What is GPnP profile?

It is small xml file located in $GRID_HOME/gpnp//profiles/peer under the name profile. xml. It is used to establish the correct global personality of a node. Each node maintains a local copy of the GPnP Profile and is maintanied by the GPnP Deamon (GPnPD) .

How do I find the ASM parameter file?

ASM spfile discovery

1. The location of the initialization parameter file specified in the Grid Plug and Play (GPnP) profile.
2. If the location has not been set in the GPnP profile, then the search order changes to: SPFILE in the Oracle ASM instance home (e.g. $ORACLE_HOME/dbs/spfile+ASM. ora)

How do I check ASM background process?

1. ASMB – ASM Background Process.
2. RBAL – ASM Rebalance Master Process.
3. ARBn – ASM Rebalance Process.
4. DBWR – Database Writer Process.
5. SMON – System Monitor Process.
6. CKPT – Checkpoint Process.
7. PSP0 – Process Spawner Process.
8. GMON – ASM Disk Group Monitor Process.

How do I recover my GPNP profile?

Repair your gpnp (Grid Plug and Play) profile, change the DiscoveryString. Start up CSSD and ASM (by starting the cluster stack) Repair your ASM_DISKSTRING. Start all of the clusterware stack.

What is Crsd in Oracle RAC?

The CRS daemon (crsd ) manages cluster resources based on the configuration information that is stored in OCR for each resource. This includes start, stop, monitor, and failover operations. The crsd process generates events when the status of a resource changes.

How do I get Spfile from ASM?

How to move spfile from ASM to filesystem

1. Create pfile from the spfile. First, we will create pfile in filesystem from the existing spfile in ASM.
2. Remove the spfile from ASM. We can now connect the the ASM instance and remove the spfile residing in ASM disk group.
3. Recreate the spfile.
4. Start the database using new spfile.

Where is Spfile in ASM?

You can check the location of the Oracle ASM SPFILE in the GPnP profile with the ASMCMD spget command. See “spget”. Restart the Oracle ASM instance so that the instance reads the SPFILE in the new location.

What are background process of ASM in Oracle?

• ASMB – ASM Background Process. Communicates with the ASM instance, managing storage and providing statistics. ASMB runs in ASM instances when the ASMCMD cp command runs or when the database instance first starts if the server parameter file is stored in ASM. ASMB also runs with Oracle Cluster Registry on ASM.

What is RMV process in Oracle?

Memory Manager Process. Serves as the instance memory manager. This process performs the resizing of memory components on the instance. Database instances, Oracle ASM instances. MMNL.

Where can I find Pfile in Oracle?

By default, PFILE is located in $ORACLE_HOME/dbs .

What is difference between Pfile and Spfile?

The SPFILE is different from the PFILE in that it can not be directly edited. This is because it has a header and footer that contain binary values. Since you can not change a SPFILE directly, Oracle allows you to manage the SPFILE via the ALTER SYSTEM command.

What is voting disk in Oracle RAC?

– Voting disk is a file in which all the nodes of a cluster register their heartbeat information. – It also contains the list of the active nodes. – Voting disks or files are like attendance registers where nodes mark their attendance (heartbeats) to confirm they are alive.

What is split brain in RAC?

Split Brain is often used to describe the scenario when two or more nodes in a cluster, lose connectivity with one another but then continue to operate independently of each other, including acquiring logical or physical resources, under the incorrect assumption that the other process(es) are no longer operational or …

What is Nodeapps in Oracle RAC?

Nodeapps are a standard set of Oracle application services that are automatically launched for RAC (Real Application Cluster). The following service are lunched by nodeapps: •Virtual IP (VIP) •Oracle Net Listener. •Global Services Daemon (GSD)

Where can I find Spfile?

The SPFILE file name is spfile SID . ora and is located in the ORACLE_HOME \database directory.

How do I check my Spfile?

Select * from v$spparameter;(to check the Spfile). Select * from v$parameter(to check the pfile). If any Path available in Value column.

What is ASM power limit?

The ASM_POWER_LIMIT initialization parameter specifies the default power for disk rebalancing in a disk group. The range of values is 0 to 1024 . The default value is 1 . A value of 0 disables rebalancing.

What is background process in dataguard?

In this post let us understand the Oracle dataguard Architecture and processes with the help of diagrams. LNS process of primary database captures redo from redo log buffer. Send it to RFS process of standby database through oracle net. RFS process then writes that redo information to standby redo log files.