I'm curious, have you looked at IBM's System z Academic Initiative program?
https://www.ibm.com/developerworks/university/systemz/
It's been active for years, offers online training, classes at hundreds
of colleges/universities, certifications, etc. It seems to get positive
reviews. For
I turned 30 earlier this year, and I am a sysadmin since my
twenties... I think the problem is that you can buy a computer to run
Solaris, Windows, MacOS, MS-DOS, but you can't buy a computer to run
zVM. I know some Linux admins as old as me, and they are very
competent doing a reliable job,
and want only further
expansion, but as my teenage son constantly says to me, I'm just sayin'...
-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of
r.stricklin
Sent: Monday, June 04, 2012 3:07 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Run NTP
Same way we got incented. Management makes a commitment to hire, train,
and compensate zVM people. Do you see that happening in today's world of
commodity hardware, open source software, and lowest common denominator
application development?
no---and quality of students from schools are LOW... common sense gone ..
and not enough / few schools training in MF for anything ..
From: Jonathan Quay jonathan.q...@ihg.com
To: LINUX-390@VM.MARIST.EDU
Date: 06/06/2012 11:50 AM
Subject:Re: Run NTP on zLinux or not?
Sent
@vm.marist.edu
Date: 06/06/2012 09:38 AM
Subject: Re: Run NTP on zLinux or not?
Sent by: Linux on 390 Port LINUX-390@vm.marist.edu
I wouldn't mind seeing a thread about how we incent a new generation of
z/VMers to start taking over the torch.. Over the next 10 years, our
numbers are going
@VM.MARIST.EDU] On Behalf Of
r.stricklin
Sent: Monday, June 04, 2012 3:07 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Run NTP on zLinux or not?
On Jun 4, 2012, at 11:23 AM, Dean, David (I/S) wrote:
Amen. We run it on 60 plus servers, started because of a tie in to
Active Directory on about 4
VM just isn't as fun as it once was.
Perhaps, but Linux more than makes up for that :))
Mike MacIsaac mike...@us.ibm.com (845) 433-7061
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I'd suspect that just running ntpd would be a preferably option here.
Otherwise, you will get a cron awakened activity / network peak as
dozens or hundreds of servers all wake up and try to sync their time.
ntpd really is a very low impact service to run, both in terms of
network and server
Thanks Sirs Richard, John, DavidB, Rob, DavidD, Bear, Thomas, Patrick and
Madame Marcy -
I appreciate your input very much! I believe it has helped decide in
favor implementing ntpd on Linux guests in this particular instance.
A special thanks to Rob for his presentation which helped myself
On Tue, Jun 5, 2012 at 8:33 AM, Patrick Spinler
spinler.patr...@mayo.eduwrote:
I'd suspect that just running ntpd would be a preferably option here.
Otherwise, you will get a cron awakened activity / network peak as
dozens or hundreds of servers all wake up and try to sync their time.
Was having a conversation today about running Linux on System z and whether
it needed to run an NTP client -- the statement being STP is used to keep
the mainframe time in synch, so why run NTP on a Linux guest - the system
time is correct. My understanding is that Linux maintains it's own clock
Recommendation leans toward no, but is not firm.
Back before we had STP, I used to say no, then changed my story to
yes, run it. Lately not so sure.
6 or 7 or more years ago, the point was ... dozens or hundreds of
Linux guests ... do you want them all running NTP? At first, we
said no way!
Of Richard Troth
Sent: Monday, June 04, 2012 11:22 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Run NTP on zLinux or not?
Recommendation leans toward no, but is not firm.
Back before we had STP, I used to say no, then changed my story to
yes, run it. Lately not so sure.
6 or 7 or more
Running NTP everywhere wakes every guest up periodically, so you waste a fair
amount of cycles waking up to do nothing for most guests.
The clocks in Linux guests do drift slightly (even if the HW is synced to STP)
-- it's order of tenths of microseconds, but it does lose a little (barely
On Mon, Jun 4, 2012 at 6:08 PM, Scott Rohling scott.rohl...@gmail.com wrote:
Was having a conversation today about running Linux on System z and whether
it needed to run an NTP client -- the statement being STP is used to keep
the mainframe time in synch, so why run NTP on a Linux guest - the
On Mon, Jun 4, 2012 at 6:31 PM, David Boyes dbo...@sinenomine.net wrote:
The things that really care about time (like any service using Kerberos
security, or other things that use time as a salt in some other process) need
NTP because they don't work without completely accurate time.
The things that really care about time (like any service using Kerberos
security, or other things that use time as a salt in some other process) need
NTP because they don't work without completely accurate time.
Everything else can get along fine with running ntpdate once a day.
IIRC
@VM.MARIST.EDU] On Behalf Of Scott
Rohling
Sent: Monday, June 04, 2012 9:09 AM
To: LINUX-390@VM.MARIST.EDU
Subject: [LINUX-390] Run NTP on zLinux or not?
Was having a conversation today about running Linux on System z and whether
it needed to run an NTP client -- the statement being STP is used to keep
Not running it is also one more
way to make your z type of Linux different from the x type of Linux. We
really don't need any more of those.
Marcy
Yeah. What she said.
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-390@VM.MARIST.EDU] On Behalf Of David
Boyes
Sent: Monday, June 04, 2012 1:27 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Run NTP on zLinux or not?
Not running it is also one more
way to make your z type of Linux different from the x type of Linux. We
really don't need any more of those.
Marcy
Excluding Marcy, of course.
-Original Message-
From: Dean, David (I/S)
Sent: Monday, June 04, 2012 2:23 PM
To: 'Linux on 390 Port'
Subject: RE: Run NTP on zLinux or not?
Amen. We run it on 60 plus servers, started because of a tie in to Active
Directory on about 4 servers
On Jun 4, 2012, at 11:23 AM, Dean, David (I/S) wrote:
Amen. We run it on 60 plus servers, started because of a tie in to Active
Directory on about 4 servers, but continued it on all servers solely to work
and play well with others.
I had this requirement and found it sufficient to run
When we had linux on Z, we ran the ntpdate program once per day (before start of
business). On our current ESX and Oracle Virtualization (xen), we need to run
it every hour.
/Tom Kern
On 6/4/2012 12:31, David Boyes wrote:
Running NTP everywhere wakes every guest up periodically, so you waste a
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