I have a problem shutting down a server with Zpool on iscsi devices. The shutdown gets stuck. In the console log I see the message:


WARNING: Pool 'zones' has encountered an uncorrectable I/O failure and has been suspended; `zpool clear` will be required before the pool can be written to. 
The message looks to me like the IP connection to the storage server was already terminated before the Zpool was unmounted. 
I forced the shutdown with an NMI reset so that I have a crash dump. In the crash dump I see that a zone on the pool in question is still in shutting_down. 
Is it possible to get information from crash dump like *svcs* of a running system?
How can I see in the crash dump whether the IP interfaces are still working? Normally the SMF

svc:/network/iscsi/initiator:default
should wait for the zones to shutdown and reach the state installed.
 How can I see in the crash dump that the SMF dependencies are correctly taken into account?

Many thanks!
Carsten