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Subject: Re: Using VSWITCH and OSA
Plus, if you have two network interfaces on each guest, that doubles the
amount of real storage that gets used (and _fixed_) by the network driver.
The number of pages that get fixed is configurable, but then that's just
one
more thing to have to do for each
To: [EMAIL PROTECTED]
Subject: Re: Using VSWITCH and OSA
When you run something like SAP under Linux, a little bit more storage for
the network driver isn't an issue :-)
All the Best
Mark Perry
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Mark
Post
Hi, Tobias,
While I don't know the answer to your question, let me take a stab at what
I think you maybe asking. The failover for the VSWITCH if the OSA
connection goes down is handled by the VSWITCH and specifically the TCPIP
Controller. So whether or not the two OSAs communication with BPDU
On Wednesday, 12/15/2004 at 10:09 GMT, Tobias Doerkes
[EMAIL PROTECTED] wrote:
Question : I want to connect 2 OSA to my VSWITCH. Do the 2 OSA
communicate
via any LAYER-2 protocol (e.g. BPDU)?
No, they do not communicate. There is no load balancing or link
aggregation, either. When the
[EMAIL PROTECTED] wrote:
-- note --
This means that your backup ports can be in use on other guests, or
on other VSWITCHes.
-- note --
My question to this is, in the following scenario (which are some
query commands on our v5.1 system), how can OSA 0A00 be used elsewhere
if it needs to be
On Wednesday, 12/15/2004 at 11:05 EST, Wiggins, Mark
[EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] wrote:
-- note --
This means that your backup ports can be in use on other guests, or
on other VSWITCHes.
-- note --
My question to this is, in the following scenario (which are some
query
The single VSWITCH solution requires that both OSA's are in the same
subnet,
right? And hence the same gateway?
Yes
Must be some more limitations I can think
of (Multipath workload balancing I already mentioned)
I can't think of any, but I'll defer to the networking gurus on the list.
Mike
Hi Tobias,
This is not an answer exactly more of a question.
If you have two OSA cards why would you want to use VSWITCH High
Availability rather than a full network High Availability solution?
What I mean is why not use two VSWITCHes each connected to its own OSA in a
standard manner, and
If you have two OSA cards why would you want to use VSWITCH High
Availability rather than a full network High Availability solution?
Because it's a *lot* easier to configure?
Mike MacIsaac [EMAIL PROTECTED] (845) 433-7061
--
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Michael MacIsaac
Sent: 15 December 2004 18:02
To: [EMAIL PROTECTED]
Subject: Re: Using VSWITCH and OSA
If you have two OSA cards why would you want to use VSWITCH High
Availability rather than a full
VSWITCH looks a lot (to me) like bridged ethernet in VMware.
Seems worthwhile to draw accurate comparisons for the sake of
understanding one or the other or both.
This would make a good topic for FreeVM-L.
-- R;
--
For
Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of
Michael MacIsaac
Sent: Wednesday, December 15, 2004 12:02 PM
To: [EMAIL PROTECTED]
Subject: Re: Using VSWITCH and OSA
If you have two OSA cards why would you want to use VSWITCH High
Availability rather than a full network High
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