Frank,
I've been seeing your posts and there have been
a lot of posts about Bennie. Also several about
CICS/VSE on z/VSE 4.3.
Google groups for me shows the last post on June
26.
Billy
On 29 Jun 2011 at 8:48, Frank M. Ramaekers
wrote:
There hasn´t been any postings on the VSE-L
Hello,
When setting up EDEVs, is it preferable to use a unique FCP subchannel
per EDEV or to use a single FCP subchannel for multiple EDEVs?
I multi path each EDEV across all my FCP CHPIDS and they are used in a
single LPAR, so I'm not sure it matters?
Thanks.
John Hanley
Hi John,
I can't speak as to what's absolutely best, but I can tell you that in our
environment we use a single set of multipathed FCP subchannels with access
to multiple LUNs for our EDEVs. The EDEVs are then shared between 60 or so
guests per LPAR without any issue.
-Daniel Bewley
On Thu,
Thanks Daniel.
That's kinda what I thought. And these are not even NPIV'ed (just 1 LPAR).
John Hanley
(804) 786-7823
Daniel Bewley ---06/30/2011 10:12:51 AM---Daniel Bewley daniel.bew...@gmail.com
Daniel Bewley daniel.bew...@gmail.com
Sent by: The IBM z/VM Operating System
For scalability, no. In fact, since the I/O is per channel and not per
subchannel, you gain little from spearding EDEVs across subchannels.
At one point early in a prior life, I tried pinning each EDEV on its own
pair of FCP subchans. Was a pain!
-- R;
Velocity Software
