Possibly, you can boot it with "-s" for single mode (or "boot -m 
milestone=none"), or boot a rescue (fail-safe) image and mount the installed 
system (perhaps read-only, especially if it has a UFS mirrored root; no 
problems with ZFS ones), or "Ctrl+C" out of the installer on a Solaris/SX:CE 
boot. 

>From single-user boot and installer break-out at least, you can try to fire up 
>the network by "svcadm enable -r network/physical:default", "svcadm enable -r 
>ssh" or "svcadm enable -r nfs/client" which should start all needed 
>dependencies.

If the system is already running, and you have console access, you can 
"downshift" it to single-user mode, i.e. "init s"; but after logging into the 
single mode root you should run "ps -ef" and kill off certain unstopped 
services (custom VNC server in my case, although it's nearly harmless) as you 
deem appropriate.

Then if you have the ZFS root, make a snapshot and "zfs send" it to the archive 
(recursively if appropriate).

For a UFS or ZFS root you can do "flarcreate" with a specified root (-R) and 
exclusions (i.e. "-x /export/flar") - but AFAIK flarcreate only saves to a 
file, you may have hard time piping that into ssh (you might though, i.e. 
create a pipe-file explicitly - I didn't test this for flars, but used for 
compressing huge Oracle dumps over 2Gb in size some years ago).

HTH,
//Jim
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