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howtos:network_services:iscsi [2019/11/09 01:07 (UTC)]
bifferos created
howtos:network_services:iscsi [2019/12/01 00:57 (UTC)]
bifferos [Target Configuration]
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 The kernel modules are also loaded automatically by Slackware-current. ​ open-iscsi SlackBuild on SBO has been recently fixed, so should install with slpkg -s sbo open-isci. The kernel modules are also loaded automatically by Slackware-current. ​ open-iscsi SlackBuild on SBO has been recently fixed, so should install with slpkg -s sbo open-isci.
  
-==== Configuration ====+==== Target ​Configuration ====
  
-First, get the initiator ID from the client:+First, get the initiator ID from the initiator (client):
 <​code>​ <​code>​
 # cat /​etc/​iscsi/​initiatorname.iscsi ​ # cat /​etc/​iscsi/​initiatorname.iscsi ​
 </​code>​ </​code>​
  
-Then on the server+Mine looks like this: 
 +<​code>​ 
 +InitiatorName=iqn.2005-03.org.open-iscsi:​91871cf5e261 
 +</​code>​ 
 + 
 +It will be important later. 
 + 
 +Next we need to configure our target (that'​s ​the 'server' remember?​). ​ In order to do this we use something called target-cli, so get targetcli-fb from Slackbuilds and install it: 
 + 
 +<​code>​ 
 +slpkg -s sbo targetcli-fb 
 +</​code>​ 
 + 
 +Targetcli requires a directory to store its data, make sure it exists:
  
 <​code>​ <​code>​
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 </​code>​ </​code>​
  
 +targetcli is a bit like a command-line directory browser except you use it to change values in a hierarchical store. That same hierarchy also contains the commands you invoke to make changes, however. ​ You've probably not seen anything like it before and it's best just described by example.
  
 +Start by launching targetcli
  
 +<​code>​
 +# targetcli
 +targetcli shell version 2.1.51
 +Copyright 2011-2013 by Datera, Inc and others.
 +For help on commands, type '​help'​.
 +
 +/>
 +</​code>​
 +
 +Assuming you have a spare (unused) disk, you can now create a block device, e.g.:
 +
 +<​code>​
 +/> backstores/​block create name=myblockdevice dev=/​dev/​sdb
 +Created block storage object block using /dev/sdb.
 +</​code>​
 +
 +Next move to the iscsi target creation step.  Just type create and allow the target to be given a generated name, it's good enough for our purposes. ​ You can give your own name if you want but I saw little point for my setup.
 +
 +<​code>​
 +/> iscsi/
 +/iscsi> create
 +created target iqn.2003-01.org.linux-iscsi.iscsi-server.x8664:​sn.7f83425fbbe8
 +Created TPG 1.
 +Global pref auto_add_default_portal=true
 +Created default portal listening on all IPs (0.0.0.0), port 3260
 +</​code>​
 +
 +Next create LUN for the created target. Type the name of the target/tpg1 to move to the configuration area:
 +
 +<​code>​
 +/iscsi> iqn.2003-01.org.linux-iscsi.iscsi-server.x8664:​sn.7f83425fbbe8/​tpg1
 +</​code>​
 +
 +Then configure it:
 +
 +<​code>​
 +/​iscsi/​iqn.20....425fbbe8/​tpg1>​ luns/ create /​backstores/​block/​myblockdevice
 +</​code>​
 +
 +Then add an ACL by moving into the acl area and creating an ACL which matches the name of the initiator name that you got from the client:
 +
 +<​code>​
 +/​iscsi/​iqn.20....425fbbe8/​tpg1>​ acls/
 +/​iscsi/​iqn.20....be8/​tpg1/​acls>​ create iqn.2005-03.org.open-iscsi:​91871cf5e261
 +</​code>​
 +
 +Simply exit to save your changes:
 +
 +<​code>​
 +/> exit
 +Global pref auto_save_on_exit=true
 +Last 10 configs saved in /​etc/​target/​backup.
 +Configuration saved to /​etc/​target/​saveconfig.json
 +#
 +</​code>​
  
 ====== Sources ====== ====== Sources ======

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