[Groovy]

I've been playing with VIO on my sandbox p520, and I can't seem to get the shared ethernet to work properly. I set up two VIO servers and followed the instructions from a whitepaper I got from IBM to the letter. I set up shared ethernet and shared ethernet failover exactly as it said, but I can only ping one of the VIO servers. No matter what I do, I can't get the second VIO server to respond to ping, ftp or SSH. What am I doing wrong?

[FASherman]

The good news is you didn't do anything wrong. Everything is working as designed. Once you enable shared ethernet failover, only one VIO server's network adapter will be enabled at any given time.

First, lets cover which VIOS adapter will be active. The answer is simple, the one with the higher trunking priority. If VIO1 has a priority of 1 and VIO2 has a priority of 2, then VIO1 will have the active adapter if it is available.

Here's how you can verify this.

1. Ping VIO1 - it should succeed.
2. Ping VIO2 - it should fail.

On VIO1, run the following:
chdev -dev [SEA-adapter] -attr ha_mode=standby

1. Ping VIO1 - it should fail.
2. Ping VIO2 - it should succeed.

On VIO1, run the following:
chdev -dev [SEA-adapter] -attr ha_mode=auto

1. Ping VIO1 - it should succeed.
2. Ping VIO2 - it should fail.

What you just did is force a failover by manually placing VIO1's adapter offline then tested recovering by putting it back online.

Let me know if you have any other questions.

[chanduamar]

Please go thru sg24-7940 redbook chapter 5 or 6 I think

[b00tsie]

Originally Posted by Groovy

I've been playing with VIO on my sandbox p520, and I can't seem to get the shared ethernet to work properly. I set up two VIO servers and followed the instructions from a whitepaper I got from IBM to the letter. I set up shared ethernet and shared ethernet failover exactly as it said, but I can only ping one of the VIO servers. No matter what I do, I can't get the second VIO server to respond to ping, ftp or SSH. What am I doing wrong?

Hi Groovy,

can you mail me the whitepaper which you got from IBM?
I am planning also to setup a 520 to use with VIO (and maybe 2 hacmp nodes in the near future)

[mitek]

Hi, All

I'm trying the same testcase from SG24-7940 redbook (Chapter 4, scenario 2) and have one problem

When i shutdown VIOS1 (or change ha_mode to standby) then my client lpar (LPAR1) is not pinged from internal network.

However, in situation when both VIOS (VIOS1 and VIOS2) are started then ping susccesfully performed from LPAR1 to this both VIOSes.

Priority of VIOS1 is 1 and priority of VIOS2 is 2 and ha_mode=auto and ctl_chan is setting up of available heartbeat virtual adapters with VLAN=99

What i'm doing wrong ?

P.S. Sorry for my bad english.

[mensreaj]

I noticed during failover I wasn't able to ping the client LPAR from the same host that I was pinging it from before until I cleared the arp table.