Exadata Cloud – Post Provisioning Exadata Configuration – Part 1

Post Provisioning Exadata Configuration – Part1

After an Exadata is provisioned, ther are several post provisioning steps that need to be executed in order to allow system automation such as patching, backups, and infrastructure updates. This document will describe these steps.

All the traffic in an Exadata DB System is, by default, routed through the client network. To route backup traffic to the backup interface (BONDETH1), a static route needs to be created on each of the compute nodes in the cluster.

First identify the gateway configured for the BONDETH1 interface.

grep GATEWAY /etc/sysconfig/network-scripts/ifcfg-bondeth1 |awk -F”=” ‘{print $2}’

10.232.35.1

Review current /etc/sysconfig/network-scripts/route-bondeth1

cat /etc/sysconfig/network-scripts/route-bondeth1

10.232.35.0/24 dev bondeth1 table 211

default via 10.232.35.1 dev bondeth1 table 211

Create a new static rule for BONDETH1 and update route-bondeth1 with the following entries (per Cloud region)

Phoenix (PHX) region:

ADDRESS0=129.146.0.0

NETMASK0=255.255.0.0

GATEWAY0=10.232.35.1

 Ashburn (IAD) region):

ADDRESS0=129.213.0.0

NETMASK0=255.255.0.0

GATEWAY0=10.232.35.1

Restart the interface.

[root@dbsys ~]# ifdown bondeth1; ifup bondeth1; 


Once this change is done, you should see a new entry in the route table:

[root@~ network-scripts]# netstat -rn

Kernel IP routing table

Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface

0.0.0.0         10.232.34.1     0.0.0.0         UG        0 0          0 bondeth0

10.232.34.0     0.0.0.0         255.255.255.0   U         0 0          0 bondeth0

10.232.35.0     0.0.0.0         255.255.255.0   U         0 0          0 bondeth1

129.146.0.0     10.232.35.1     255.255.0.0     UG        0 0          0 bondeth1

169.254.200.0   0.0.0.0         255.255.255.252 U         0 0          0 eth0

192.168.132.0   0.0.0.0         255.255.252.0   U         0 0          0 clib1

192.168.132.0   0.0.0.0         255.255.252.0   U         0 0          0 clib0

192.168.136.0   0.0.0.0         255.255.248.0   U         0 0          0 stib0

192.168.136.0   0.0.0.0         255.255.248.0   U         0 0          0 stib1