10g not recognizing my disks
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Thread: 10g not recognizing my disks

  1. #1
    Join Date
    Mar 2002
    Location
    Mesa, Arizona
    Posts
    1,204

    10g not recognizing my disks

    I'm having a problem adding Disk Members in Automated Storage Management Configuration

    No disks are being "discovered" under /dev/raw/*

    The drives are /dev/sda through /dev/sdf (6 - 35gb scsi drives, /dev/sda is mounted as /u1 for $ORACLE_HOME, trace files, etc.)

    How do I configure the OS so Oracle will see these drives?
    "I do not fear computers. I fear the lack of them." Isaac Asimov
    Oracle Scirpts DBA's need

  2. #2
    Join Date
    May 2002
    Posts
    2,645
    I haven't finished installing 10g yet, but from what I know about UNIX, I'm not sure why ASSM would be looking for device address drivers found in /dev. The /dev directories are used by the OS to map logical to physical (you have directories like /dev/dsk and /dev/rdsk - those come into play when installing the OS and formatting). I would think that Oracle would be looking for mount points - the human readable names - for file systems, such as /opt, /opt1, /u01, whatever - but definitely NOT something in the /dev/whatever realm.

    You may have the disks on your file system, but how do you reference them by partition name (e.g., df -k)? For Oracle going to the logical/character DAD names in /dev would be something new.

  3. #3
    Join Date
    Sep 2002
    Location
    England
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    7,331
    AFAIK, ASSM cant deal with 'cooked' file systems - it has to deal with raw disks so it can create its own kinda virtual file systems on there itself

    We were trialing this for the BETA program - couldnt get it work properly

  4. #4
    Join Date
    Mar 2002
    Location
    Mesa, Arizona
    Posts
    1,204
    I see the disks now. The sysadmin had to map /dev/sda to /dev/raw1, etc. first. Strange.
    I'm running root.sh now and it's complaining about CSS and CRS (something to do with clustering). It's saying that ASM cannot be used until Oracle CSS service is started. I logged a TAR and I'll update this if I actually get it running.
    -Ken
    "I do not fear computers. I fear the lack of them." Isaac Asimov
    Oracle Scirpts DBA's need

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