Hi guys, I would like to change/set one of the NICs on a FAS3040 to enable flow control after my Network Operations guys turn-on flow control on their switch port.
Can I just "filer> ifconfig e0a flowcontrol full" while the filer is serving data or do I need to 'down/up' the interface ?
The protocols on the filer is all nfs and some iSCSI.
Thanks, George
George,
You can just type in the command and edit your /etc/rc file accordingly (so things are set correctly upon your next reboot).
It should take the interface about a second or 5, in my experience, before the change becomes fully active. Expect network traffix to stall during this, but after that, things just pick up again without any actual loss of connectivity.
That is, if you've not make any configuration mistakes (eg. on the switch) that cause you to lose connectivity altogether.
I'd recommend doing it from the RLM so you still have your command-line if you made a mistake and need to revert back...
Best regards, Filip
On Thu, Jan 8, 2009 at 2:53 PM, George Kahler george@yorku.ca wrote:
Hi guys, I would like to change/set one of the NICs on a FAS3040 to enable flow control after my Network Operations guys turn-on flow control on their switch port.
Can I just "filer> ifconfig e0a flowcontrol full" while the filer is serving data or do I need to 'down/up' the interface ?
The protocols on the filer is all nfs and some iSCSI.
Thanks, George
On Thu, Jan 08, 2009 at 04:47:51PM +0100, Filip Sneppe wrote:
I'd recommend doing it from the RLM so you still have your command-line if you made a mistake and need to revert back...
Don't you mean "from the console" ?
My RLM listens on port 22, but I'm unable to log in to it. I cannot find any other way to contact the RLM. I'm wondering who can log in to that ssh port on the RLM (but then you first need to get past the firewall).
I am able to log into the filer using ssh, via one of the normale ethernet interfaces. Or via the serial console, for that matter.
This is on a FAS6080, by the way. Maybe other RLMs do allow access to the command line?
2009/1/8 Jan Pieter Cornet johnpc@xs4all.nl:
On Thu, Jan 08, 2009 at 04:47:51PM +0100, Filip Sneppe wrote:
I'd recommend doing it from the RLM so you still have your command-line if you made a mistake and need to revert back...
Don't you mean "from the console" ?
My RLM listens on port 22, but I'm unable to log in to it. I cannot find any other way to contact the RLM. I'm wondering who can log in to that ssh port on the RLM (but then you first need to get past the firewall).
I am able to log into the filer using ssh, via one of the normale ethernet interfaces. Or via the serial console, for that matter.
This is on a FAS6080, by the way. Maybe other RLMs do allow access to the command line?
I must admit I've never used the RLM. Ssh or serial console every time. The RLM just looks like a lot of hassle for no great gains.
Peta
You all are missing out ;)
That RLM gets an IP address/Netmask/DefGW/Mailhost for IP info. You then "ssh naroot@IP_of_RLM"
Now, you can do things like: cycle power on the head - just like turning the power switch at the head. switch to the console - just like using a serial session, but over IP.
No more setting up the term servers, this give much better control....
--tmac
RedHat Certified Engineer #804006984323821 (RHEL4) RedHat Certified Engineer #805007643429572 (RHEL5)
Principal Consultant
On Thu, Jan 8, 2009 at 11:27 AM, Peta Spies peta.spies@gmail.com wrote:
2009/1/8 Jan Pieter Cornet johnpc@xs4all.nl:
On Thu, Jan 08, 2009 at 04:47:51PM +0100, Filip Sneppe wrote:
I'd recommend doing it from the RLM so you still have your command-line if you made a mistake and need to revert back...
Don't you mean "from the console" ?
My RLM listens on port 22, but I'm unable to log in to it. I cannot find any other way to contact the RLM. I'm wondering who can log in to that ssh port on the RLM (but then you first need to get past the firewall).
I am able to log into the filer using ssh, via one of the normale ethernet interfaces. Or via the serial console, for that matter.
This is on a FAS6080, by the way. Maybe other RLMs do allow access to the command line?
I must admit I've never used the RLM. Ssh or serial console every time. The RLM just looks like a lot of hassle for no great gains.
Peta
On Thu, Jan 08, 2009 at 11:44:35AM -0500, tmac wrote:
You all are missing out ;)
That RLM gets an IP address/Netmask/DefGW/Mailhost for IP info. You then "ssh naroot@IP_of_RLM"
Now, you can do things like: cycle power on the head - just like turning the power switch at the head. switch to the console - just like using a serial session, but over IP.
No more setting up the term servers, this give much better control....
Thanks, everyone who replied! I can now access the RLM. The thing already had IP, but I didn't know about logging in as "naroot". Fixed now, and indeed, it offers more control than just a serial console, and it's faster.
For the benefit of the list, one of the other great things about the RLM is that it will often grab console logging in the event of a low-level hardware event, and write it to the 'system log' , events, or both.
More detail below. 'system log' is the command I'm talking about, from the RLM console (not system console)
http://now.netapp.com/NOW/knowledge/docs/ontap/rel701r1/html/ontap/sysadmin/...
--- On Thu, 1/8/09, Jan Pieter Cornet johnpc@xs4all.nl wrote:
From: Jan Pieter Cornet johnpc@xs4all.nl Subject: Re: RLM (was: Re: changing/setting flow control) To: "tmac" tmacmd@gmail.com Cc: "Peta Spies" peta.spies@gmail.com, toasters@mathworks.com Date: Thursday, January 8, 2009, 12:08 PM On Thu, Jan 08, 2009 at 11:44:35AM -0500, tmac wrote:
You all are missing out ;)
That RLM gets an IP address/Netmask/DefGW/Mailhost for
IP info.
You then "ssh naroot@IP_of_RLM"
Now, you can do things like: cycle power on the head - just like turning the power
switch at the head.
switch to the console - just like using a serial
session, but over IP.
No more setting up the term servers, this give much
better control....
Thanks, everyone who replied! I can now access the RLM. The thing already had IP, but I didn't know about logging in as "naroot". Fixed now, and indeed, it offers more control than just a serial console, and it's faster.
-- Jan-Pieter Cornet johnpc@xs4all.nl !! Disclamer: The addressee of this email is not the intended recipient. !! !! This is only a test of the echelon and data retention systems. Please !! !! archive this message indefinitely to allow verification of the logs. !!
I have upgraded filers several times across a vpn from the comfort of my couch using the RLM.
tmac wrote:
You all are missing out ;)
That RLM gets an IP address/Netmask/DefGW/Mailhost for IP info. You then "ssh naroot@IP_of_RLM"
Now, you can do things like: cycle power on the head - just like turning the power switch at the head. switch to the console - just like using a serial session, but over IP.
No more setting up the term servers, this give much better control....
--tmac
RedHat Certified Engineer #804006984323821 (RHEL4) RedHat Certified Engineer #805007643429572 (RHEL5)
Principal Consultant
On Thu, Jan 8, 2009 at 11:27 AM, Peta Spies peta.spies@gmail.com wrote:
2009/1/8 Jan Pieter Cornet johnpc@xs4all.nl:
On Thu, Jan 08, 2009 at 04:47:51PM +0100, Filip Sneppe wrote:
I'd recommend doing it from the RLM so you still have your command-line if you made a mistake and need to revert back...
Don't you mean "from the console" ?
My RLM listens on port 22, but I'm unable to log in to it. I cannot find any other way to contact the RLM. I'm wondering who can log in to that ssh port on the RLM (but then you first need to get past the firewall).
I am able to log into the filer using ssh, via one of the normale ethernet interfaces. Or via the serial console, for that matter.
This is on a FAS6080, by the way. Maybe other RLMs do allow access to the command line?
I must admit I've never used the RLM. Ssh or serial console every time. The RLM just looks like a lot of hassle for no great gains.
Peta
Thanks for the responses from following people.
tmac tmacmd@gmail.com "Ed Wilts" ewilts@ewilts.org "Filip Sneppe" filip.sneppe@gmail.com April Jenner aprilogi@yahoo.com jemans@xs4all.nl
Worked like a charm...this morning on the: Cisco switch, enable flowcontrol flowcontrol send on flowcontrol receive on
Filer, enable flowcontrol ifconfig int_name flowcontrol full update ./etc/rc files ifstat now reports full flowcontrol on the GigE interface.
There were recommendations that the Cisco port should be set first and then the filer NIC.
Thanks, George
On Thu, 08 Jan 2009 08:53:57 -0500 (EST), George Kahler george@yorku.ca wrote:
Hi guys, I would like to change/set one of the NICs on a FAS3040 to enable flow control after my Network Operations guys turn-on flow control on their switch port.
Can I just "filer> ifconfig e0a flowcontrol full" while the filer is serving data or do I need to 'down/up' the interface ?
The protocols on the filer is all nfs and some iSCSI.
Thanks, George
-
Filip Sneppe -
George Kahler -
Jack Lyons -
Jan Pieter Cornet -
Mike -
Peta Spies -
tmac