Checando informações de Rede e IPs do Oracle RAC

Checando informações de Rede e IPs do Oracle RAC

1. Exibir a configuração atual do scan.

$ srvctl config scan
SCAN name: exadata-pscan1, Network: 1
Subnet IPv4: 192.168.16.0/255.255.255.0/bondeth0, static
Subnet IPv6:
SCAN 0 IPv4 VIP: 192.168.16.43
SCAN VIP is enabled.
SCAN VIP is individually enabled on nodes:
SCAN VIP is individually disabled on nodes:
SCAN 1 IPv4 VIP: 192.168.16.41
SCAN VIP is enabled.
SCAN VIP is individually enabled on nodes:
SCAN VIP is individually disabled on nodes:
SCAN 2 IPv4 VIP: 192.168.16.42
SCAN VIP is enabled.
SCAN VIP is individually enabled on nodes:
SCAN VIP is individually disabled on nodes:

2. Obter informações sobre registros de DNS do SCAN.

$ nslookup exadata-pscan1
Server: 192.168.16.20
Address: 192.168.16.20#53

Name: exadata-pscan1
Address: 192.168.16.41
Name: exadata-pscan1
Address: 192.168.16.42
Name: exadata-pscan1
Address: 192.168.16.43

Onde: 192.168.16.41, 192.168.16.42 e 192.168.16.43 são os IPs do SCAN

3. Nome do Cluster.

$./olsnodes -c
exadata-pclu1

4) Exibir o nome do Node Público e Privado

$ cd /u01/app/12.1.0.2/grid/bin/
$ ./olsnodes -n -i
exadatadm01vm011exadata01vm01-vip
exadatadm02vm012exadata02vm01-vip

$./srvctl config nodeapps -a
Network 1 exists
Subnet IPv4: 192.168.16.0/255.255.255.0/bondeth0, static
Subnet IPv6:
Ping Targets:
Network is enabled
Network is individually enabled on nodes:
Network is individually disabled on nodes:
VIP exists: network number 1, hosting node exadatadm01vm01
VIP Name: exadata01vm01-vip
VIP IPv4 Address: 192.168.16.46
VIP IPv6 Address:
VIP is enabled.
VIP is individually enabled on nodes:
VIP is individually disabled on nodes:
VIP exists: network number 1, hosting node exadatadm02vm01
VIP Name: exadata02vm01-vip
VIP IPv4 Address: 192.168.16.47
VIP IPv6 Address:
VIP is enabled.
VIP is individually enabled on nodes:
VIP is individually disabled on nodes:

5) Exibe informações do IP privado.

$./olsnodes -n -i -l -p
exadatadm01vm011172.16.2.63exadata01vm01-vip

As informações de rede pública e privada são armazenadas no Oracle Cluster Registry (OCR).

$./oifcfg getif
bondeth0 192.168.16.0 global public
ib0 172.16.0.0 global cluster_interconnect

“cluster_interconnect” — Interface Privada no Oracle Clusterware

O comando iflist consulta o sistema operacional para descobrir quais interfaces de rede estão presentes no node.
O comando iflist mostra as interfaces disponíveis que você pode configurar com o “setif”.

-p exibe o tipo de interface que pode ser PRIVATE, PUBLIC ou UNKNOWN
-n inclui a máscara de sub-rede

$ ./oifcfg iflist -p -n
eth0 192.168.1.0 PRIVATE 255.255.255.0
bondeth0 192.168.16.0 PRIVATE 255.255.255.0
bondeth1 10.70.156.0 PRIVATE 255.255.255.0
ib0 172.16.0.0 PRIVATE 255.255.252.0
ib0 169.254.0.0 UNKNOWN 255.255.0.0
ib1 172.16.0.0 PRIVATE 255.255.252.0

6) Configuração da interface de Rede

$ ifconfig |grep 192.168*
Ifconfig uses the ioctl access method to get the full address information, which limits hardware addresses to 8 bytes.
Because Infiniband address has 20 bytes, only the first 8 bytes are displayed correctly.
Ifconfig is obsolete! For replacement check ip.
Ifconfig uses the ioctl access method to get the full address information, which limits hardware addresses to 8 bytes.
Because Infiniband address has 20 bytes, only the first 8 bytes are displayed correctly.
Ifconfig is obsolete! For replacement check ip.
Ifconfig uses the ioctl access method to get the full address information, which limits hardware addresses to 8 bytes.
Because Infiniband address has 20 bytes, only the first 8 bytes are displayed correctly.
Ifconfig is obsolete! For replacement check ip.
inet addr:192.168.16.44 Bcast:192.168.16.255 Mask:255.255.255.0
inet addr:192.168.16.46 Bcast:192.168.16.255 Mask:255.255.255.0
inet addr:192.168.16.41 Bcast:192.168.16.255 Mask:255.255.255.0
inet addr:192.168.16.42 Bcast:192.168.16.255 Mask:255.255.255.0
inet addr:192.168.1.82 Bcast:192.168.1.255 Mask:255.255.255.0

Onde:

192.168.16.44 — IP de dados
192.168.16.46 — IP do VIP
192.168.16.41 — IP do SCAN
192.168.16.42 — IP do SCAN
192.168.1.82 — IP de Gerência

Referência

Clusterware Administration and Deployment Guide. Avalilable at: https://docs.oracle.com/cd/B28359_01/rac.111/b28255/oifcfg.htm