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June 9th, 2015 05:00

AIX 6.1 to 7.1 upgrade causes ALL networker backups to fail.

Hoping someone has run into this before. EMC support has not been able to solve this at all.

Our Networker server is version 8.1.1.2 and the OS is currently on AIX 6.1. We have tried 3 different times now to upgrade the OS to AIX 7.1. Each time we've done the OS upgrade, all of our backups fail. We see errors with IPV6, although that is turned off/disabled in our OS, and we see and endless stream of "connection refused" errors from the existing clients when trying to run backups.

Our backups run to data domain 890s. Our networker server mounts the boost devices and all data domain connections seem to be fine.

Our theory is that networker may have changed a host ID or something similar. Or that our existing clients are expecting to see something from the networker server that is no longer present.

What credentials are the networker clients expecting to see that our networker server may no longer be sending to the clients?

If anyone out there has run into anything similar, your input would be greatly appreciated!!

116 Posts

June 10th, 2015 00:00

Hello,

We had some issues with AIX when we tried to remove ipv6 config.

I think you should try the followings:

1. put the following line to /etc/hosts (if it's not there):

::1                     loopback localhost      # IPv6 loopback (lo0) name/address

2. do not completly disable ipv6, lo0 needs the ipv6 addr. too:

lo0: flags=e08084b,c0

        inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255

       inet6 ::1%1/0

         tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1

Please share the output of the save command from an aix client:

(eg.: save -vv -s .. -c .. -b .. -y 1day -w 1day /etc/hosts)

Regards,

Istvan

14.3K Posts

June 10th, 2015 05:00

Agree... we have AIX 7.1 backup server and only thing there to add was

::1             localhost                       loopback

66 Posts

June 11th, 2015 06:00

It needs the loopback address for IPV6 and IPV4 as noted above.

Also AIX7 likes to try and build the routing table for you on upgrade, check to make sure you actually have the correct default route in smitty for your gateway. After I reboot an AIX 7.1 Networker server I sometimes have to flush the routing table and manually re-add the default routes for the connected networks.

This is AIX on Power 740 using VIOS

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