Re: CentOS 7 as a Fibre Channel SAN Target

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It took me some time to come back full circle to this. I've worked quite a bit on this with little success so far. It seems like it's been done but on some of the forums and Github, there are no responses yet. This is essentially a cross post from a seemingly dead list. Hopefully someone here will have some suggestions.

I've googled this particular issue and not really finding any good results on how to resolve it.

I installed targetcli via yum on CentOS 7 and this is the version in the repo:
# targetcli
targetcli shell version 2.1.fb49
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type 'help'.

I downloaded the .zip of the targetcli-fb version and tried it too from the scripts folder and same results.

Python:
# python --version
Python 2.7.5

Libs:
Installed Packages
python-configshell.noarch 1:1.1.fb25-1.el7 @base
python-rtslib.noarch 2.1.fb69-3.el7 @base
python-rtslib-doc.noarch 2.1.fb69-3.el7 @base

The error comes up when using create.
/> /qla2xxx create naa.xxxxxxxxxxxxxxx
Could not create Target in configFS

Below is the info on my FC
/> qla2xxx/ info
Fabric module name: qla2xxx
ConfigFS path: /sys/kernel/config/target/qla2xxx
Allowed WWN types: naa
Allowed WWNs list: naa.xxxxxxxxxxxxxxx, naa.xxxxxxxxxxxxxxx, naa.xxxxxxxxxxxxxxx, naa.xxxxxxxxxxxxxxx, naa.xxxxxxxxxxxxxxx, naa.xxxxxxxxxxxxxxx, naa.xxxxxxxxxxxxxxx, naa.xxxxxxxxxxxxxxx
Fabric module features: acls
Corresponding kernel module: tcm_qla2xxx

I have attached the log but don't see anything that really stands out. log.txt

I checked per the link http://www.linux-iscsi.org/wiki/Fibre_Channel#Enable_target_mode to ensure that I have initiator mode disabled

# cat /sys/module/qla2xxx/parameters/qlini_mode
disabled

The kernel modules are loaded.
# lsmod | grep qla2xxx
tcm_qla2xxx 32768 1
target_core_mod 335872 4 tcm_qla2xxx,iscsi_target_mod
qla2xxx 634880 1 tcm_qla2xxx
scsi_transport_fc 65536 3 bfa,qla2xxx,tcm_qla2xxx

configfs is mounted:
# cat /proc/mounts | grep configfs
configfs /sys/kernel/config configfs rw,relatime 0 0

In the kernel config:
CONFIG_CONFIGFS_FS=y

Kernel:
4.4.207-1.el7.elrepo.x86_64

Should I be able to create a directory in /sys/kernel/config/target/qla2xxxx?
# mkdir naa.10008c7cffc7ef01
mkdir: cannot create directory ‘naa.xxxxxxxxxxxxxxx’: Invalid argument

I did notice that when I rebooted, there was no qla2xxx folder in /sys/kernel/config/target/ but after trying to use targetcli, it did make one so I'm not sure what else would cause it to fail.

Suggestions?

 
Thank you,
Steffan Cline
steffan@xxxxxxxxx
602-793-0014 
 

On 1/11/19, 12:01 AM, "Steffan A. Cline" <steffan@xxxxxxxxx> wrote:

    For quite some time I’ve been using FreeNAS to provide services as a NAS over ethernet and SAN over Fibre Channel to CentOS 7 servers each using their own export, not sharing the same one.
    
    It’s time for me to replace my hardware and I have a new R720XD that I’d like to use in the same capacity but configure CentOS 7 as a Fibre Channel target rather than use FreeNAS any further.
    
    I’m doing virtualization and this will allow me to have failover from one node to the other since they’ll all be sharing the same export rather than me simply backing up to the FreeNAS server the way I am now.
    
    Does anyone know of any really good current articles that explain how to set up CentOS 7 as the target in such a configuration and also setting up CLVMd so they can all share an export over Fibre Channel from CentOS 7?
    
    
    
    
    Steffan A. Cline
    steffan@xxxxxxxxx
    602-793-0014
    
    
    
    
    

[VERBOSE] 2019-12-27 23:55:29 Running command line 'qla2xxx/ info'.
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/shell.py:757 _parse_cmdline() Parsing commandline.
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/shell.py:775 _parse_cmdline() Parse gave path='qla2xxx/' command='info' pparams=[] kparams={}
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1846 get_node() Looking for path 'qla2xxx'
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1398 execute_command() Executing command info with pparams [] and kparams {}.
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1445 assert_params() Min params: 0
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1446 assert_params() Max params: 0
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1447 assert_params() Required params: 
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1448 assert_params() Optional params: 
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1449 assert_params() Got 0 standard params.
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1450 assert_params() Got 0 extended params.
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1451 assert_params() Variable positional params: None
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1452 assert_params() Variable keyword params: None
[INFO] 2019-12-27 23:55:29 Fabric module name: qla2xxx
[INFO] 2019-12-27 23:55:29 ConfigFS path: /sys/kernel/config/target/qla2xxx
[INFO] 2019-12-27 23:55:29 Allowed WWN types: naa
[INFO] 2019-12-27 23:55:29 Allowed WWNs list: naa.10008c7cffc7ef00, naa.10008c7cffc7ef01, naa.10008c7cffc52800, naa.10008c7cffc52801, naa.10008c7cffc7dc00, naa.10008c7cffc7dc01, naa.10008c7cffc58b00, naa.10008c7cffc58b01
[INFO] 2019-12-27 23:55:29 Fabric module features: acls
[INFO] 2019-12-27 23:55:29 Corresponding kernel module: tcm_qla2xxx
[DEBUG] 2019-12-27 23:55:29 /usr/lib/python2.7/site-packages/configshell_fb/shell.py:824 _execute_command() Command execution returned None
[VERBOSE] 2019-12-27 23:55:50 Running command line '/qla2xxx create naa.10008c7cffc7ef00'.
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/shell.py:757 _parse_cmdline() Parsing commandline.
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/shell.py:775 _parse_cmdline() Parse gave path='/qla2xxx' command='create' pparams=['naa.10008c7cffc7ef00'] kparams={}
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1846 get_node() Looking for path '/qla2xxx'
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1846 get_node() Looking for path 'qla2xxx'
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1398 execute_command() Executing command create with pparams ['naa.10008c7cffc7ef00'] and kparams {}.
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1445 assert_params() Min params: 0
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1446 assert_params() Max params: 1
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1447 assert_params() Required params: 
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1448 assert_params() Optional params: wwn
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1449 assert_params() Got 1 standard params.
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1450 assert_params() Got 0 extended params.
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1451 assert_params() Variable positional params: None
[DEBUG] 2019-12-27 23:55:50 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1452 assert_params() Variable keyword params: None
[ERROR] 2019-12-27 23:55:50 Could not create Target in configFS
[VERBOSE] 2019-12-27 23:55:54 Running command line 'exit'.
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/shell.py:757 _parse_cmdline() Parsing commandline.
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/shell.py:775 _parse_cmdline() Parse gave path='' command='exit' pparams=[] kparams={}
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1846 get_node() Looking for path '.'
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1398 execute_command() Executing command exit with pparams [] and kparams {}.
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1445 assert_params() Min params: 0
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1446 assert_params() Max params: 0
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1447 assert_params() Required params: 
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1448 assert_params() Optional params: 
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1449 assert_params() Got 0 standard params.
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1450 assert_params() Got 0 extended params.
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1451 assert_params() Variable positional params: None
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/node.py:1452 assert_params() Variable keyword params: None
[DEBUG] 2019-12-27 23:55:54 /usr/lib/python2.7/site-packages/configshell_fb/shell.py:824 _execute_command() Command execution returned 'EXIT'
[INFO] 2019-12-27 23:55:54 Global pref auto_save_on_exit=true
[INFO] 2019-12-27 23:55:54 Configuration saved to /etc/target/saveconfig.json
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