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Überprüfen von Oracle RAC-Netzwerk- und IP-Informationen

1. Anzeige der aktuellen Scankonfiguration

$ 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. Informieren Sie sich über SCAN-DNS-Einträge.

$ 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

Wobei:192.168.16.41, 192.168.16.42 und 192.168.16.43 die SCAN-IPs sind

3. Clusternamen anzeigen

$./olsnodes -c
exadata-pclu1

4) Anzeige des PUBLIC- und VIP-Knotennamens.

$ 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) Private IP-Informationen anzeigen

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

Informationen zu öffentlichen und privaten Netzwerken werden in Oracle Cluster Registry (OCR) gespeichert.

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

„cluster_interconnect“ – Private Schnittstelle in Oracle Clusterware

Der Befehl iflist fragt das Betriebssystem ab, welche Netzwerkschnittstellen auf diesem Knoten vorhanden sind.
Der Befehl iflist zeigt die verfügbaren Schnittstellen, die Sie mit „setif“ konfigurieren können.

-p Parameter zeigt den Typ der Schnittstelle an, die PRIVAT, ÖFFENTLICH oder UNBEKANNT sein kann
-n schließt die Subnetzmaske ein

$ ./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) Konfiguration der Netzwerkschnittstelle

$ 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

Wo:

192.168.16.44 – Daten-IP-Adresse
192.168.16.46 – Virtuelle IP-Adresse (VIP)
192.168.16.41 – SCAN-IP-Adresse
192.168.16.42 – SCAN-IP-Adresse
192.168.1.82 – Verwaltungs-IP-Adresse

Referenzen

Handbuch zur Clusterware-Verwaltung und -Bereitstellung. Verfügbar unter:https://docs.oracle.com/cd/B28359_01/rac.111/b28255/oifcfg.htm