We have a AIX Server with TSM installed.
This server has en0 for administration purposes and we have en1 for backup stuff.
en0 subnet 10.10.10.x
en1 subnet 10.10.20.x
The issue we are having is all of a sudden the LPARs we are backing up lose connectivity to the AIX-TSM Server. for example
en1 ip is 10.10.20.10 and a TSM LPAR client that we are backing up is 10.10.20.11
Backup fails and we found that LPAR client 10.10.20.11 won't ping 10.10.20.10, but if go to the AIX-TSM server ping works and ping from LPAR client is back.
It's like ping from the AIX-TSM box reactivates connectivity.
Something important to mention we found the problem making backups but today we were doing to test and the connectivity is gone doing nothing and pinging from AIX-TSM server to LPAR Clients reactivates it
First, do you have a VIOS or are you using HEAs in your LPAR?
Second, do you have any "energy saving" enabled in your system profiles? Believe it or not, there is such a thing and the hardware might find it worthwhile to switch off a (seemingly) adapter to conserve energy.
found something, in this pureflex I have also Intel servers with Vmware which host some Windows VMs, I configure a Windows VM in the same VLAN and the Windows VM does not lose connectivity to the AIX-TSM IP.
Something else I found doing some more testing If I change the IP to the AIX-TSM server AIX LPARs won't ping
for example
AIX-TSM Server IP 10.10.20.10 If I change it to 10.10.20.30 LPARs AIX won't ping now Windows VM pings without any problem
to get AIX LPARs ping I have to go to the AIX-TSM server and ping any ip in the 10.10.20.x segment
so far looks like AIX issue...?
should I add a static route or something? but the thing is the AIX I am testing right now only have one interface in the 10.10.20.x segment not like the production LPARs
like I said I configured an extra AIX LPAR just for testing using just one nic interface not 2 like the others LPARs being backed up.
this AIX LPAR for testing is 10.10.20.16 and this is the command you are looking for
Code:
# netstat -nr
Routing tables
Destination Gateway Flags Refs Use If Exp Groups
Route Tree for Protocol Family 2 (Internet):
10.10.20.0 10.10.20.16 UHSb 0 0 en0 - - =>
10.10.20/24 10.10.20.16 U 0 18306 en0 - -
10.10.20.16 127.0.0.1 UGHS 0 670 lo0 - -
10.10.20.255 10.10.20.16 UHSb 2 1172 en0 - -
127/8 127.0.0.1 U 6 184693 lo0 - -
Route Tree for Protocol Family 24 (Internet v6):
::1%1 ::1%1 UH 1 14560 lo0 - -
but the way VIO in my p260 and AIX-TSM Power 701 are using etherchannel.
but just to let you know I removed etherchannel in Power 701 to test more and same issue I am not able to remove the etherchannel in the p260 since is Production and I am sure network 10.10.10.x has been working fine for quite some time
Hello All,
I have a strange problem and I'm hoping someone can help. I honestly don't know where else to look.
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