Re: [Iscsitarget-devel] How to change fileio to blockio without restarting ietd? Anyone?

[Tomasz C. <ma...@wp...>]

S. J. van Harmelen schrieb:

>> If it works, do the same for the real target - note again - ietd can 
>> hang when being restarted (there are workarounds, though)!
> 
> Oke, but my question was how to do it without restarting IET because I
> have a production target running on the same server as the target that I
> want to change.
> 
> So how can I do this with ietadm without restarting ietd?

Restarting the iSCSI target shouldn't confuse the initiator.
The worst that can happen is that the initiator will do a "host reset" - 
which also can happen and happens with normal drives.

Restarting the target also seems to be the fastest way for me.
Other possibility would be to remove a given target with "ietadm --op 
delete" (as Arne already suggested) - but you can't do it, as long as 
the initiator is connected to it. As a consequence, you would have to 
block the initiator with iptables, wait ~10 minutes until the connection 
times out, remove the target, add it again.

Again, initiator should survive a 10 minute disconnection if it's 
configured properly (by default, open-iscsi will drop a connection if 
there is no activity for more than 120 seconds).



-- 
Tomasz Chmielewski
http://wpkg.org