Rogério,
That's our latest Ficon Express 8 code. I'm not sure which level of sles
10 is required for z196. If you are up to date with sles, I think it is
time to open a support request.
Regards,
Ray Higgs
System z FCP Development
Bld. 706, B42
2455 South Road
Poughkeepsie, NY 12601
(845) 435
Someone told me it is possible to run 12 Linux images on a single IFL
without the use of z/VM.
Is this true and how?
The management around here heard this statement a while back and are now
on a quest for us to create an LPAR for the IFL to run multiple Linux
images on it. I must have missed the
You may be able to run 12 LPARs on a single IFL,
but you can only run one instance of an OS on a
LPAR without VM.
Billy
On 6 Apr 2011 at 9:39, Hughes, Jim wrote:
> Someone told me it is possible to run 12 Linux images on a single IFL
> without the use of z/VM.
>
> Is this true and how?
>
> The
> -Original Message-
> From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On
> Behalf Of Hughes, Jim
> Sent: Wednesday, April 06, 2011 8:39 AM
> To: LINUX-390@VM.MARIST.EDU
> Subject: New User Linux on z10 question
>
> Someone told me it is possible to run 12 Linux images on a singl
Multiple LPARs can share an IFL... but the only way to run multiple Linux
instances in a single LPAR is using z/VM to virtualize it.
If you're really talking about one lonely IFL - you'll likely want to
dedicate it and let z/VM manage the sharing on a single LPAR.
Scott Rohling
On Wed, Apr 6,
oops - forgot about Xen.. which I believe can also virtualize? I know very
little about it on z... so should probably not have said 'the only way' ;-)
Scott Rohling
On Wed, Apr 6, 2011 at 7:58 AM, Scott Rohling wrote:
> Multiple LPARs can share an IFL... but the only way to run multiple Linux
Nobody eats just one.
Find another one. Run VM. :)
Marcy
-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@vm.marist.edu] On Behalf Of Scott
Rohling
Sent: Wednesday, April 06, 2011 6:58 AM
To: LINUX-390@vm.marist.edu
Subject: Re: [LINUX-390] New User Linux on z10 question
On Wednesday, 04/06/2011 at 09:41 EDT, "Hughes, Jim"
wrote:
> Someone told me it is possible to run 12 Linux images on a single IFL
> without the use of z/VM.
>
> Is this true and how?
>
> The management around here heard this statement a while back and are now
> on a quest for us to create an LPA
On Wed, Apr 6, 2011 at 9:39 AM, Hughes, Jim wrote:
> Someone told me it is possible to run 12 Linux images on a single IFL
> without the use of z/VM.
>
> Is this true and how?
>
Yes you can have 12 LPARs sharing a single IFL. Whether it works very well
is an "It Depends".
>
> The management ar
>>> On 4/6/2011 at 10:03 AM, Scott Rohling wrote:
> oops - forgot about Xen.. which I believe can also virtualize? I know very
> little about it on z... so should probably not have said 'the only way' ;-)
Xen won't even compile on System z, let alone run. KVM is the other option for
System z
I love it when management gets involved in technical architecture.
It may work if you share the IFL amongst 12 LPARs. How well it will work
depends on the workload.
Maybe they're talking about Zen?
Patrick Carroll | Technology Architect II
L.L.Bean, Inc.(r) | Double L St. | Freeport ME 04
>>> On 4/6/2011 at 10:13 AM, Alan Altmark wrote:
> Maybe KVM can run 12 images on an IFL *doing something useful* and
> maybe it can't. Dunno...
I have no doubt that it can, but since it's not supported, even by IBM, I
wouldn't want to do it.
Mark Post
--
>>> On 4/6/2011 at 09:44 AM, Billy Bingham
>>> wrote:
> You may be able to run 12 LPARs on a single IFL,
> but you can only run one instance of an OS on a
> LPAR without VM.
Well, there is KVM. Carsten Otte has spent a lot of time making that work on
System z. I don't know that anyone suppor
> Someone told me it is possible to run 12 Linux images on a single IFL
> without the use of z/VM.
> Is this true and how?
One thing you could do is define 12 logical partitions (LPAR). You can
define them IFL only, with shared
engines. Not that I'm advising to do so
with kind regards
Carste
Your message does'nt tell me anything about your setup. I'm guessing that
you're not using the SCSI
multipath daemon and use sdX devices directly. In that case I think you
should a) get a second path
to your device, b) setup multipath daemon, and c) use queue_if_no_path
setting to ensure that your
Thanks a lot Ray.
On Wed, Apr 6, 2011 at 10:22 AM, Raymond Higgs wrote:
> Rogério,
>
> That's our latest Ficon Express 8 code. I'm not sure which level of sles
> 10 is required for z196. If you are up to date with sles, I think it is
> time to open a support request.
>
> Regards,
>
> Ray Higgs
I am out of the office until 07.04.2011.
Ich bin auf Geschäftsreise. Bitte haben Sie Verständnis, sollte es bei
meinen Antworten zu Verzögerungen kommen. Vielen Dank.
Note: This is an automated response to your message "Re: read-only" sent
on 6/4/11 15:22:48.
This is the only notification you
While 12 LPARs can share one IFL they cannot share any memory. Each LPAR must
have its own dedicated memory. That's the main reason to run z/VM, to share
memory. When I asked why Xen did not support System z, I was told that they
didn't see any point in competing with z/VM.
Sent from my iPod
O
My guess is that management does not understand that.
Patrick Carroll | Technology Architect II
L.L.Bean, Inc.(r) | Double L St. | Freeport ME 04033
http://www.llbean.com | pcarr...@llbean.com | 207.552.2426
CONFIDENTIALITY NOTICE: This e-mail and any attachments may contain
confidentia
We are using multipath daemon Carsten...
I usem
DASD for S.O
LUNS for database files
orap103:~ # lscss
Device Subchan. DevType CU Type Use PIM PAM POM CHPIDs
--
0.0.0800 0.0. 1732/01 1731/01 yes 80 80 FF 2000
Using multipath ... good!
And creating PVs via the "coalesced" devices (under /dev/mapper) ... excellent!
Be sure to also exclude /dev/sd* from LVM scanning so that you don't
accidentally hit the individual paths directly. There is exclusion
capability in /etc/lvm/lvm.conf. See the "filter =" st
Limit for z10 is 60 LPARs, so why just only 12 Linux images on 1 IFL?
IMHO you can run 60 Linux images on 1 IFL.
--
Przemyslaw Kupisz
http://www.linkedin.com/in/pkupisz
W dniu 06.04.2011 17:44, Alan Ackerman pisze:
> While 12 LPARs can share one IFL they cannot share any memory. Each LPAR must
>
Morning all,
New linux admin here.
I have an LPAR (yes, an LPAR, no z/VM) running SLES 11 SP1 and Oracle 10g r2.
I have yet to back that up. I know, shame on me! Preferably to tape. I have
been looking and have found posts referencing mt_st and lintape. So, I am
looking for advice on
2011/4/6 Przemyslaw Kupisz :
> Limit for z10 is 60 LPARs, so why just only 12 Linux images on 1 IFL?
> IMHO you can run 60 Linux images on 1 IFL.
This kind things happens when they deliver glossy brochures to people
living under a rock...:-)
For z/OS a popular LPAR configuration rule seems to be
Another point about PR/SM:
The more LPARs you have, the higher the PR/SM 'overhead'. Which will affect
all your LPARs, not just the Linux ones.
Dave
Dave Stuart
Prin. Info. Systems Support Analyst
County of Ventura, CA
805-662-6731
david.stu...@ventura.org>>> "Rob van der Heij" 4/6
On Wed, Apr 6, 2011 at 8:14 PM, David Stuart wrote:
> Another point about PR/SM:
>
> The more LPARs you have, the higher the PR/SM 'overhead'. Which will affect
> all your LPARs, not just the Linux ones.
Not as if I were fighting on the wrong side of this, but I would
expect that most of the PR
Hello Dave,
There are several ways to backup the oracle database. I would check with
your DBA to see how they will be doing the backups. We currently backup
our database to disk then let the backup software backup the disks.
Jim Dodds
Systems Programmer/DBA
Kentucky State University
400 East Main
Weekly, we take a backup for disaster recovery.
Take the image down.
Flashcopy the disks (or backup from z/OS or z/VSE, as you don't have z/VM)
Bring image up.
For the logical backups.
I defined an NFS server which the Linux image mounts.
Nightly, I take an Oracle Backup
Using OEM:
Mainte
IBM provides solution-specific backup software; there is a TDP (Tivoli
Data Protection) for Oracle, which integrates Oracle Backups with TSM.
Guess that's safer than running manual backups.
( . . . )
For full VM backups, I guess the Flashcopy mentioned by Tom is a really
great option, indeed.
HT
Thanks Tom,
So, you defined the NFS Server on the same Linux image as the DB?
And I was wondering how you used your z/VSE System to back it up...
Thanks for the ideas.
Dave
Dave Stuart
Prin. Info. Systems Support Analyst
County of Ventura, CA
805-662-6731
david.stu...@ventura.org>
Can you define a NFS server on the same imageyour can...
You can define a lot of things on the same image...but...
Linux memory management isn't as strong as VM, VSE or MVS...so one
application can cause real problems for others. But it is doable.
No, I didn't define a NFS server on the same
BTW, the main manual involved with FTP and tape processing (in case you didn't
know):
TCP/IP for VSE User Guide: Errata
located on their website.
Tom Duerbusch
THD Consulting
>>> David Stuart 4/6/2011 3:49 PM >>>
Thanks Tom,
So, you defined the NFS Server on the same Linux image as the DB?
Thanks Tom,
A great help!
Dave
Dave Stuart
Prin. Info. Systems Support Analyst
County of Ventura, CA
805-662-6731
david.stu...@ventura.org>>> "Tom Duerbusch"
4/6/2011 2:55 PM >>>
Can you define a NFS server on the same imageyour can...
You can define a lot of things on the same ima
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