Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Alan Altmark 
On Wednesday, 10/07/2020 at 07:49 GMT, "Davis, Larry (National VM 
Capability)"  wrote:
> Really need a way to link SSI member VM systems over something other 
than CTCA
> only connections.
> Allowing Remote VM systems like DR sites to participate in a SSI complex
>
> Wishful thinking?

Yes, it is.  You cannot have long-distance connections in an SSI cluster 
because of the shared DASD.

And I agree that a replacement is needed for the CTCs.  Now that we have 
the IVL (Inter-VSWITCH Link) capability that allows CP instances to 
participate in a multicast group, the goal is feasible.  But it remains a 
metro solution.

Alan Altmark

Senior Managing z/VM and Linux Consultant
IBM Systems Lab Services
IBM Z Delivery Practice
ibm.com/systems/services/labservices
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com
IBM Endicott


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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Marcy Cortes 

>I'm also beginning to detect a pattern in DR environments:  The z/VM 
>systems themselves aren't replicated.  There is as often as not a 
>cold/warm/hot z/VM system already in the DR site with a site-specific 
>configuration.  Linux data is replicated, plus any "utility" data used by 
>the sysprogs.

That's a little scary.  directory updates better be there and no one had better 
mistakenly put a Linux disk on a VM non-replicated volume.

Marcy


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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Anderson Augusto 
 ^C 
Regards,Anderson
Em quarta-feira, 7 de outubro de 2020 13:53:53 BRT, Alan Altmark 
 escreveu:  
 
 On Tuesday, 10/06/2020 at 08:30 GMT, David Boyes  
wrote:
> Or make sure you set a unique MAC address for each network adapter in 
the CP
> directory and use DHCP to assign a static address to each MAC address.

Ding ding ding ding ding!  I recommend the use of persistent DHCP to all 
my clients, even though it means you have to manage static MAC 
assignments.  (I use a DIRMAINT exit to assign MAC addresses to each 
interface.)  I have talked up DHCP's ability to use a user ID instead of a 
MAC address, as Ray describes, but it makes very little impact since 
"that's not how we do things here".

> It's long overdue for the mainframe network stacks to permit this method 
of
> address management. DHCP/DHCP6 is reliable, highly scalable and handles 
static
> address assignments with ease. It handles both IPv4 and IPv6 easily and 
is one
> less unique thing about mainframes -- it's what the distributed folks 
use for
> their environments at massive scale. Why be pointlessly 
difficult/different?
> The VM, VSE and TPF stacks are all layer 2 capable, and could easily be
> convinced to act as DHCP clients.

IMO, the ease of making VM TCP/IP come up with a different configuration 
file based on external criteria eliminates the need for a DHCP client.  I 
wouldn't mind it, but there are bigger fish to fry.

I'm also beginning to detect a pattern in DR environments:  The z/VM 
systems themselves aren't replicated.  There is as often as not a 
cold/warm/hot z/VM system already in the DR site with a site-specific 
configuration.  Linux data is replicated, plus any "utility" data used by 
the sysprogs.

Alan Altmark

Senior Managing z/VM and Linux Consultant
IBM Systems Lab Services
IBM Z Delivery Practice
ibm.com/systems/services/labservices
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com
IBM Endicott


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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Davis, Larry (National VM Capability) 
Really need a way to link SSI member VM systems over something other than CTCA 
only connections.
Allowing Remote VM systems like DR sites to participate in a SSI complex

Wishful thinking?

Larry Davis (z/VM Team)

-Original Message-
From: Linux on 390 Port  On Behalf Of Alan Altmark
Sent: Wednesday, October 7, 2020 12:53 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

On Tuesday, 10/06/2020 at 08:30 GMT, David Boyes 
wrote:
> Or make sure you set a unique MAC address for each network adapter in
the CP
> directory and use DHCP to assign a static address to each MAC address.

Ding ding ding ding ding!  I recommend the use of persistent DHCP to all my 
clients, even though it means you have to manage static MAC
assignments.   (I use a DIRMAINT exit to assign MAC addresses to each
interface.)  I have talked up DHCP's ability to use a user ID instead of a MAC 
address, as Ray describes, but it makes very little impact since "that's not 
how we do things here".

> It's long overdue for the mainframe network stacks to permit this
> method
of
> address management. DHCP/DHCP6 is reliable, highly scalable and
> handles
static
> address assignments with ease. It handles both IPv4 and IPv6 easily
> and
is one
> less unique thing about mainframes -- it's what the distributed folks
use for
> their environments at massive scale. Why be pointlessly
difficult/different?
> The VM, VSE and TPF stacks are all layer 2 capable, and could easily
> be convinced to act as DHCP clients.

IMO, the ease of making VM TCP/IP come up with a different configuration file 
based on external criteria eliminates the need for a DHCP client.  I wouldn't 
mind it, but there are bigger fish to fry.

I'm also beginning to detect a pattern in DR environments:  The z/VM systems 
themselves aren't replicated.  There is as often as not a cold/warm/hot z/VM 
system already in the DR site with a site-specific configuration.  Linux data 
is replicated, plus any "utility" data used by the sysprogs.

Alan Altmark

Senior Managing z/VM and Linux Consultant IBM Systems Lab Services IBM Z 
Delivery Practice ibm.com/systems/services/labservices
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com
IBM Endicott


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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread David Boyes 
On 10/7/20, 12:53 PM, "Linux on 390 Port on behalf of Alan Altmark" 
 wrote:

> I have talked up DHCP's ability to use a user ID instead of a 
> MAC address

Option 61 (the DHCP option that allows the string option) can be any unique 
arbitrary string. It can be used to request information for point-to-point 
links that are not broadcast capable as long as there is one broadcast-capable 
address available to locate the DHCP server. The DHCP server gets the string 
and does its thing so 'mysystem-hsi1' or 'mysystem-ctc0' is a perfectly valid 
use of the capability. 

> IMO, the ease of making VM TCP/IP come up with a different configuration 
> file based on external criteria eliminates the need for a DHCP client. 

In a limited way, but why have to remember to do it or fool around with 
node/system name qualifiers in TCPIP CONFIG if there is a way to not have to 
change anything and have it Just Work AND be consistent with every other host 
and address management process in the whole world? Seems like one big battle we 
don't need to fight. 

It would also let you ship a completely functional TCPIP out of the box, no 
configuration required - just plug in the OSA, attach it to TCPIP at a 
predefined address and you're up and running. Think of the documentation pages 
saved... __

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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Paul Gilmartin 
On 2020-10-07, at 08:26:14, Duane Beyer wrote:
> 
> Shift ^   works on most emulators.   (Shift 6)
>  
Errr... Then how does one grep for a line beginning with 'C'?

(In OMVS it's (by default) '¢C'.)


> -Original Message-
> From: Frank M. Ramaekers
> Sent: Wednesday, October 7, 2020 9:40 AM
> 
> Thanks...ah, how to stop a ping w/o Ctrl-C?  (z/VM console of zLinux)

-- gil

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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Alan Altmark 
On Tuesday, 10/06/2020 at 08:30 GMT, David Boyes  
wrote:
> Or make sure you set a unique MAC address for each network adapter in 
the CP
> directory and use DHCP to assign a static address to each MAC address.

Ding ding ding ding ding!  I recommend the use of persistent DHCP to all 
my clients, even though it means you have to manage static MAC 
assignments.   (I use a DIRMAINT exit to assign MAC addresses to each 
interface.)  I have talked up DHCP's ability to use a user ID instead of a 
MAC address, as Ray describes, but it makes very little impact since 
"that's not how we do things here".

> It's long overdue for the mainframe network stacks to permit this method 
of
> address management. DHCP/DHCP6 is reliable, highly scalable and handles 
static
> address assignments with ease. It handles both IPv4 and IPv6 easily and 
is one
> less unique thing about mainframes -- it's what the distributed folks 
use for
> their environments at massive scale. Why be pointlessly 
difficult/different?
> The VM, VSE and TPF stacks are all layer 2 capable, and could easily be
> convinced to act as DHCP clients.

IMO, the ease of making VM TCP/IP come up with a different configuration 
file based on external criteria eliminates the need for a DHCP client.  I 
wouldn't mind it, but there are bigger fish to fry.

I'm also beginning to detect a pattern in DR environments:  The z/VM 
systems themselves aren't replicated.  There is as often as not a 
cold/warm/hot z/VM system already in the DR site with a site-specific 
configuration.  Linux data is replicated, plus any "utility" data used by 
the sysprogs.

Alan Altmark

Senior Managing z/VM and Linux Consultant
IBM Systems Lab Services
IBM Z Delivery Practice
ibm.com/systems/services/labservices
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com
IBM Endicott


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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Frank M. Ramaekers 
Ahh Caret-C works...thanks all!

Frank M. Ramaekers Jr.
Unisys | Systems Senior Administrator


-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Paul 
Gilmartin
Sent: Wednesday, October 7, 2020 9:40 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

On 2020-10-07, at 08:26:14, Duane Beyer wrote:
> 
> Shift ^   works on most emulators.   (Shift 6)
>  
Errr... Then how does one grep for a line beginning with 'C'?

(In OMVS it's (by default) '¢C'.)


> -Original Message-
> From: Frank M. Ramaekers
> Sent: Wednesday, October 7, 2020 9:40 AM
> 
> Thanks...ah, how to stop a ping w/o Ctrl-C?  (z/VM console of zLinux)

-- gil

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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Frank M. Ramaekers 
No joy:

>From 10.25.60.88 icmp_seq=3693 Destination Host Unreachable 
^   

>From 10.25.60.88 icmp_seq=3694 Destination Host Unreachable 
>From 10.25.60.88 icmp_seq=3695 Destination Host Unreachable 
>From 10.25.60.88 icmp_seq=3696 Destination Host Unreachable 
>From 10.25.60.88 icmp_seq=3697 Destination Host Unreachable 
>From 10.25.60.88 icmp_seq=3698 Destination Host Unreachable

Frank M. Ramaekers Jr.
Unisys | Systems Senior Administrator


-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Duane 
Beyer
Sent: Wednesday, October 7, 2020 9:26 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

Shift ^   works on most emulators.   (Shift 6)

Duane

-Original Message-
From: Linux on 390 Port  On Behalf Of Frank M. 
Ramaekers
Sent: Wednesday, October 7, 2020 9:40 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

Thanks...ah, how to stop a ping w/o Ctrl-C?  (z/VM console of zLinux)

Frank M. Ramaekers Jr.
Unisys | Systems Senior Administrator

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Marcy 
Cortes
Sent: Tuesday, October 6, 2020 12:38 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

You can do something like
sed -i -e 's/16/24/g'  filename

Or you can change the info with the IP command, and then get in and fix with VI

 

-Original Message-
From: Linux on 390 Port  On Behalf Of Frank M. 
Ramaekers
Sent: Tuesday, October 6, 2020 8:07 AM
To: LINUX-390@VM.MARIST.EDU
Subject: [LINUX-390] Modify ifcfg-encw0.0. at DR

How can I change the IP address of a network adapter at D/R.  Since the IP 
address is unusable, I cannot ssh to the machine.   Attempting vi from the VM 
console is a mess.
I have two lines to change:

IPADDR="10.1.20.88"
PREFIX="16"(to 24)

Ideas?

Frank M. Ramaekers Jr.  | Systems Senior Administrator | CIS Mainframe Services 
Unisys | (512)-387-3949 | Francis.Ramaekers at Unisys.Com

[unisys_logo]

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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Duane Beyer 
Thank you Jay,   I should never try to answer a question before I finish my 
coffee. 

Original Message-
From: Linux on 390 Port  On Behalf Of Robert J 
Brenneman
Sent: Wednesday, October 7, 2020 10:52 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

^c

On Wed, Oct 7, 2020 at 10:21 AM Frank M. Ramaekers 
 wrote:

> Thanks...ah, how to stop a ping w/o Ctrl-C?  (z/VM console of zLinux)
>
> Frank M. Ramaekers Jr.
> Unisys | Systems Senior Administrator
>
> -Original Message-
> From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of 
> Marcy Cortes
> Sent: Tuesday, October 6, 2020 12:38 PM
> To: LINUX-390@VM.MARIST.EDU
> Subject: Re: Modify ifcfg-encw0.0. at DR
>
> You can do something like
> sed -i -e 's/16/24/g'  filename
>
> Or you can change the info with the IP command, and then get in and 
> fix with VI
>
>
>
> -Original Message-
> From: Linux on 390 Port  On Behalf Of Frank M.
> Ramaekers
> Sent: Tuesday, October 6, 2020 8:07 AM
> To: LINUX-390@VM.MARIST.EDU
> Subject: [LINUX-390] Modify ifcfg-encw0.0. at DR
>
> How can I change the IP address of a network adapter at D/R.  Since the IP
> address is unusable, I cannot ssh to the machine.   Attempting vi from the
> VM console is a mess.
> I have two lines to change:
>
> IPADDR="10.1.20.88"
> PREFIX="16"(to 24)
>
> Ideas?
>
> Frank M. Ramaekers Jr.  | Systems Senior Administrator | CIS Mainframe 
> Services Unisys | (512)-387-3949 | Francis.Ramaekers at Unisys.Com
>
> [unisys_logo]<
> https://urldefense.com/v3/__http://www.unisys.com/__;!!GePVz-XrgrDUrw!
> -tiviulffBRGTxzlmMzu8tHJGRCV5R7KmhKXIYwbZZxr9H4kxHXRdwYddUOfGPnx$
> >
>
> THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE 
> PROPRIETARY MATERIAL and is for use only by the intended recipient. If 
> you received this in error, please contact the sender and delete the 
> e-mail and its attachments from all devices.
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> https://urldefense.com/v3/__http://www.youtube.com/theunisyschannel__;
> !!GePVz-XrgrDUrw!-tiviulffBRGTxzlmMzu8tHJGRCV5R7KmhKXIYwbZZxr9H4kxHXRd
> wYddbM4QzoF$
> > [Grey_FB] <
> https://urldefense.com/v3/__http://www.facebook.com/unisyscorp__;!!GeP
> Vz-XrgrDUrw!-tiviulffBRGTxzlmMzu8tHJGRCV5R7KmhKXIYwbZZxr9H4kxHXRdwYddT
> xTY6ce$
> > [Grey_Vimeo] <
> https://urldefense.com/v3/__https://vimeo.com/unisys__;!!GePVz-XrgrDUr
> w!-tiviulffBRGTxzlmMzu8tHJGRCV5R7KmhKXIYwbZZxr9H4kxHXRdwYddYO3kj4Z$
> > [Grey_UB] <
> https://urldefense.com/v3/__http://blogs.unisys.com/__;!!GePVz-XrgrDUr
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--
Jay Brenneman

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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Robert J Brenneman 
^c

On Wed, Oct 7, 2020 at 10:21 AM Frank M. Ramaekers
 wrote:

> Thanks...ah, how to stop a ping w/o Ctrl-C?  (z/VM console of zLinux)
>
> Frank M. Ramaekers Jr.
> Unisys | Systems Senior Administrator
>
> -Original Message-
> From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of
> Marcy Cortes
> Sent: Tuesday, October 6, 2020 12:38 PM
> To: LINUX-390@VM.MARIST.EDU
> Subject: Re: Modify ifcfg-encw0.0. at DR
>
> You can do something like
> sed -i -e 's/16/24/g'  filename
>
> Or you can change the info with the IP command, and then get in and fix
> with VI
>
>
>
> -Original Message-
> From: Linux on 390 Port  On Behalf Of Frank M.
> Ramaekers
> Sent: Tuesday, October 6, 2020 8:07 AM
> To: LINUX-390@VM.MARIST.EDU
> Subject: [LINUX-390] Modify ifcfg-encw0.0. at DR
>
> How can I change the IP address of a network adapter at D/R.  Since the IP
> address is unusable, I cannot ssh to the machine.   Attempting vi from the
> VM console is a mess.
> I have two lines to change:
>
> IPADDR="10.1.20.88"
> PREFIX="16"(to 24)
>
> Ideas?
>
> Frank M. Ramaekers Jr.  | Systems Senior Administrator | CIS Mainframe
> Services Unisys | (512)-387-3949 | Francis.Ramaekers at Unisys.Com
>
> [unisys_logo]<
> https://urldefense.com/v3/__http://www.unisys.com/__;!!GePVz-XrgrDUrw!-tiviulffBRGTxzlmMzu8tHJGRCV5R7KmhKXIYwbZZxr9H4kxHXRdwYddUOfGPnx$
> >
>
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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Duane Beyer 
Shift ^   works on most emulators.   (Shift 6)

Duane

-Original Message-
From: Linux on 390 Port  On Behalf Of Frank M. 
Ramaekers
Sent: Wednesday, October 7, 2020 9:40 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

Thanks...ah, how to stop a ping w/o Ctrl-C?  (z/VM console of zLinux)

Frank M. Ramaekers Jr.
Unisys | Systems Senior Administrator

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Marcy 
Cortes
Sent: Tuesday, October 6, 2020 12:38 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

You can do something like
sed -i -e 's/16/24/g'  filename

Or you can change the info with the IP command, and then get in and fix with VI

 

-Original Message-
From: Linux on 390 Port  On Behalf Of Frank M. 
Ramaekers
Sent: Tuesday, October 6, 2020 8:07 AM
To: LINUX-390@VM.MARIST.EDU
Subject: [LINUX-390] Modify ifcfg-encw0.0. at DR

How can I change the IP address of a network adapter at D/R.  Since the IP 
address is unusable, I cannot ssh to the machine.   Attempting vi from the VM 
console is a mess.
I have two lines to change:

IPADDR="10.1.20.88"
PREFIX="16"(to 24)

Ideas?

Frank M. Ramaekers Jr.  | Systems Senior Administrator | CIS Mainframe Services 
Unisys | (512)-387-3949 | Francis.Ramaekers at Unisys.Com

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Re: Modify ifcfg-encw0.0.nnnn at DR

2020-10-07 Thread Frank M. Ramaekers 
Thanks...ah, how to stop a ping w/o Ctrl-C?  (z/VM console of zLinux)

Frank M. Ramaekers Jr.
Unisys | Systems Senior Administrator

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Marcy 
Cortes
Sent: Tuesday, October 6, 2020 12:38 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Modify ifcfg-encw0.0. at DR

You can do something like
sed -i -e 's/16/24/g'  filename

Or you can change the info with the IP command, and then get in and fix with VI

 

-Original Message-
From: Linux on 390 Port  On Behalf Of Frank M. 
Ramaekers
Sent: Tuesday, October 6, 2020 8:07 AM
To: LINUX-390@VM.MARIST.EDU
Subject: [LINUX-390] Modify ifcfg-encw0.0. at DR

How can I change the IP address of a network adapter at D/R.  Since the IP 
address is unusable, I cannot ssh to the machine.   Attempting vi from the VM 
console is a mess.
I have two lines to change:

IPADDR="10.1.20.88"
PREFIX="16"(to 24)

Ideas?

Frank M. Ramaekers Jr.  | Systems Senior Administrator | CIS Mainframe Services 
Unisys | (512)-387-3949 | Francis.Ramaekers at Unisys.Com

[unisys_logo]

THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
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error, please contact the sender and delete the e-mail and its attachments from 
all devices.
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 [Grey_UB] 


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