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--- database:oracle:rac:commands [2018/12/03 12:14] – [Check cluster status] odefta
+++ database:oracle:rac:commands [2023/07/04 19:36] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Oracle RAC commands ======
-===== Check cluster status =====
+===== Check one node status =====
+Execute as root:
 <code>
@@ Line 9: / Line 11: @@
 Normal output:
+<code>
 [root@lptxrac122n1 ~]# crsctl check crs
 CRS-4638: Oracle High Availability Services is online
@@ Line 14: / Line 17: @@
 CRS-4529: Cluster Synchronization Services is online
 CRS-4533: Event Manager is online
+</code>
+===== Check all nodes status =====
+Execute as root:
+<code>
+crsctl check cluster -all
+</code>
+Normal output:
+<code>
+[root@lptxrac122n1 ~]# crsctl check cluster -all
+**************************************************************
+lptxrac122n1:
+CRS-4537: Cluster Ready Services is online
+CRS-4529: Cluster Synchronization Services is online
+CRS-4533: Event Manager is online
+**************************************************************
+lptxrac122n2:
+CRS-4537: Cluster Ready Services is online
+CRS-4529: Cluster Synchronization Services is online
+CRS-4533: Event Manager is online
+**************************************************************
+</code>
+===== Verify DBCA requirements (before installing database instance) =====
+GRID_HOME: /oracle-inst \\
+ORACLE_HOME: /home/oracle/app/oracle/product/12.2.0/dbhome_1 \\
+Node1: lptxrac122n1
+Node2: lptxrac122n2
+<code>
+/oracle-inst/bin/cluvfy stage -pre dbcfg -fixup -n lptxrac122n1,lptxrac122n2 -d /home/oracle/app/oracle/product/12.2.0/dbhome_1
+</code>
+This command will generate a script (/tmp/CVU_12.2.0.1.0_oracle/runfixup.sh) that should be run (in another console) as root to fix the problems found.
+Possible output:
+<code>
+Verifying Physical Memory ...PASSED
+Verifying Available Physical Memory ...PASSED
+Verifying Swap Size ...PASSED
+Verifying Free Space: lptxrac122n2:/tmp ...PASSED
+Verifying Free Space: lptxrac122n1:/tmp ...PASSED
+Verifying User Existence: oracle ...
+  Verifying Users With Same UID: 1100 ...PASSED
+Verifying User Existence: oracle ...PASSED
+Verifying Group Existence: asmdba ...PASSED
+Verifying Group Existence: oper ...PASSED
+Verifying Group Existence: oinstall ...PASSED
+Verifying Group Membership: asmdba ...PASSED
+Verifying Group Membership: oinstall(Primary) ...PASSED
+Verifying Group Membership: oper ...PASSED
+Verifying Run Level ...PASSED
+Verifying Hard Limit: maximum open file descriptors ...FAILED (PRVG-0446)
+Verifying Soft Limit: maximum open file descriptors ...PASSED
+Verifying Hard Limit: maximum user processes ...PASSED
+Verifying Soft Limit: maximum user processes ...PASSED
+Verifying Soft Limit: maximum stack size ...PASSED
+Verifying Architecture ...PASSED
+Verifying OS Kernel Version ...PASSED
+Verifying OS Kernel Parameter: semmsl ...PASSED
+Verifying OS Kernel Parameter: semmns ...PASSED
+Verifying OS Kernel Parameter: semopm ...PASSED
+Verifying OS Kernel Parameter: semmni ...PASSED
+Verifying OS Kernel Parameter: shmmax ...PASSED
+Verifying OS Kernel Parameter: shmmni ...PASSED
+Verifying OS Kernel Parameter: shmall ...PASSED
+Verifying OS Kernel Parameter: file-max ...PASSED
+Verifying OS Kernel Parameter: ip_local_port_range ...PASSED
+Verifying OS Kernel Parameter: rmem_default ...PASSED
+Verifying OS Kernel Parameter: rmem_max ...PASSED
+Verifying OS Kernel Parameter: wmem_default ...PASSED
+Verifying OS Kernel Parameter: wmem_max ...PASSED
+Verifying OS Kernel Parameter: aio-max-nr ...PASSED
+Verifying Package: binutils-2.23.52.0.1 ...PASSED
+Verifying Package: compat-libcap1-1.10 ...PASSED
+Verifying Package: libgcc-4.8.2 (x86_64) ...PASSED
+Verifying Package: libstdc++-4.8.2 (x86_64) ...PASSED
+Verifying Package: libstdc++-devel-4.8.2 (x86_64) ...PASSED
+Verifying Package: sysstat-10.1.5 ...PASSED
+Verifying Package: ksh ...PASSED
+Verifying Package: make-3.82 ...PASSED
+Verifying Package: glibc-2.17 (x86_64) ...PASSED
+Verifying Package: glibc-devel-2.17 (x86_64) ...PASSED
+Verifying Package: libaio-0.3.109 (x86_64) ...PASSED
+Verifying Package: libaio-devel-0.3.109 (x86_64) ...PASSED
+Verifying Package: smartmontools-6.2-4 ...PASSED
+Verifying Package: net-tools-2.0-0.17 ...PASSED
+Verifying Current Group ID ...PASSED
+Verifying CRS Integrity ...
+  Verifying Clusterware Version Consistency ...PASSED
+Verifying CRS Integrity ...PASSED
+Verifying Node Application Existence ...PASSED
+Verifying Time zone consistency ...PASSED
+Verifying Single Client Access Name (SCAN) ...
+  Verifying DNS/NIS name service 'rac122-cluster-scan' ...
+    Verifying Name Service Switch Configuration File Integrity ...PASSED
+  Verifying DNS/NIS name service 'rac122-cluster-scan' ...PASSED
+Verifying Single Client Access Name (SCAN) ...WARNING (PRVG-11368)
+Verifying ASM Integrity ...
+  Verifying Node Connectivity ...
+    Verifying Hosts File ...PASSED
+    Verifying Check that maximum (MTU) size packet goes through subnet ...PASSED
+    Verifying subnet mask consistency for subnet "192.168.20.0" ...PASSED
+    Verifying subnet mask consistency for subnet "10.128.72.0" ...PASSED
+  Verifying Node Connectivity ...PASSED
+Verifying ASM Integrity ...PASSED
+Verifying Database Clusterware Version Compatibility ...PASSED
+Verifying File system mount options for path ORACLE_HOME ...PASSED
+Verifying /dev/shm mounted as temporary file system ...PASSED
+Pre-check for database configuration was unsuccessful.
+Checks did not pass for the following nodes:
+        lptxrac122n1
+Failures were encountered during execution of CVU verification request "stage -pre dbcfg".
+Verifying Hard Limit: maximum open file descriptors ...FAILED
+lptxrac122n1: PRVG-0446 : Proper hard limit for maximum open file descriptors
+              was not found on node "lptxrac122n1" [Expected >= "65536" ; Found
+              = "4096"].
+Verifying Single Client Access Name (SCAN) ...WARNING
+lptxrac122n2: PRVG-11368 : A SCAN is recommended to resolve to "3" or more IP
+              addresses, but SCAN "rac122-cluster-scan" resolves to only
+              "/10.128.79.23"
+lptxrac122n1: PRVG-11368 : A SCAN is recommended to resolve to "3" or more IP
+              addresses, but SCAN "rac122-cluster-scan" resolves to only
+              "/10.128.79.23"
+CVU operation performed:      stage -pre dbcfg
+Date:                         Dec 3, 2018 11:29:37 AM
+CVU home:                     /oracle-inst/
+User:                         oracle
+******************************************************************************************
+Following is the list of fixable prerequisites selected to fix in this session
+******************************************************************************************
+--------------                ---------------     ----------------
+Check failed.                 Failed on nodes     Reboot required?
+--------------                ---------------     ----------------
+Hard Limit: maximum open      lptxrac122n1        no
+file descriptors
+Execute "/tmp/CVU_12.2.0.1.0_oracle/runfixup.sh" as root user on nodes "lptxrac122n1" to perform the fix up operations manually
+Press ENTER key to continue after execution of "/tmp/CVU_12.2.0.1.0_oracle/runfixup.sh" has completed on nodes "lptxrac122n1"
+Fix: Hard Limit: maximum open file descriptors
+Result:
+"Hard Limit: maximum open file descriptors" was successfully fixed on all the applicable nodes
+</code>
+===== Check if instances are running in RAC =====
+Suppose global SID name is SNT:
+<code>
+srvctl status database -db SNT
+</code>
+Output should be:
+<code>
+Instance SNT1 is running on node lptxrac122n1
+Instance SNT2 is running on node lptxrac122n2
+</code>
+===== Find server pool name =====
+<code>
+srvctl status srvpool
+</code>
+Possible output:
+<code>
+Server pool name: Free
+Active servers count: 0
+Server pool name: Generic
+Active servers count: 2
+</code>
+===== Automate start / stop PDB =====
+Adding the service (for admin-managed database) with PDB name SNTL:
+<code>
+srvctl add service -db SNT -service plug -preferred SNT1 -available SNT2 -tafpolicy BASIC -policy AUTOMATIC -failovertype SELECT -failovermethod BASIC -failoverretry 5 -pdb SNTL -verbose
+</code>
+Start the service:
+<code>
+srvctl start service -db SNT -s plug
+</code>
+Check that the PDB is started:
+<code>
+sqlplus / as sysdba
+SQL*Plus: Release 12.2.0.1.0 Production on Mon Dec 3 20:11:28 2018
+Copyright (c) 1982, 2016, Oracle.  All rights reserved.
+Connected to:
+Oracle Database 12c Standard Edition Release 12.2.0.1.0 - 64bit Production
+SQL> COLUMN NAME FORMAT A15
+SQL> COLUMN RESTRICTED FORMAT A10
+SQL> COLUMN OPEN_TIME FORMAT A30
+SQL> SELECT NAME, OPEN_MODE, RESTRICTED, OPEN_TIME FROM V$PDBS;
+NAME            OPEN_MODE  RESTRICTED OPEN_TIME
+--------------- ---------- ---------- ------------------------------
+PDB$SEED        READ ONLY  NO         03-DEC-18 07.16.38.734 PM +01:
+SNTL            READ WRITE NO         03-DEC-18 07.18.06.241 PM +01:
+SQL> exit
+</code>
+Full custom URL to connect from java:
+<code>
+jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(LOAD_BALANCE=OFF)(FAILOVER=ON)(ADDRESS=(PROTOCOL=TCP)(HOST=lptxrac122n1.lab.ptx.axway.int)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=lptxrac122n2.lab.ptx.axway.int)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=SNTL)(SERVER=DEDICATED)))
+</code>