iscsi_vmk:
>     iscsivmk_StopConnection: Sess [ISID: 00023d000001 TARGET:
>     iqn.2014-04.rbdstore.example.com:loop TPGT: 1 TSIH: 0]
>     2016-06-16T15:09:46.006Z cpu0:33350)WARNING: iscsi_vmk:
>     iscsivmk_StopConnection: Conn [CID: 0 L: 10.114.13.124:31270
>     <http://10.114.13.124:31270> R:
>     10.114.13.61:3260 <http://10.114.13.61:3260>]
>     2016-06-16T15:09:46.006Z cpu0:33350)WARNING: iscsi_vmk:
>     iscsivmk_TaskMgmtIssue: vmhba38:CH:0 T:0 L:1 : Task mgmt "Abort Task"
>     with itt=0x739 (refITT=0x737) timed out.
>     2016-06-16T15:09:46.293Z cpu1:32838)WARNING: NMP:
>     nmp_DeviceRequestFastDeviceProbe:237: NMP device
>     "t10.0001000500000000000000000000000000000000000000000000000000000000"
>     state in doubt; requested fast path state update...
>     2016-06-16T15:09:46.670Z cpu1:32800)ScsiDeviceIO: 2651:
>     Cmd(0x43a5c07a8f40) 0x2a, CmdSN 0x17 from world 39720 to dev
>     "t10.0001000500000000000000000000000000000000000000000000000000000000"
>     failed H:0x3 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0.
>     2016-06-16T15:09:46.671Z cpu15:39720)BC: 2430: Failed to write
>     (uncached) object
>     't10.0001000500000000000000000000000000000000000000000000000000000000':
>     Timeout
>     2016-06-16T15:09:48.778Z cpu0:33350)iscsi_vmk: iscsivmk_ConnNetRegister:
>     socket 0x4304164f13f0 network resource pool netsched.pools.persist.iscsi
>     associated
>     2016-06-16T15:09:48.778Z cpu0:33350)iscsi_vmk: iscsivmk_ConnNetRegister:
>     socket 0x4304164f13f0 network tracker id 16768
>     tracker.iSCSI.10.114.13.61 associated
>     2016-06-16T15:09:49.031Z cpu0:33350)WARNING: iscsi_vmk:
>     iscsivmk_StartConnection: vmhba38:CH:0 T:0 CN:0: iSCSI connection is
>     being marked "ONLINE"
>     2016-06-16T15:09:49.031Z cpu0:33350)WARNING: iscsi_vmk:
>     iscsivmk_StartConnection: Sess [ISID: 00023d000001 TARGET:
>     iqn.2014-04.rbdstore.example.com:loop TPGT: 1 TSIH: 0]
>     2016-06-16T15:09:49.031Z cpu0:33350)WARNING: iscsi_vmk:
>     iscsivmk_StartConnection: Conn [CID: 0 L: 10.114.13.124:47349
>     <http://10.114.13.124:47349> R:
>     10.114.13.61:3260 <http://10.114.13.61:3260>]
>     2016-06-16T15:09:49.035Z cpu11:39586)ScsiCore: 1609: Power-on Reset
>     occurred on vmhba38:C0:T0:L1
>     2016-06-16T15:09:49.408Z cpu1:32800)NMP: nmp_ThrottleLogForDevice:3298:
>     Cmd 0x9e (0x439dc0784f00, 0) to dev "mpx.vmhba32:C0:T0:L0" on path
>     "vmhba32:C0:T0:L0" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20
>     0x0. Act:NONE
>     2016-06-16T15:10:13.286Z cpu8:33251)NMP:
>     nmp_ResetDeviceLogThrottling:3349: last error status from device
>     t10.0001000500000000000000000000000000000000000000000000000000000000
>     repeated 108 times
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