[iscsictl] connection to invalid target

RA H rah.lists at gmail.com
Wed Jul 1 19:27:29 UTC 2015


Thanks for the suggestion. Based on the debug log it looked like the
problem was with the SAN, and in fact it is. Apparently it's not considered
a pressing issue because most initiators will only attempt to connect to
targets returned by a discovery session...

I'm using another workaround for the target validation which works fine,
but it's more complicated than my initial plan, nevermind simply parsing
the output of a discovery session eg. "iscontrol -dt <target address>".
Since I have your attention, is there any chance of such a thing being
implemented with iscsictl?

Thanks again.

On Tue, Jun 30, 2015 at 3:45 PM, Edward Tomasz Napierała <trasz at freebsd.org>
wrote:

> On 0629T1458, RA H wrote:
> > I have a SAN with four iSCSI targets,
> > eui.000B56007135B1B0 through eui.000B56007135B1B3
> >
> > I need to validate target names entered manually by a user.
> > Normally, I would do this is by searching the output of a discovery
> > session. Since iscsictl doesn't allow doing discovery *only*, the only
> > way I can think of to validate a target is to connect, then parse the
> > output of "iscsictl -L". Unfortunately, attempting to connect to certain
> > invalid targets results in connection to a valid target:
> >
> > # iscsictl -Ad 192.168.3.111
> > # iscsictl -L
> > Target name                          Target portal    State
> > eui.000B56007135B1B0                 192.168.3.111    Connected: da0
> > eui.000B56007135B1B1                 192.168.3.111    Connected: da2
> > eui.000B56007135B1B2                 192.168.3.111    Connected: da1
> > eui.000B56007135B1B3                 192.168.3.111    Connected: da3
> > # iscsictl -Ra
> > # iscsictl -A -p 192.168.3.111 -t eui.000B56007135B1A1
> > # iscsictl -L
> > Target name                          Target portal    State
> > eui.000B56007135B1A1                 192.168.3.111    Connected: da0
> > # dmesg
> > ...
> > da0: Serial Number 000B56007135B1B10000
> > ...
> >
> > As the Serial Number indicates, iscsictl actually connected to
> > target eui.000B56007135B1B1.
>
> That's weird.  Could you paste the iscsid debug log when this happens?
> (Basically do "pkill iscsid; while :; do iscsid -d; done" in a separate
> shell and capture the output).
>
>


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