Douglas> This is FAS8080 running 8.2.5P37Mode, and we've seen it on 3
Douglas> of the same systems that are newly installed (it is for a
Douglas> migration to cmode).

Interesting, because I was just doing a bunch of snapmirror initialize
this past week from an 3220 pair to a 3250 7-mode pair running 8.2.x
or something like that.  I had no problems with starting my
snapmirrors when I had just done:

  ssh filer snapmirror initialize -S 3220:/vol/foo /foo

and it worked just fine, and my 3250s are kinda sorta really old and
over 50% busy, but not really critical. 

Douglas> Wondering if anyone has run into this issue. We are
Douglas> experiencing an odd issue where when starting a snapmirror of
Douglas> serial/SP the console hangs (messages do appear on the
Douglas> screen). If we ssh into the system it works fine. If we drop
Douglas> and go back to console it is still hung.

Douglas> We've also tested starting the snapmirror via ssh and that
Douglas> hangs as well, and the console works fine. I havent confirmed
Douglas> whether or not if I then drop that SSH session and relogin if
Douglas> it is still hung.

Douglas> I've never seen this before on new systems, and wondering if
Douglas> anyone has seen the exact issue. I have however seen
Douglas> consoles/ssh hang because of system load or wafl checks, but
Douglas> never with establishing a snapmirror baseline.

Does it ever come back if you wait a long time?  Where are you doing
your SSH connections from?  I do have to now do the following from my
newer Linux hosts:

  ssh -oCiphers=+3des-cbc user@filer

Which might be an issue?

John