The vswitch counts as 1 stack on the OSA, no matter how many systems are
behind it. So yes - it gets you around the 640 stacks per OSA issue. That
limitation came from the number of subchannels you could generate on the OSA
chpid itself. I think it's even higher than 640 for the recent z10 and the
Does this approach get around the stack limit some way? If we try to
put
800
machines on a VLAN, will this blow the limit referenced below?
The layer 2 TYPE ETHERNET VSWITCH gets the OSA limits out of the line of
fire entirely -- the OSA(s) (note multiple) servicing the VSWITCH just
forward
The z9, with updated OSA microcode, can also run the OSA port in
shared layer 2 and layer 3 mode..
On Thu, Aug 7, 2008 at 11:16 AM, David Boyes [EMAIL PROTECTED] wrote:
Downside is that unless you have a z10, I don't think you can have a OSA
card in layer 3 and layer 2 mode simultaneously, so
The z9, with updated OSA microcode, can also run the OSA port in
shared layer 2 and layer 3 mode..
Nifty. Thanks -- one of these days I'll get my brain upgraded for more
short term storage. 8-)
--db
I see this update in the online version of
http://publibz.boulder.ibm.com/epubs/pdf/ioa2z150.pdf (see p. 12):
Beginning with the May 2006 version of Licensed Internal Code on
z890, z990 and z9 systems only, this restriction has been lifted. With
this version of Licensed Internal Code, a layer 2
On Thursday, 08/07/2008 at 11:00 EDT, Robert J Brenneman
[EMAIL PROTECTED] wrote:
The vswitch counts as 1 stack on the OSA, no matter how many systems are
behind
it. So yes - it gets you around the 640 stacks per OSA issue. That
limitation
came from the number of subchannels you could
Did I read somewhere (the where being a place I cannot at this point
locate) that the number of IP stacks which could be associated with a single
OSA adapter was 640? Running several thousand desktop systems on System z
is meaningful only if those operating systems can access a (the) network.
Is
Will using VSWITCH get us around the 640 limit per OSA adapter?
--. .- .-. -.--
Gary Dennis
On 8/6/08 1:35 PM, Mark Post [EMAIL PROTECTED] wrote:
On 8/6/2008 at 2:24 PM, in message
[EMAIL PROTECTED],
Gary M. Dennis [EMAIL PROTECTED] wrote:
Did I read somewhere (the where being a place
On Wed, Aug 6, 2008 at 8:35 PM, Mark Post [EMAIL PROTECTED] wrote:
Is that stack association limit correct? If this is the case, is there a
circumvention? Can multiple OSA adapters be associated with a single VLAN?
Use a VSWITCH, since you've already decided this is going to be run on z/VM.
On Wednesday, 08/06/2008 at 04:42 EDT, Rob van der Heij
[EMAIL PROTECTED] wrote:
On Wed, Aug 6, 2008 at 8:35 PM, Mark Post [EMAIL PROTECTED] wrote:
Is that stack association limit correct? If this is the case, is
there a
circumvention? Can multiple OSA adapters be associated with a
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