Greetings, This is FAS8080 running 8.2.5P37Mode, and we've seen it on 3 of the same systems that are newly installed (it is for a migration to cmode).
Wondering if anyone has run into this issue. We are experiencing an odd issue where when starting a snapmirror of serial/SP the console hangs (messages do appear on the screen). If we ssh into the system it works fine. If we drop and go back to console it is still hung.
We've also tested starting the snapmirror via ssh and that hangs as well, and the console works fine. I havent confirmed whether or not if I then drop that SSH session and relogin if it is still hung.
I've never seen this before on new systems, and wondering if anyone has seen the exact issue. I have however seen consoles/ssh hang because of system load or wafl checks, but never with establishing a snapmirror baseline.
Regards, Douglas
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
Apologies for not following up I had someone reply to me directly suggesting I used -w, and sure enough ... that was the issue.
Embarrassing a bit!
On Mon, Nov 25, 2019 at 9:09 PM John Stoffel john@stoffel.org wrote:
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
Is the snapmirror going over e0m and saturating it?
On Fri, Nov 8, 2019, 3:53 PM Douglas Siggins siggins@gmail.com wrote:
Greetings, This is FAS8080 running 8.2.5P37Mode, and we've seen it on 3 of the same systems that are newly installed (it is for a migration to cmode).
Wondering if anyone has run into this issue. We are experiencing an odd issue where when starting a snapmirror of serial/SP the console hangs (messages do appear on the screen). If we ssh into the system it works fine. If we drop and go back to console it is still hung.
We've also tested starting the snapmirror via ssh and that hangs as well, and the console works fine. I havent confirmed whether or not if I then drop that SSH session and relogin if it is still hung.
I've never seen this before on new systems, and wondering if anyone has seen the exact issue. I have however seen consoles/ssh hang because of system load or wafl checks, but never with establishing a snapmirror baseline.
Regards, Douglas
Toasters mailing list Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters
-
Douglas Siggins -
John Stoffel -
jordan slingerland