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4 Replies Latest reply: Dec 3, 2012 6:45 AM by 974842 RSS

ASM Spfile

user13375747 Newbie
Currently Being Moderated
Hello everybody,

I have a couple of questions regarding ASM SPFILE.

1)How ASM instance can read the SPFILE from ASM disks, id they are not mounted?

2) How ASM knows where to get SPFILE if there is no init.ora file in $ORACLE_HOME/dbs with SPFILE=[path to spfile]
parameter?

Thanks in advance
  • 1. Re: ASM Spfile
    Shivananda Rao Guru
    Currently Being Moderated
    Hello,

    May be this might help you http://blog.trivadis.com/b/robertbialek/archive/2012/07/04/oracle-asm-spfile-stored-in-an-asm-disk-group-how-it-works.aspx

    user13375747      
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    Please consider closing your questions by providing appropriate points if you feel that they have been answered rather than keeping it open. Please keep the forum clean !!
  • 2. Re: ASM Spfile
    onedbguru Pro
    Currently Being Moderated
    user13375747 wrote:
    Hello everybody,

    I have a couple of questions regarding ASM SPFILE.

    1)How ASM instance can read the SPFILE from ASM disks, id they are not mounted?

    2) How ASM knows where to get SPFILE if there is no init.ora file in $ORACLE_HOME/dbs with SPFILE=[path to spfile]
    parameter?

    Thanks in advance
    it's MAGIC.

    The olr.loc file tells ASM where to locate the spfile and on which physical disk it is located. The header-section of the physical devices CAN contain things like OCR, VOTING and SPFILE.
  • 3. Re: ASM Spfile
    nnarimanov Newbie
    Currently Being Moderated
    Hi,
    This point is excellently explained in http://aychin.wordpress.com/2011/01/22/oracle-11gr2-asm-spfile-eng/
  • 4. Re: ASM Spfile
    974842 Newbie
    Currently Being Moderated
    U can check ur Spfile in DIsks Groups only manually

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