Well, Mark, thanks for this very good idea.
In fact, I already thought about that, BUT:
-what guaranties do I get that RedHat will use correctly the OSA card
at 2nd level (performance issue is not fixed)? none I guess.
-what about future upgrages of Linux images? if still using OSA card
for NFS install/upgrade, problem will be back again...
-and last but not least: I really have to install at second level of
VM.... this is the environment we provide here for tests and education...
and we'd like our customers to be able to install the way they want...
means also via NFS thru an OSA Gb adapter....
that's it!
Now, decreasing storage of my VM Guest helped a little (even if install
didn't go to the end...), so I (again) really suspect there's a problem
of defining all guests, at the different levels, defining the right amount
of storage and page space at the different levels.... And definitively,
this
is not my 'cup of tea'.
Amicalement/Best Regards...
Elisabeth Terseur/France/IBM@IBMFR
"Post, Mark K"
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
m> cc:
Sent by: Linux on Subject: Re: NFS pb while using OSA
Gigabit at 2nd level of VM
390 Port
<[EMAIL PROTECTED]
IST.EDU>
17/07/2002 23:08
Please respond to
Linux on 390 Port
I would recommend this...
Do your installation on 1st level VM. After that is complete, IPL it on
your 2nd level VM. Performance will still likely stink, but at least
you'll
have a running, er, crawling, system.
Mark Post
-----Original Message-----
From: Elisabeth Terseur [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 17, 2002 5:16 AM
To: [EMAIL PROTECTED]
Subject: Re: NFS pb while using OSA Gigabit at 2nd level of VM
Ok, I resume:
I'm testing installation of different distributions of Linux on top
of a zVM 4.2:
-SuSE Linux for S/390 version 7.2 running the 2.4.7 kernel
-RedHat Linux for S/390 version 7.2 running the 2.4.9 kernel
I'm using NFS installation mode through an OSA Gigabit card
(NB by the way, the NFS server is sharing the OSA card with the Linux
images)
-at first level of VM: no specific problem
-at second level of VM (Linux is a guest of a VM guest):
.installation of SuSE works fine, but with poorer performances
than at first level
.installation of RedHat: fails in most (> 95%) of the cases,
due to VERY VERY poor rate of the OSA card
I've tried to use an OSA Fast Ethernet card, with same result for RedHat
install.... I really suspect I did someting wrong on VM side....
which lead RedHat not to behave as well as SuSE...
But what?
Any kind of advice, somebody?
Amicalement/Best Regards...
Elisabeth Terseur/France/IBM@IBMFR
EMEA Product & Solutions Support Center
mailto:[EMAIL PROTECTED]
Phone: +33 4 67346198 (38 6198) Fax: +33 4 67346362
PSSC WEB Server: http://w3.pssc.mop.ibm.com
