help: how to set multiple luns support in RH AS4 ( with kernel 2.6.9-42.ELsmp )

闫鹏 ( Yan Peng ) yanpeng at mx.cei.gov.cn
Wed Oct 10 01:54:42 UTC 2007


Hi, everyone:

	I'd like to ask a question on setting rhas4 support multiple luns. The details are as the following:

	The platform is RH AS4 (Linux 2.6.9-42.ELsmp #1 SMP Wed Jul 12 23:27:17 EDT 2006 i686 i686 i386 GNU/Linux). And the iscsi rpm packages installed are 
	iscsi-initiator-utils-4.0.3.0-5
	iscsi-initiator-utils-debuginfo-4.0.3.0-5

	Then, I'd like to install  Bakbone backup server and a  QUANTUM virtual library with  Model DX3000 through iSCSI connected. I have set the iscsi.conf as the below:
    DiscoveryAddress=172.16.1.17
	 OutgoingUsername=test
 	 OutgoingPassword=abcdef123456
	LUNs=0-255

    While I started iscsi service at rhas4 server, the messages log file is as the below:

	Oct 10 09:29:29 backup2 iscsi: iscsi config check succeeded
	Oct 10 09:29:29 backup2 kernel: iscsi-sfnet: Loading iscsi_sfnet version 4:0.1.11-3
	Oct 10 09:29:29 backup2 kernel: iscsi-sfnet: Control device major number 254
	Oct 10 09:29:29 backup2 iscsi: Loading iscsi driver:  succeeded
	Oct 10 09:29:34 backup2 iscsid[3088]: version 4:0.1.11-4 variant (15-Jan-2007) 
	Oct 10 09:29:34 backup2 iscsi: iscsid startup succeeded
	Oct 10 09:29:34 backup2 iscsid[3089]: error on line 486 of /etc/iscsi.conf, ignoring unrecognized line LUNs=0-25
5 
	Oct 10 09:29:34 backup2 iscsid[3092]: Connected to Discovery Address 172.16.1.17 
	Oct 10 09:29:34 backup2 kernel: iscsi-sfnet:host15: Session established
	Oct 10 09:29:34 backup2 kernel: scsi15 : SFNet iSCSI driver
	Oct 10 09:29:34 backup2 kernel:   Vendor: QUANTUM   Model: DX3000   6532501  Rev: 0301
	Oct 10 09:29:34 backup2 kernel:   Type:   Medium Changer                     ANSI SCSI revision: 02
	Oct 10 09:29:34 backup2 kernel: Attached scsi generic sg2 at scsi15, channel 0, id 0, lun 0,  type 8
	Oct 10 09:29:34 backup2 scsi.agent[3115]: changer at /devices/platform/host15/target15:0:0/15:0:0:0

	Now the server can only know the library ,not the drivers included in the library. I suppose maybe the rhas4 or iscsi service not support multiple luns.  And I also have known the wrong parameter luns=0-255 in iscsi.conf.

	But how do I set to make the server support multiple luns and know both library and drivers it including?

	Many thanks.





 Yan Peng )
yanpeng at mx.cei.gov.cn
2007-10-10




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