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Old 07-19-2007, 02:03 AM   #1
vmm_sys
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connect debian etch to IBM SAN, meaning of "SNS scan failed" ?


Hi, I installed a debian etch 4.0r0 amd64 on an ibm blade HS21, with a qlogic HBA 2422 included. I would like to connect them to an IBM SAN 4700.
I installed with apt-get the debian package "firmware-qlogic" and afterwards did a "update-initramfs -u". My colleague said he has done the necessary changes in the SAN.

After a reboot, I get the following messages in dmesg:
qla2xxx 0000:08:01.0: Found an ISP2422, irq 90, iobase 0xffffc20000004000
qla2xxx 0000:08:01.0: Configuring PCI space...
qla2xxx 0000:08:01.0: Configure NVRAM parameters...
qla2xxx 0000:08:01.0: Verifying loaded RISC code...
qla2xxx 0000:08:01.0: Allocated (64 KB) for EFT...
qla2xxx 0000:08:01.0: Allocated (1413 KB) for firmware dump...
qla2xxx 0000:08:01.0: Waiting for LIP to complete...
qla2xxx 0000:08:01.0: LOOP UP detected (4 Gbps).
qla2xxx 0000:08:01.0: Topology - (F_Port), Host Loop address 0x0
qla2xxx 0000:08:01.0: SNS scan failed -- assuming zero-entry result...
scsi0 : qla2xxx
qla2xxx 0000:08:01.0:
qla2xxx 0000:08:01.1: Found an ISP2422, irq 114, iobase 0xffffc20000006000
qla2xxx 0000:08:01.1: Configuring PCI space...
qla2xxx 0000:08:01.1: Configure NVRAM parameters...
qla2xxx 0000:08:01.1: Verifying loaded RISC code...
qla2xxx 0000:08:01.1: Allocated (64 KB) for EFT...
qla2xxx 0000:08:01.1: Allocated (1413 KB) for firmware dump...
qla2xxx 0000:08:01.1: Waiting for LIP to complete...
qla2xxx 0000:08:01.1: LOOP UP detected (4 Gbps).
qla2xxx 0000:08:01.1: Topology - (F_Port), Host Loop address 0x0
qla2xxx 0000:08:01.1: SNS scan failed -- assuming zero-entry result...
scsi1 : qla2xxx
qla2xxx 0000:08:01.1:

I was wondering what the "SNS scan failed" means. It seems to me that I can't connect to the san. If I look in /proc/scsi I don't see the SAN-drive either.
Does anybody know where the problem is?
 
Old 07-31-2007, 02:12 AM   #2
vmm_sys
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SNS, Simple Name Server

Hi,

Some extra information. According to documentation of qlogic, "SNS" stands for "Simple Name Server", "software that runs inside a fabric switch, used for zoning".

Is there someone who knows where I have to look or do some tests to solve these problem?

Thanks.
 
Old 08-01-2007, 07:23 AM   #3
vmm_sys
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Just an update, problem was due to a misconfiguration on our san.
 
Old 08-18-2007, 01:14 PM   #4
doktora
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Hi,

Could you elaborate a bit on what the misconfiguration was? I have the exact same problem.

Thanks
Doktora
 
Old 08-29-2007, 04:37 AM   #5
vmm_sys
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Location: Belgium
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HI,

I don't know that much about SAN, it was my colleague who has done the settings.

According to him, the problem was due to the settings of the zoning of the SAN-switches.

greetings.
 
  


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