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# # nslookup rh7ttc-scan Server: 192.1 Address: 192.1#53 Name: rh7ttc-scan.localdomain Address: 192.1 Name: rh7ttc-scan.localdomain Address: 192.1 Name: rh7ttc-scan.localdomain Address: 192.1 # nslookup rh7ttcn1 Server: 192.1 Address: 192.1#53 Name: rh7ttcn1.localdomain Address: 192.1 # nslookup rh7ttcn2 Server: 192.1 Address: 192.1#53 Name: rh7ttcn2.localdomain Address: 192.1 # ip route default via dev enp0s3 proto static metric 100 dev enp0s3 proto kernel scope link src metric 100 dev enp0s9 proto kernel scope link src 192.1 metric 100 dev enp0s8 proto kernel scope link src 192.1 metric 100 # cat /etc/hosts localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 # # Public 192.1 rh7ttcn1 rh7ttcn1.localdomain 192.1 rh7ttcn2 rh7ttcn2.localdomain # Private 192.1 rh7ttcn1-priv rh7ttcn1-priv.localdomain 192.1 rh7ttcn2-priv rh7ttcn2-priv.localdomain # VIP 192.1 rh7ttcn1-vip rh7ttcn1-vip.localdomain 192.1 rh7ttcn2-vip rh7ttcn2-vip.localdomain # [rhel-7-server-eus-optional-rpms] metadata_expire = 86400 sslclientcert = /etc/pki/entitlement/4386790787952850995baseurl = https://cdn.redhat.com/content/eus/rhel/server/7/$releasever/$basearch/optional/os ui_repoid_vars = releasever basearch sslverify = 1 name = Red Hat Enterprise Linux 7 Server - Extended Update Support - Optional (RPMs) sslclientkey = /etc/pki/entitlement/4386790787952850995gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release enabled = 1 sslcacert = /etc/rhsm/ca/gpgcheck = 1 # ls -rtl total 28 -rw-------. 1 root root 17108 Mar 18 oracle-database-server-12c R2-preinstall-1.0-1.el7.x86_64-rw-r--r--. rh7ttcn2: PRVG-10461 : Group "asmdba" selected for privileges "OSDBA" does not exist on node "rh7ttcn2". FAILED rh7ttcn1: PRVG-10460 : User "oracle" does not belong to group "asmadmin" selected for privileges "OSASM" on node "rh7ttcn1".

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Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /var/lib/Backup PC/.ssh/id_rsa.

Your public key has been saved in /var/lib/Backup PC/.ssh/id_

Each RAC node must: The cluster should have also 3 differents virtual IP adresses (VIP) to be used only by the SCAN listener: a single name should be resolved by 3 differents adresses.

The following table gives the SCAN network configuration used for this installation: A 2-node Oracle RAC cluster needs actually 3 machines (if you dedicate DNS server to a different virtual machine (VM)): One of the very first thing to do is to choose hostnames and network IP addresses.

UUID: 6c305e48-c048-422d-a356-030535376945 $ vboxmanage createhd --filename rh7ttcn1.rh7ttcn22--size=40960 -format=VDI --variant=fixe 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% Medium created. PASSED Verifying subnet mask consistency for subnet "" ... FAILED PRVG-1172 : The IP address "" is on multiple interfaces "enp0s3" on nodes "rh7ttcn1,rh7ttcn2" rh7ttcn1: PRVG-11067 : TCP connectivity from node "rh7ttcn1": "" to node "rh7ttcn1": "" failed.