Hello world ...
I was running a Suse Linux Enterprise Server for S/390 version 7.
I downloaded the CD's from the Novell site wis the trial offer.
SES-9-s390-RC5a-CD1.iso and SES-9-s390-RC5-CDn.iso (n from 2 to 6)
I do not see any documentation on the Novell site for installing the Linux. (It
has changed since the 7.0 one.)
When I run the Yast2, I get the following message :
Cannot read package data from installation media. Media error?
ERROR: No proposal
What I am Missing ? Where is the package (in which directory, on wich CD ?)
:-) Laurent Dubois
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Laurent Dubois
* [EMAIL PROTECTED]
* 03 28 55 63 88 - 22 53 88
* 03 28 55 63 22 - 22 63 22
SNCF - DSIV XS MM Systeme VM
Centre Informatique de Lille
Pont de Tournai - 59041 LILLE CEDEX
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-----Message d'origine-----
De : Linux on 390 Port [mailto:[EMAIL PROTECTED]
Envoyé : mardi 25 avril 2006 15:41
À : [email protected]
Objet : Re: VSAM Adapters for Linux on zSeries
Thanks for the info, we're looking at this a method.
Comments of engine cycles do concern me though, we'll look into how much and if
it's worth it.
If anyone has other idea's for accessing VSAM files from Linux please add to
the thread any/all comment are very much appreciated
Doug Carroll
David Boyes
<[EMAIL PROTECTED] To:
[email protected]
e.net> cc:
Sent by: Linux on Subject: Re: VSAM Adapters for
Linux on zSeries
390 Port
<[EMAIL PROTECTED]
IST.EDU>
04/22/2006 06:34
AM
Please respond to
Linux on 390 Port
> It is basic R/W access to VSAM files to read the data into a Linux app
then
> write it back out
> The main thing is performance. part of the process must remain on zOS
>so the LOB doesn't want to pay for 2 sets of dasd of course so we want
>to access the data inplace. We're going to use zOS NFS for the
>flatfiles they need to NFS on RH
Linux
> from the sound of it your saying that i could possible fire up the VM
> NFS CLIENT. Connect to zOS NFS server right?
> So does that mean i need yet another NFS connection between VM and Linux
or
> can I access the NFS
> as a minidisk?
Depending on what VSAM access you need (it's limited to sequential access, none
of the fancy stuff), that might just work fine.
You could mount the VSAM file via the CMS NFS client, but that would present it
as a BFS/SFS style thing, which Linux can't cope with. The z/OS NFS server
presents VSAM files as just another filesystem that can be mounted by any NFS
client, so if the data is going to end up in Linux, skip the step through VM
and mount it directly from the Linux NFS client. You need only a way to get IP
packets back and forth between the Linux NFS client and the z/OS system (which
sounds like you already have).
Check out the z/OS NFS server documentation for info on the restrictions with
VSAM files to make sure you can live with them, and then try it directly from
Linux. z/OS handles all the VSAM processing, so you should be pretty much there
if all you need is simple sequential processing.
Performance will be a question -- it's only going to be as good as the network
connection between z/OS and the client, and you do have to do all the VSAM
processing on z/OS, so it's going to cost you lots of standard engine cycles to
do it. If you can live with that, OK, but they should be aware of that extra
cost.
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