Oracle RAC - Cluster status checks
Oracle RAC Solution · Config document · referenced from Grid Infrastructure installation
The five crsctl checks run after both root.sh scripts had succeeded, with their output. They show the cluster as it stood before any database software was installed.
| Item | Value |
|---|---|
| Tool | /data/u01/app/grid11204/bin/crsctl |
| Run on | oradb01 |
| Run as | root |
| Software | Grid Infrastructure 11.2.0.4 |
The commands
Run as root on oradb01.
$ /data/u01/app/grid11204/bin/crsctl check cluster -all $ /data/u01/app/grid11204/bin/crsctl status resource -t $ /data/u01/app/grid11204/bin/crsctl check ctss $ /data/u01/app/grid11204/bin/crsctl check css $ /data/u01/app/grid11204/bin/crsctl check evm
The output
The output of the five commands in the same order, separated by an empty line.
output 67 lines
**************************************************************
oradb01:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
oradb02:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.LISTENER.lsnr
ONLINE ONLINE oradb01
ONLINE ONLINE oradb02
ora.OCR.dg
ONLINE ONLINE oradb01
ONLINE ONLINE oradb02
ora.asm
ONLINE ONLINE oradb01 Started
ONLINE ONLINE oradb02 Started
ora.gsd
OFFLINE OFFLINE oradb01
OFFLINE OFFLINE oradb02
ora.net1.network
ONLINE ONLINE oradb01
ONLINE ONLINE oradb02
ora.ons
ONLINE ONLINE oradb01
ONLINE ONLINE oradb02
ora.registry.acfs
ONLINE ONLINE oradb01
ONLINE ONLINE oradb02
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE oradb02
ora.LISTENER_SCAN2.lsnr
1 ONLINE ONLINE oradb01
ora.LISTENER_SCAN3.lsnr
1 ONLINE ONLINE oradb01
ora.cvu
1 ONLINE ONLINE oradb01
ora.oc4j
1 ONLINE ONLINE oradb01
ora.oradb01.vip
1 ONLINE ONLINE oradb01
ora.oradb02.vip
1 ONLINE ONLINE oradb02
ora.scan1.vip
1 ONLINE ONLINE oradb02
ora.scan2.vip
1 ONLINE ONLINE oradb01
ora.scan3.vip
1 ONLINE ONLINE oradb01
CRS-4700: The Cluster Time Synchronization Service is in Observer mode.
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online| Command | What it shows |
|---|---|
crsctl check cluster -all | Cluster Ready Services, Cluster Synchronization Services and the Event Manager are online on both nodes |
crsctl status resource -t | Every resource Clusterware manages, with target and state. Local resources run once per node, cluster resources once in the cluster |
crsctl check ctss | The Cluster Time Synchronization Service is in observer mode: it found NTP configured on the nodes and leaves the clocks to it |
crsctl check css | Cluster Synchronization Services of the local node |
crsctl check evm | Event Manager of the local node |
The resources in the second output:
| Resource | What it is |
|---|---|
ora.LISTENER.lsnr | The node listener, one per node |
ora.OCR.dg | The disk group OCR |
ora.asm | The ASM instance |
ora.gsd | Global Services Daemon, needed only by Oracle 9i RAC databases; target and state are OFFLINE on purpose |
ora.net1.network | The public network |
ora.ons | Oracle Notification Service |
ora.registry.acfs | Registry of ACFS file systems |
ora.LISTENER_SCAN1.lsnr to ora.LISTENER_SCAN3.lsnr | The three SCAN listeners |
ora.scan1.vip to ora.scan3.vip | The three SCAN addresses |
ora.oradb01.vip, ora.oradb02.vip | The node VIPs |
ora.cvu | Cluster Verification Utility, periodic checks |
ora.oc4j | A Java container used by Clusterware's management features |
No database, no database listener on port 1525 and no further disk group is in the list yet; they are added in the later parts.
Checked against Oracle Grid Infrastructure 26ai
| As built | Today |
|---|---|
crsctl check cluster -all, crsctl status resource -t | The CRSCTL reference is still part of the Clusterware guide |
crsctl check ctss, observer mode | CTSS is deprecated in 19c and desupported in 26ai; the clocks are checked with cluvfy comp clocksync -n all |
ora.gsd offline | Expected in 11.2: GSD is "typically offline" and only enabled for Oracle 9i RAC databases. It does not appear in the 19c and 26ai guides |
ora.oc4j | The oc4j noun is deprecated; Quality of Service Management, which it served, is desupported in 26ai |
ora.registry.acfs | Does not occur in the 26ai guides |
| Offline resources | "Resources listed as TARGET:OFFLINE and STATE:OFFLINE do not need to be monitored." |
Later releases added a management database (the Grid Infrastructure Management Repository) to this list; it is optional for standalone clusters in 19c, deprecated in 21c and desupported in 26ai.