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I have 1 segment, on which I am trying to set up oracle rac. On this segment, I have two public ip's, which both need to be activated on this one segment for my two oracle guest to communicate. I also have 1 gateway on this segment, 2vip ip's. When i set up the first guest ( guest a ), I can connect via telnet, ssh, putty Vic , etc. however I cannot get to the second guest , and in fact I cannot get the network to see it.
I have only 1nic on our z/vm... My etc/hosts is correct, my /etc/sysconfig/network looks right, and my .../ifcfg-eth0 looks ok... I think. But I obviously have something wrong.
To complicate things, I am doing this with zlinux, on z/vm (mainframe).
For a config like this do I 'need' 2 nics?
I have no idea what to look for after a week of reading, and testing !
Any help is greatly appreciated.
Thanks!
Your description to me if very unclear.
Can you please use actual IPs, including the relation between
z/VM as a gateway, and what exactly you mean with public IPs?
Surely your Oracle guests aren't sitting on the great unwashed
internet?
I can get ...109 to start up and I can telnet, ssh, and vnc into my guest and do wahtever, but, ...109 will start, and I cannot get into my guest via ssh telnet or vnc. infact the network does not even know the guest is up. I can not ping anything from ...109, and from ...108, I cannot ping ...109.
the idea is that both IP's should be active, and accessible in one segment. They should be able to communicate via the private IP.
I can't figure out whats wron with my setup. any help is appreciated.
Thanks
Mike
Last edited by Mike1morris; 08-21-2012 at 06:54 AM.
I edited / fixed my last post.
I had copied and pasted the first display and tried to finger poke it , since the guest setups are so similar.
So no the names are not the problem in my envionments, only in this post.
Hmmm ... do you have access to the setup on the zVM side? Total
failure of networking in my experience is usually caused by a wrong
definition on the zVM side (or a wrong default GW on the guest side).
This is the setup on the z/vm side. the linux guest names mentioned above relate to csdv1 and 2 ( acpic-s2434 = csdv1, acpic-s2435 = csdv2 ), this is just the way z/vm works...
From this configuration, csdv1 works fine, what I mean by that is that I can connect via telnet, ssh, putty, vnc ,etc. I can also ping outside the guest . CSDV2 however, I can build and access via a back door, but I cannot telnet, ssh, putty or anything into the guest. CSDV2 is also not being seen by the network, hence I cannot ping anything at all from this guest, not even the other guest in the segment, or the gateway.
Yesterday I built the third guest csdv3, and it has the same issue as csdv2.
MODIFY PORT GROUP DEVETH00 JOIN 0280.P0 0290.P1
DEFINE VSWITCH VSWITCHT ETHERNET GROUP DEVETH00 ,
RDEV 02A0.P0 02B0.P1 ,
VLAN 1067 PORTTYPE ACCESS NATIVE 1
MODIFY VSWITCH VSWITCHT MACID F30010
MODIFY VSWITCH VSWITCHT GRANT LINUX0
MODIFY VSWITCH VSWITCHT GRANT LINUX1
MODIFY VSWITCH VSWITCHT GRANT IIDV
MODIFY VSWITCH VSWITCHT GRANT IIGDV
MODIFY VSWITCH VSWITCHT GRANT CSDV1 PORTT TRUNK VLAN 477 158
MODIFY VSWITCH VSWITCHT GRANT CSDV2 PORTT TRUNK VLAN 477 158
MODIFY VSWITCH VSWITCHT GRANT CSDV3 PORTT TRUNK VLAN 477 158
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