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Tags | CentOS | ISCSI | Linux

Centos ISCSI initiator

To mount and use an ISCSI volume you'll need to install the following tools:

Now locate the targets (drives) on the ISCSI server.

Once the above starts ok, you can use fdisk -l to see your new disk, then just format and treat it as you would any other disc.

I ran into an interesting problem on one clients configuration though, the client had a ISCI server behind a NAT router. When the CentOS box would try to connect I would get the following eror:

It took forever to figure out what was going on, I had to do TCP dumps and finally relized what was going wrong, while the discovery worked correctly, when the client tried to connect to the server, it was sending the request to the NAT address, and that client and server where on different networks. So I edited the config file for that node:

Then I looked for the following lines:
node.discovery_address = xxx.xxx.xxx.xxx
node.conn[0].address = 192.168.0.101
I then changed the 2nd line to match the top line, ran /etc/init.d/iscsi restart and BOOM, she was working like a champ!

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