[Stgt-devel] support to close a connection by force and to shut down tgtd

[Doron Shoham]

Tomasz Chmielewski wrote:
> FUJITA Tomonori schrieb:
>> I added features:
>>
>> - to drop an active connection by force (iSCSI)
> 
> (...)
> 
>> The initiator still works but can't reconnect anymore. It's ready to
>> drop the connection.
>>
>> root at iris:~/git# ./tgt/usr/tgtadm --op delete --mode conn --tid 1 --sid 1 --cid 0
> 
> Hmm, for some reason it doesn't work for me. It did work several times however, so perhaps I'm doing something wrong. I can't find what, though.
> 
> 
> # tgtadm --op show --mode target
> (...)
> Target 3: iqn.2008-06.net.syneticon:superthecus.test
>     System information:
>         Driver: iscsi
>         State: ready
>     I_T nexus information:
>         I_T nexus: 11
>             Initiator: iqn.2006-12.net.syneticon:server.backup1
>             Connection: 0
>                 IP Address: 192.168.111.173
>     LUN information:
>         LUN: 0
>             Type: controller
>             SCSI ID: deadbeaf3:0
>             SCSI SN: beaf30
>             Size: 0 MB
>             Online: Yes
>             Removable media: No
>             Backing store: No backing store
>         LUN: 1
>             Type: disk
>             SCSI ID: deadbeaf3:1
>             SCSI SN: beaf31
>             Size: 2147 MB
>             Online: Yes
>             Removable media: No
>             Backing store: /dev/superthecus/test
>     Account information:
>     ACL information:
>         ALL
> 
> 
> Let's remove ACL permissions first (after that, "ALL" is gone from "ACL information"):
> 
> # tgtadm --op unbind --mode target --tid 3 -I ALL
> 
> 
> Next thing would be this, I guess (Target 3 -> tid 3; I_T nexus: 11 -> sid 11; Connection: 0 -> cid 0)?
> 
> # tgtadm --op delete --mode conn --tid 3 --sid 11 --cid 0
> 
> 
> However, it doesn't change anything:
> 
> # tgtadm --op show --mode target
> (...)
> Target 3: iqn.2008-06.net.syneticon:superthecus.test
>     System information:
>         Driver: iscsi
>         State: ready
>     I_T nexus information:
>         I_T nexus: 11
>             Initiator: iqn.2006-12.net.syneticon:server.backup1
>             Connection: 0
>                 IP Address: 192.168.111.173
>     LUN information:
>         LUN: 0
>             Type: controller
>             SCSI ID: deadbeaf3:0
>             SCSI SN: beaf30
>             Size: 0 MB
>             Online: Yes
>             Removable media: No
>             Backing store: No backing store
>         LUN: 1
>             Type: disk
>             SCSI ID: deadbeaf3:1
>             SCSI SN: beaf31
>             Size: 2147 MB
>             Online: Yes
>             Removable media: No
>             Backing store: /dev/superthecus/test
>     Account information:
>     ACL information:
> 
> 
> 

It worked for me.
Please pay attention that the initiator is trying to re-connect.
To check it, you can delete the target right after you close the connection.

Tomo - please note that the I_T nexus id is in hex but the tgtadm accepts only decimal values.
Please change the I_T nexus id to decimal.

Doron