Ahhh now comes my problem.

Oracle itself creates ETH0:1 (ie: it's not defined in the 
/etc/sysconfig/network-scripts file where ETH0 and ETH1 are defined )


So .. it maybe better to create an Oracle only subnet and Oracle only 
Vswitch then support 1/2 of the subnet on each system ... 

Seems link these systems need to be in the same subnet ... 

-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Szefler Jakub
Sent: Wednesday, April 16, 2008 8:58 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Vswitch and subnets

I suggest using the same  Network for Oracle VIP on both sides.

You need to :

System A
Home address   192.168.127.1     ETH0
Oracle VIP        192.168.128.1     ETH1
Oracle Priv        192.168.87.1     ETH2

System B
Home address   192.168.127.2     ETH0
Oracle VIP        192.168.128.2     ETH1
Oracle Priv        192.168.87.2     ETH2


Jakub Szefler 
Administrator MainFrame 
Pion Operacji IT Grupy TP/Departament Infrastruktury
Wydział Infrastruktury Informatycznej

Dział Mainframe 
__________________________________________________________________ 
Treść tej wiadomości zawiera informacje przeznaczone tylko dla adresata. 
Jeżeli nie jesteście Państwo jej adresatem, bądź otrzymaliście ją przez 
pomyłkę, prosimy o powiadomienie o tym nadawcy oraz trwałe jej usunięcie


-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Ayer,
Paul W
Sent: Wednesday, April 16, 2008 2:26 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Vswitch and subnets

Good morning,

Running Oracle RAC and having a problem with supporting the way Oracle
does VIP address fail over.

This environment has two z9 systems running z/VM 5.3 with Vswitch on
each and a linux (rhel 44).

On each z/VM the Vswitch is setup to support a specific subnet.

Vswitch on System A side supports 192.168.127.*

Vswitch on System B side supports 192.168.87.*

Oracle on linux on system A has

              Home address   192.168.127.1     ETH0
              Oracle VIP        192.168.127.2     ETH0:1
              Oracle Priv        192.168.127.3     ETH1

Oracle on linux on system B has

              Home address   192.168.87.1     ETH0
              Oracle VIP        192.168.87.2     ETH0:1
              Oracle Priv        192.168.87.3     ETH1


* The problem;

If something happens on the system A side and access is lost (at any
level) Oracle on the system B side brings up via ETH0:2
the VIP address of the lost system.

So now system B linux looks like this;

           Home address   192.168.87.1     ETH0
           Oracle VIP        192.168.87.2     ETH0:1
           Oracle VIP       192.168.127.2   ETH0:2
           Oracle Priv        192.168.87.3     ETH1


A Q VSWITCH DET shows the 192.168.127.2 address known in the Vswitch,
but it can not be routed to.

Is there anything that can be done in he Vswitch to help advertise just
this address only, since all the other 192.168.127.* addresses
are still on the other system...

Thank you,
Paul...
 

----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or
visit
http://www.marist.edu/htbin/wlvindex?LINUX-390

----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit
http://www.marist.edu/htbin/wlvindex?LINUX-390

----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit
http://www.marist.edu/htbin/wlvindex?LINUX-390

Reply via email to