Dear people of the world.
I have a problem reattaching an iSCSI target on XenServer after a reboot.
Whenever I try, I get several errors. Here's me in the attach screen on the redundant storage after it failed to reconnect:
http://i.imgur.com/jkBYI1g.png
So it found the Target IQN and Target LUN, but after I click on Finish, I get the following error:
Scanning for LVM over iSCSI SRs on 192.168.3.1
Logging in to the iSCSI target failed. Check your username and password.
Check your settings and try again.
Funny thing is that I disabled CHAP on the Target in Synology.
Even after removing the storage in Xen, then trying to connect again, the same error.
If I disable multipathing I can attach it just fine. But if I enable multipathing, I get the errors.
Does anyone know why?
Best Answer
Have you granted your servers access to the LUN's from the SAN? For my SAN I had to log into the management console, create a hostgroup (ex: named it 'blade-servers'), mapped the necessary LUNs to the hostgroup then added each individual server as a host to the host group. I could see the ISCSI IQN for each server I wanted to allow access to my LUNs.
But you're environment could be entirely different. What kind of SAN are you working with?