Switching from single NIC to NIC bonding in "active" RAC
Hi
I have a 4 node RAC cluster on RHEL 4, running 10.2.0.3.0 in "semi-production".
"Everything" is multiplexed, except the NICs. The servers have 2 NIC ports one for public and one for interconnect.
If we add another NIC with 2 ports, is it possible to change the NIC configuration from single port to NIC bonding, without reinstalling CRS?
I can get a maintenance window, so this doesn't have to be done on the fly, I just need to know if its do-able.
I have checked some notes on MetaLink and for me it looks like this should be possible.
E.g. Note:436555.1 and Note:283684.1
Regards
Niklas
Nicke, Its very well doable and supported approach. You can use oifcfg to reconfigure the interfaces and there is no need to reinstall the CRS.
-Harish Kalra
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Van: M Angus
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Aan: Pick Axe Photoworks
Re: How to change from Photoshop CC to Photoshop Photography Program?
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My Bonded interface
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[root@Gateway network-scripts]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.5.0 (November 4, 2008)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth2
MII Status: up
MII Polling Interval (ms): 1000
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth2
MII Status: up
Link Failure Count: 0
Permanent HW addr: 08:00:27:1e:57:cf
Slave Interface: eth4
MII Status: up
Link Failure Count: 0
Permanent HW addr: 08:00:27:46:69:69
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Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth4
MII Status: up
MII Polling Interval (ms): 1000
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth2
MII Status: up
Link Failure Count: 0
Permanent HW addr: 08:00:27:1e:57:cf
Slave Interface: eth4
MII Status: up
Link Failure Count: 0
Permanent HW addr: 08:00:27:46:69:69
am afraid there's not much help in the message log to debug this.
Any views what's wrong and how to resolve? appreciate ur replies. Thanks
Regards AmitHi,
I'm having the same problem, when i disconnect the cable from the eth0 (active slave) stop receiving respond
I have tried bridged conf and interal net.
I'm using VirtualBox 4.1.16
This is my conf:
[root@integrador ~]# cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=10.10.0.2
NETWORK=10.10.0.0
NETMASK=255.255.255.0
BONDING_OPTS="mode=1 miimon=100"
BOOTPROTO=none
ONBOOT=yes
[root@integrador ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=none
MASTER=bond0
SLAVE=yes
USERCTL=no
[root@integrador ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
ONBOOT=yes
BOOTPROTO=none
MASTER=bond0
SLAVE=yes
USERCTL=no
[root@integrador ~]# cat /etc/modprobe.d/bonding.conf
alias bond0 bonding
[root@integrador ~]# ifconfig -a
bond0 Link encap:Ethernet HWaddr 08:00:27:5C:C5:BA
inet addr:10.10.0.2 Bcast:10.10.0.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe5c:c5ba/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:402 errors:0 dropped:0 overruns:0 frame:0
TX packets:92 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:39487 (38.5 KiB) TX bytes:11045 (10.7 KiB)
eth0 Link encap:Ethernet HWaddr 08:00:27:5C:C5:BA
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:211 errors:0 dropped:0 overruns:0 frame:0
TX packets:89 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:23061 (22.5 KiB) TX bytes:10863 (10.6 KiB)
eth1 Link encap:Ethernet HWaddr 08:00:27:5C:C5:BA
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:191 errors:0 dropped:0 overruns:0 frame:0
TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:16426 (16.0 KiB) TX bytes:182 (182.0 b)
eth2 Link encap:Ethernet HWaddr 08:00:27:DF:11:A2
inet addr:192.168.57.1 Bcast:192.168.57.3 Mask:255.255.255.252
inet6 addr: fe80::a00:27ff:fedf:11a2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:1142 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:119508 (116.7 KiB)
eth3 Link encap:Ethernet HWaddr 08:00:27:D1:41:9A
inet addr:192.168.1.50 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fed1:419a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:825 errors:0 dropped:0 overruns:0 frame:0
TX packets:625 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:563221 (550.0 KiB) TX bytes:85914 (83.9 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:25 errors:0 dropped:0 overruns:0 frame:0
TX packets:25 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2690 (2.6 KiB) TX bytes:2690 (2.6 KiB)
[root@integrador ~]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth0
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 08:00:27:5c:c5:ba
Slave queue ID: 0
Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 08:00:27:fc:6b:f6
Slave queue ID: 0
[root@integrador ~]# lsmod | grep -i bond
bonding 109558 0
ipv6 264641 39 cnic,bonding,ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6
[root@integrador ~]# uname -a
Linux integrador 2.6.32-220.el6.i686 #1 SMP Tue Dec 6 16:15:40 GMT 2011 i686 i686 i386 GNU/Linux
Sorry for my english! -
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Hi Team,
I know, this topic has been answered for the "old" 11x Appliances: not possible.
Does the new UCS hardware change anything ?
Can we bundle 2 NICs somehow to get interface redundancy ?
If still not possible to configure that in ACS 5 itself:
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NIC Bonding
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Creating interface bonding
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Hi everybody,
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I want to set NIC bonding on my VM 2.2 server. How does NIC bonding work? Also would I have to do any setup on my switch? Thank you to anyone who can help me understand.There is a great document on the Oracle Wiki for this: [ Oracle VM Server Configuration- bonded and trunked network interfaces|http://wiki.oracle.com/page/Oracle+VM+Server+Configuration-+bonded+and+trunked+network+interfaces]. -
GUIDE: Oracle VM VirtualBox and Oracle Linux NIC bonding
Author: Dude
Date: 01-Jun-2013
Version: B
Last updates:
23-Jul-2013, changes required due to forum upgrade
The following is provided in the hope that it might be useful. If you wish to use it for the purpose of reference, presentation or education, please include the link or information to this forum posting. Thank you!
What is Linux network interface bonding? Simply put, the Linux system provides a kernel driver, which can create a logical network device (bond) using 2 or more Network Interface Controllers (NIC) to accomplish link-aggregation and adapter fault-tolerance. For more information, please see the Deployment Guide at https://linux.oracle.com/documentation/
The channel bonding interface supports several modes of operation. In a typical active-backup set up for fault-tolerance, the system performs MII-based health monitoring of the network interface slaves (eth0, eth1) and assigns them according to bond options and interface availability. In active-backup mode (mode 1), only the current active network device is seen externally.
Linux bonding for fault-tolerance under Oracle VM VirtualBox does not seem to function as advertised. Searching the Internet for more information shows that other people have tried to set up Linux bonding using various virtualization products, virtual host network adapter and bonding options, but without success.
It appears the management of Media Access Control addresses (MAC) interferes with internal routing methods between the host and the virtual machine guest. Using the modinfo bonding command (fig. 1) shows a listing of available parameters for the bonding kernel module. The fail_over_mac parameter addresses the Mac address issue in VirtualBox.
Fig.1
# modinfo bonding
filename: /lib/modules/2.6.39-400.17.1.el6uek.x86_64
/kernel/drivers/net/bonding/bonding.ko
parm: fail_over_mac:For active-backup,
do not set all slaves to the same MAC;
0 for none (default), 1 for active, 2 for follow (charp)
Configuration Example
Virtualization Product: Oracle VM VirtualBox 4.2.10
VM Guest OS: Oracle Linux 6.4 (x64)
VM adapter settings: Bridged Adapter, Paravirtualized Network (virtio-net)
Adapter1 (eth0): 080027436617, en0, Ethernet 1
Adapter2 (eth1): 08002708F36A, en0, Ethernet 1
Note: If you wish to reset the network adapter names and MAC addresses used by the Oracle Linux guest system, erase the content of /etc/udev/rules.d/70-persistent-net.rules and restart the virtual machine.
1. Create or modify the following configuration files:
/etc/modprobe.d/bonding-eth0_eth1.conf
alias bond0 bonding
/etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=10.0.2.12
NETMASK=255.0.0.0
GATEWAY=10.0.0.138
DNS1=10.0.0.138
DNS2=8.8.8.8
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
BONDING_OPTS="mode=1 miimon=100 fail_over_mac=1"
/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes
USERCTL=no
/etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes
USERCTL=no
2. Restart the system or network services (root):
Fig. 2
# service network restart
Configuration Test
Enter the following commands as user root to verify proper operation of NIC bonding:
Fig. 3
# tail /var/log/messages
bond0: setting mode to active-backup (1).
bond0: Setting MII monitoring interval to 100.
bond0: Setting fail_over_mac to active (1).
bond0: Adding slave eth0.
bond0: making interface eth0 the new active one.
bond0: first active interface up!
bond0: enslaving eth0 as an active interface with an up link.
bond0: Adding slave eth1.
bond0: enslaving eth1 as a backup interface with an up link.
Fig. 4
# ifconfig
bond0 Link encap:Ethernet HWaddr 08:00:27:43:66:17
inet addr:10.0.2.12 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::a00:27ff:fe43:6617/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
eth0 Link encap:Ethernet HWaddr 08:00:27:43:66:17
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
eth1 Link encap:Ethernet HWaddr 08:00:27:08:F3:6A
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
Fig. 5
# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 10.0.0.138 0.0.0.0 UG 0 0 0 bond0
10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 bond0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 bond0
Fig. 6
# ifconfig eth0 down
# tail /var/log/messages
bond0: link status definitely down for interface eth0, disabling it
bond0: making interface eth1 the new active one.
# ifconfig
bond0 Link encap:Ethernet HWaddr 08:00:27:08:F3:6A
inet addr:10.0.2.12 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::a00:27ff:fe43:6617/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
eth1 Link encap:Ethernet HWaddr 08:00:27:08:F3:6A
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
Fig. 7
# ifconfig eth0 up
# ifconfig eth1 down
# tail /var/log/messages
bond0: link status definitely up for interface eth0, 4294967295 Mbps full duplex.
bond0: link status definitely down for interface eth1, disabling it
bond0: making interface eth0 the new active one.
# ifconfig
bond0 Link encap:Ethernet HWaddr 08:00:27:43:66:17
inet addr:10.0.2.12 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::a00:27ff:fe43:6617/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
eth0 Link encap:Ethernet HWaddr 08:00:27:43:66:17
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
During the above test, the client network connection from host 10.0.0.1 (ssh) was maintained without any noticeable interruption. As it can be seen from the syslog and ifconfig command output, the bond0 interface was automatically assigned either the MAC address of eth0 or eth1 and the fail-over worked as advertised.
Good luck!Please see these docs/links.
Using Oracle VM with Oracle E-Business Suite Release 11i or Release 12 [ID 465915.1]
Certified Software on Oracle VM [ID 464754.1]
Oracle VM Templates -- Oracle E-Business Suite 12.1.3 (32-bit), Oracle E-Business Suite 12.1.1 (64-bit and 32-bit) and Oracle E-Business Suite Release 12.X Sparse Middle Tier (32-bit)
http://www.oracle.com/technetwork/server-storage/vm/ebs-093153.html
E-Business Suite 12.1.3 Templates for Oracle VM Now Available
http://blogs.oracle.com/stevenChan/2010/11/ebs1213_oraclevm.html
Live Migration of EBS Services Using Oracle VM
http://blogs.oracle.com/stevenChan/2010/01/ebs_live_migration_ovm.html
Using Oracle VM with Oracle E-Business Suite Virtualization Kit
http://blogs.oracle.com/stevenChan/2009/12/oracle_vm_ebs_virtualization_kit.html
New Oracle® VM Templates for Oracle Applications Now Available
http://www.oracle.com/us/corporate/press/068341
Very Cool! New Oracle VM Templates for Oracle E-Business Suite
http://blogs.oracle.com/virtualization/2010/11/very_cool_new_oracle_vm_templa.html
Thanks,
Hussein
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