Re: [linux-iscsi-users] Connection to Discovery Address failed [EMC AX150SCi on RHEL4]

[thusi02 <thu...@ya...>]

Hi Matthew, 

Did you by chance get a workaround/solution to this? If so, could you please
provide your solution. 

Thank you
Thusjanthan Kubendranathan



Matthew Henkler wrote:
> 
> I'm getting this error in my event logs almost precisely every 30
> seconds.  The iscsi connection fails to the discovery address, and then
> is immediately made again.
> 
> Dec 14 15:48:52 chlorine iscsid[19813]: Connection to Discovery Address
> 192.168.15.2 failed 
> Dec 14 15:48:52 chlorine iscsid[19815]: Connection to Discovery Address
> 192.168.15.3 failed 
> Dec 14 15:48:52 chlorine iscsid[19813]: Connected to Discovery Address
> 192.168.15.2 
> Dec 14 15:48:52 chlorine iscsid[19815]: Connected to Discovery Address
> 192.168.15.3
> 
> Does anyone have any ideas what I can do to remedy this?  All RHEL4U4
> hosts that connect to this target exhibit this behavior, while the
> windows hosts do not.
> 
> 
> Relevant settings in /etc/iscsi.conf:
> 
> 	DiscoveryAddress=192.168.15.2
> 	DiscoveryAddress=192.168.15.3
> 	HeaderDigest=never
> 	DataDigest=never
> 	ConnFailTimeout=15
> 	InitialR2T=yes
> 
> The iscsi target has two ports/addresses in a separate VLAN
> (192.168.15.2,3).  The host is using a standard Intel Pro 1000MT (e1000)
> NIC.
> 
> I'm trying to track down an issue where the RHEL4 host iscsi LUNs are
> "hanging" and this seemed like a possible avenue to track down.
> 
> iscsi startup logs follow.
> 
> Thanks!
> 
> Matthew Henkler
> 
> Dec 14 15:48:17 chlorine iscsi: iscsi config check succeeded
> Dec 14 15:48:17 chlorine kernel: iscsi-sfnet: Loading iscsi_sfnet
> version 4:0.1.11-3
> Dec 14 15:48:17 chlorine kernel: iscsi-sfnet: Control device major
> number 252
> Dec 14 15:48:17 chlorine iscsi: Loading iscsi driver:  succeeded
> Dec 14 15:48:22 chlorine iscsid[19810]: version 4:0.1.11-3 variant
> (02-May-2006)
> Dec 14 15:48:22 chlorine iscsi: iscsid startup succeeded
> Dec 14 15:48:22 chlorine iscsid[19813]: Connected to Discovery Address
> 192.168.15.2
> Dec 14 15:48:22 chlorine iscsid[19815]: Connected to Discovery Address
> 192.168.15.3
> Dec 14 15:48:22 chlorine kernel: iscsi-sfnet:host31: Session established
> Dec 14 15:48:22 chlorine kernel: scsi31 : SFNet iSCSI driver
> Dec 14 15:48:22 chlorine kernel:   Vendor: DGC       Model: RAID 5
> Rev: 0220
> Dec 14 15:48:22 chlorine kernel:   Type:   Direct-Access
> ANSI SCSI revision: 04
> Dec 14 15:48:22 chlorine kernel: iscsi-sfnet:host32: Session established
> Dec 14 15:48:22 chlorine kernel: scsi32 : SFNet iSCSI driver
> Dec 14 15:48:22 chlorine kernel:   Vendor: DGC       Model: RAID 5
> Rev: 0220
> Dec 14 15:48:22 chlorine kernel:   Type:   Direct-Access
> ANSI SCSI revision: 04
> Dec 14 15:48:22 chlorine kernel: SCSI device sdd: 20971520 512-byte hdwr
> sectors (10737 MB)
> Dec 14 15:48:22 chlorine kernel: SCSI device sdd: drive cache: write
> through
> Dec 14 15:48:22 chlorine kernel: SCSI device sdd: 20971520 512-byte hdwr
> sectors (10737 MB)
> Dec 14 15:48:22 chlorine kernel: SCSI device sdd: drive cache: write
> through
> Dec 14 15:48:22 chlorine kernel:  sdd: sdd1
> Dec 14 15:48:22 chlorine kernel: Attached scsi disk sdd at scsi31,
> channel 0, id 0, lun 0
> Dec 14 15:48:22 chlorine kernel: Attached scsi generic sg5 at scsi31,
> channel 0, id 0, lun 0,  type 0
> Dec 14 15:48:22 chlorine scsi.agent[19937]: disk at
> /devices/platform/host31/target31:0:0/31:0:0:0
> Dec 14 15:48:22 chlorine kernel: SCSI device sde: 20971520 512-byte hdwr
> sectors (10737 MB)
> Dec 14 15:48:22 chlorine kernel: SCSI device sde: drive cache: write
> through
> Dec 14 15:48:22 chlorine kernel: SCSI device sde: 20971520 512-byte hdwr
> sectors (10737 MB)
> Dec 14 15:48:22 chlorine kernel: SCSI device sde: drive cache: write
> through
> Dec 14 15:48:22 chlorine kernel:  sde: sde1
> Dec 14 15:48:22 chlorine kernel: Attached scsi disk sde at scsi32,
> channel 0, id 0, lun 0
> Dec 14 15:48:22 chlorine kernel: Attached scsi generic sg6 at scsi32,
> channel 0, id 0, lun 0,  type 0
> Dec 14 15:48:22 chlorine scsi.agent[20018]: disk at
> /devices/platform/host32/target32:0:0/32:0:0:0
> 
> 
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