Re: Anyone using DCSSs > 2G?

2009-06-13 Thread Marc Schoechlin
Hi :-)

On Fri, Jun 12, 2009 at 11:33:56AM -0400, Xenia Tkatschow wrote:
> Hi list, 
> Is anyone using the DCSS >2G support introduced in z/VM 5.4? I'm interested 
> in knowing how you are using it.  You can respond here or you can contact me 
> offline at xe...@us.ibm.com. Thanks! 

I have tested it ;-)

Best regards 
Marc Schöchlin
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Re: sles11 zipl multipath /boot problem

2009-05-28 Thread Marc Schoechlin
Hi John,

On Wed, May 27, 2009 at 03:48:00PM -0400, Romanowski, John (OFT) wrote:
> On a z10 I have a sles 11 with multipath /boot LUN and a separate multipath / 
> LUN
>
> sles 11 Storage Guide says sles 11 supports a multipath /boot:
> "DM-MP is now available and supported for /boot and /root in SUSE Linux 
> Enterprise Server 11."  (Which I think means zipl can now write the scsi 
> bootloader to a multipath LUN.)

unluckily, it's a long time ago i played around with scsi/fcp on z Series - but 
if i remember correctly,
there it is no possibility to use zipl on a multipath device (i.e. 
/dev/mpath0).

As i can remember, a working procedure was:
- Boot the system from a single path without any multipathing
- Execute "zipl"
- Boot the zipl-entry with enabled multipathing

Maybe recent/future releases of the s390-tools include support for zipl on 
mpath-devices.

Best regards
Marc Schoechlin

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Re: AW: Good editor for under the 3270 console interface

2009-01-30 Thread Marc Schoechlin
Hi,

On Thu, Jan 29, 2009 at 08:41:23AM -0600, Dave Jones wrote:
> I believe IBM is working on a piece of Linux software that will allow ASCII 
> (SSH) logons to z/VM Linux guests that do not have networking available, 
> using the IUCV device driver. to drive the Linux console interface from 
> another Linux guest that does have networking up. I haven't heard anything 
> about when such a capability will be available, though.

thats true - this support is already in the mainline kernel.

See: 
http://kerneltrap.org/index.php?q=mailarchive/git-commits-head/2008/12/28/4516104

But I think there is currently no user-space console application available 
on developerworks.
Maybe writing a simple iucv socket client would provide a temporary
solution...

Best regards
Marc Schöchlin
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