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  3. December 2021

RE: Admin Servers

+1.
The only issue I have with the Admin servers running is during the BRMS daily full save.
Many locks/errors occur if the servers are running during the save.
In my AJS job the save, I stop before the save, restart them after the save.

ENDTCPSVR SERVER(*HTTP) HTTPSVR(*ADMIN)
STRBKUBRM CTLGRP(SAVFULL05) SBMJOB(*NO) APPEND(*NO) ACTIVITY(*CTLGRPATR) RETENTION(*DAYS 45)
STRTCPSVR SERVER(*HTTP) HTTPSVR(*ADMIN)

Paul


-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Larry "DrFranken" Bolhuis
Sent: Monday, December 27, 2021 9:43 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>; Brad Stone <bvstone@xxxxxxxxx>
Subject: Re: Admin Servers

The difference with your car though is that about 2 seconds after you start it you can drive off. Or in the case of my hybrids, I'm half way or further up the driveway before the engine even decides to start and if driven recently I can be 1/4 mile away at the stop sign before the ICE is needed. BUT, leave it running and you burn gas doing nothing.

Contrast that to the *ADMIN servers where they take significant effort to start and aren't usable until they are fully going. This can be several minutes on most servers. However once running they take zero resources when they are not being used so leaving them running is a great idea.

Thus they are more like the old 2-Cyl John Deere's I spent so much time on in my youth. Several minutes checking all the fluid levels and looking for leaks or low tires. Then crank up the pony motor and let that smooth out, then hold the compression release as you rolled the diesel over until it had oil pressure, then release that and fire up the diesel. Then of course shut down the pony motor because it was noisy and smokey and only had a 1qt tank. A minimum of 10 knobs, levers, or buttons required to make that thing go from silent to moving! And since it was a diesel it would idle for hours on next to zero fuel so it was left idling a lot if it was to be used again soon. :-)

On 12/27/2021 9:19 AM, Brad Stone wrote:
Well of course if you're using something behind the admin servers you
would leave it running... if it's infrequent you could start them up
at that point and shut them down when done (which a lot of my
customers do because I have to start it often).

It's like saying "should I leave my car running all the time?" The
answer would be no... unless you are going somewhere and using the
car. Of course you would have it running then. But the latter doesn't need to be said.


On Mon, Dec 27, 2021 at 7:15 AM Rob Berendt <rob@xxxxxxxxx> wrote:

I agree with Larry.
Not only for administration but also for the general user population.
For those who prefer a web interface over the GUI part of iACS, or
for those functions not in the GUI part of iACS.

Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600
Mail to: 7310 Innovation Blvd, Suite 104
Ft. Wayne, IN 46818
Ship to: 7310 Innovation Blvd, Dock 9C
Ft. Wayne, IN 46818
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38b0784514c1757bd202125ca4db8b0abdb021e-5eaa2e9ab69d1b38208ae35cda346
74376694e07


-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of
Larry "DrFranken" Bolhuis
Sent: Thursday, December 23, 2021 2:15 PM
To: Midrange Systems Technical Discussion
<midrange-l@xxxxxxxxxxxxxxxxxx>; Brad Stone <bvstone@xxxxxxxxx>
Subject: Re: Admin Servers

CAUTION: This email originated from outside of the organization. Do
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Respectfully: Incorrect, or at least partly so, answer.

On a single sever with one partition, certainly incorrect, as you
lose all visibility to peformance, graphing, and any administration
functions that it provides. If you are more than 65 years old this
might be OK mostly, but for younger admins losing the GUI is
generally not a good thing. Some will argue that 'I can do everything
needed on a green screen,' and much you can, it's just harder and you
get to see a teeny window not a huge ass window into your system.

For example, can you look at a joblog for a running job in the green
screen? Sure. Can you search it? No.

Can you display spooled files as a PDF in the green screen? No.

Can you subset active jobs with just a few keystrokes on the green
screen? No.

Can you do ANY performance investigation whatever on the green screen? No.

And certainly the list simply goes on and on and on.

Now, if you have multiple partitions and/or servers then the admin
servers need only be running on one system, as you can manage many
systems from the admin servers running on one system in your data
center. The actual management of the target server is done through
the host servers not through the admin server.

- DrF

On 12/23/2021 1:51 PM, Brad Stone wrote:
No.


On Thu, Dec 23, 2021 at 12:50 PM Greg Wilburn <
gwilburn@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

Is there any reason to have the Admin HTTP server(s) running all
the
time?



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