New Features for DBA’s

Subscribe to Posts by Email


 

Subscriber Count

    696

Disclaimer

All information is offered in good faith and in the hope that it may be of use for educational purpose and for Database community purpose, but is not guaranteed to be correct, up to date or suitable for any particular purpose. db.geeksinsight.com accepts no liability in respect of this information or its use. This site is independent of and does not represent Oracle Corporation in any way. Oracle does not officially sponsor, approve, or endorse this site or its content and if notify any such I am happy to remove. Product and company names mentioned in this website may be the trademarks of their respective owners and published here for informational purpose only. This is my personal blog. The views expressed on these pages are mine and learnt from other blogs and bloggers and to enhance and support the DBA community and this web blog does not represent the thoughts, intentions, plans or strategies of my current employer nor the Oracle and its affiliates or any other companies. And this website does not offer or take profit for providing these content and this is purely non-profit and for educational purpose only. If you see any issues with Content and copy write issues, I am happy to remove if you notify me. Contact Geek DBA Team, via geeksinsights@gmail.com

Pages
«  
  »

Just watch out for processess parameter in ASM instance

If you have an asm instances with multiple databases using it, you may just need to watch out for processess parameter, yes you heard it right

See below:-
ORA-00312: online log 1 thread 1: '+ASMDISK1/testdb/redo01.log'
ORA-17503: ksfdopn:2 Failed to open file +ASMDISK1/testdb/redo01.log
ORA-15055: unable to connect to ASM instance
ORA-00020: maximum number of processes (100) exceeded
ORA-15055: unable to connect to ASM instance
ORA-00020: maximum number of processes (100) exceeded

We are having a ASM instance where it serving 8 databases apparently using all the processes that defined in the ASM instance.
Oracle Documentation says, the processes calculation for ASM instance is as follows:-
The PROCESSES initialization parameter affects Oracle ASM, but the default value is usually suitable. However, if multiple database instances are connected to an Oracle ASM instance, you can use the following formula:

PROCESSES = 50 + 50*n

where n is the number database instances connecting to the Oracle ASM instance.

Well, the bottom line is you have to consider to change this parameter as and when you are going to add a database instance in the host where ASM resides.

-Thanks
Geek DBA

May 22nd, 2013 | Tags: | Category: Automatic Storage Management

Comments are closed.