Greetings Mike,
Yep, Go ahead and post the stuff i had mentioned to Wayne onto the open
iscsi forum.
Mike was corrected in diagnosing my problem, it was the Clariion
AX4-5SCi storage which i had a problem with that caused me not to be
able to format /dev/sdb.
I didn't realized that after a ton of configuration change on the web
interface of the NAS storage,
i had to assigned the Virtual Storage i created to the rhel server.
Once i assigned the virtual disk to the server, i was able to create a
4TB partition and format the /dev/sdb to ext4 with /sbin/parted
/dev/sdb. fdisk could only format up to 2 TB.
Thanks Guys.
Freeman (aka Aschenbach)
On 12/15/2011 04:25 PM, Mike Christie wrote:
Aschenbach/Freeman updated me with this info offlist.
He said I could forward the info to the list for future users hitting
the problem:
<from Aschenbach/Freeman>
Thanks for replying, You were right about this problem i have with a Dell
AX4-5SCi iscsi storage unit.
The problem was the storage devices needs to grant access to the machine
that it needs to communicate with.
I had to go to the web IP interface of the Storage Device to give access to
the rhel linux machine.
After i've done that, it was working for me.
<end>
On 12/15/2011 08:46 AM, [email protected] wrote:
The device you are trying to access is a LUNZ.
Dec 13 09:54:08 arc2 kernel: Vendor: DGC Model:
**LUNZ** Rev: 0223
Dec 13 09:54:08 arc2 kernel: Type: Direct-
Access ANSI SCSI revision: 04
Dec 13 09:54:08 arc2 kernel: Vendor: DGC Model:
**LUNZ** Rev: 0223
This is a device that is used for in band communications with the array. You
need to add LUNs to the storage group assigned to your host then rescan the
SCSI bus to pick up the new LUN. After point you will have a device that you
can write to.
Regards,
Wayne.
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Mike Christie
Sent: Tuesday, December 13, 2011 5:03 PM
To: [email protected]
Cc: aschenbach
Subject: Re: Unable to read new detected iscsi device /dev/sdb
On 12/13/2011 10:39 AM, aschenbach wrote:
[root@arc2 ifaces]# uname -a
Linux arc2.irss.unc.edu 2.6.18-238.12.1.el5 #1 SMP Sat May 7 20:18:50
EDT 2011 x86_64 x86_64 x86_64 GNU/Linux
Dec 13 09:54:08 arc2 kernel: Broadcom NetXtreme II iSCSI Driver bnx2i
v2.1.3 (Aug 10, 2010)
Dec 13 09:54:08 arc2 kernel: iscsi: registered transport (bnx2i)
Dec 13 09:54:08 arc2 kernel: scsi89 : Broadcom Offload iSCSI Initiator
Dec 13 09:54:08 arc2 kernel: bnx2i [16:00.00]: ISCSI_INIT passed
Dec 13 09:54:08 arc2 kernel: scsi90 : Broadcom Offload iSCSI Initiator
Dec 13 09:54:08 arc2 kernel: bnx2i [13:00.00]: ISCSI_INIT passed
Dec 13 09:54:08 arc2 kernel: scsi91 : Broadcom Offload iSCSI Initiator
Dec 13 09:54:08 arc2 kernel: scsi92 : Broadcom Offload iSCSI Initiator
Dec 13 09:54:08 arc2 kernel: scsi93 : Broadcom Offload iSCSI Initiator
Dec 13 09:54:08 arc2 kernel: scsi94 : Broadcom Offload iSCSI Initiator
Dec 13 09:54:08 arc2 kernel: iscsi: registered transport (tcp)
Dec 13 09:54:08 arc2 kernel: iscsi: registered transport (iser)
Dec 13 09:54:08 arc2 kernel: iscsi: registered transport (be2iscsi)
Dec 13 09:54:08 arc2 iscsid: iSCSI logger with pid=26230 started!
Dec 13 09:54:08 arc2 kernel: scsi95 : iSCSI Initiator over TCP/IP
Dec 13 09:54:08 arc2 kernel: scsi96 : iSCSI Initiator over TCP/IP
Dec 13 09:54:08 arc2 kernel: Vendor: DGC Model:
LUNZ Rev: 0223
Dec 13 09:54:08 arc2 kernel: Type: Direct-
Access ANSI SCSI revision: 04
Dec 13 09:54:08 arc2 kernel: Vendor: DGC Model:
LUNZ Rev: 0223
Dec 13 09:54:08 arc2 kernel: Type: Direct-
Access ANSI SCSI revision: 04
Dec 13 09:54:08 arc2 kernel: sdb : READ CAPACITY failed.
Dec 13 09:54:08 arc2 kernel: sdb : status=1, message=00, host=0,
driver=08
Dec 13 09:54:08 arc2 kernel: sd: Current: sense key: Illegal Request
Dec 13 09:54:08 arc2 kernel: Add. Sense: Logical unit not
supported
Dec 13 09:54:08 arc2 kernel:
Dec 13 09:54:08 arc2 kernel: sdc : READ CAPACITY failed.
Dec 13 09:54:08 arc2 kernel: sdc : status=1, message=00, host=0,
driver=08
Dec 13 09:54:08 arc2 kernel: sd: Current: sense key: Illegal Request
Dec 13 09:54:08 arc2 kernel: Add. Sense: Logical unit not
supported
Dec 13 09:54:08 arc2 kernel:
Dec 13 09:54:08 arc2 kernel: sdb: test WP failed, assume Write Enabled
Dec 13 09:54:08 arc2 kernel: sdb: asking for cache data failed
Dec 13 09:54:08 arc2 kernel: sdb: assuming drive cache: write through
Dec 13 09:54:08 arc2 kernel: sd 95:0:0:0: Attached scsi disk sdb
Dec 13 09:54:08 arc2 kernel: sd 95:0:0:0: Attached scsi generic sg1
type 0
Dec 13 09:54:08 arc2 kernel: sdc: test WP failed, assume Write Enabled
Dec 13 09:54:08 arc2 kernel: sdc: asking for cache data failed
Dec 13 09:54:08 arc2 kernel: sdc: assuming drive cache: write through
Dec 13 09:54:08 arc2 kernel: sd 96:0:0:0: Attached scsi disk sdc
Dec 13 09:54:08 arc2 kernel: sd 96:0:0:0: Attached scsi generic sg2
type 0
Dec 13 09:54:09 arc2 iscsid: transport class version 2.0-871. iscsid
version 2.0-872
Dec 13 09:54:09 arc2 iscsid: iSCSI daemon with pid=26231 started!
Dec 13 09:54:09 arc2 iscsid: Connection1:0 to [target: iqn.
1992-04.com.emc:cx.apm00100800387.a1, portal: 152.2.32.187,3260]
through [iface: bnx2i.00:10:18:41:53:f6] is operational now
Dec 13 09:54:09 arc2 iscsid: Connection2:0 to [target: iqn.
1992-04.com.emc:cx.apm00100800387.a0, portal: 152.2.32.186,3260]
through [iface: bnx2i.00:10:18:41:53:f6] is operational now
[root@arc2 ifaces]# /sbin/fdisk /dev/sdb
Unable to read /dev/sdb
i don't understand why i can't seem to format this iscsi storage
device ? please advise
It looks like the target is not set up correctly or you trying to access
the wrong device. Is sdb's module listed as LUNZ?
cat /sys/block/sdb/device/model
If so then that is not a LUN that has storage backing it. It is some
sort of magic administration type of device.
You might not have the target setup so the initiator can access the
storage correctly. Is there some sort of access list on the target?
Does it work with software iscsi?
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