PROT-1 PROC-26 ORA-12536: TNS:-Operation would block errors During GI root.sh

Hi,

Sometimes You can get ” PROT-1 PROC-26 ORA-12536: TNS:-Operation would block errors ” During GI root.sh .

 

Details of error are as follows.

Grid Infrastructure root.sh fails on node1,

Disk Group DATA created successfully.

PROT-1: Failed to initialize ocrconfig
PROC-26: Error while accessing the physical storage
ORA-12536: TNS:-Operation would block

2020/05/04 11:34:42 CLSRSC-157: Failed to create Oracle Cluster Registry configuration
2020/05/04 11:34:42 CLSRSC-259: Oracle Clusterware Repository configuration failed

 

 

This error is related with Insufficient ulimit setting for root user.

For linux:

# ulimit -a
....
open files (-n) 256
....
max user processes (-u) 128

 

For Aix:

the maxuproc ( Maximum number of PROCESSES ) was set too low

lsattr -El sys0 | grep maxuproc
maxuproc 128 Maximum number of PROCESSES allowed per user True

 

To solve this error, increase it to 16384

lsattr -El sys0 | grep maxuproc

maxuproc 16384 Maximum number of PROCESSES allowed per user True

 

After change the ulimit to the recommended value in orachk, re-run of root.sh will be successful.

 

Do you want to learn more details about RMAN, then read the following articles.

https://ittutorial.org/rman-backup-restore-and-recovery-tutorials-for-beginners-in-the-oracle-database/

 

About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience.I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource.I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks.I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients.If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

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