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O/S partitioning scheme for Oracle 10g on RHEL Linux AS3 ( post #1) Hello, We'll soon be installing RHEL Linux AS3 on a server that will function as an Oracle ...
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  1. #1
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    O/S partition planning for Oracle 10G on Red Hat AS3


    O/S partitioning scheme for Oracle 10g on RHEL Linux AS3 ( post #1)

    Hello,

    We'll soon be installing RHEL Linux AS3 on a server that will function
    as an Oracle 10G backend database server. This server may, in the future, have the Oracle app. server moved onto it, as well, but it will not have any other function and it will not house user accounts. The server has four Xeon 2.8 GHz cpu's and 4GB of RAM. There are two sets of 36GB drives that are set up as hardware RAID 1 sets--one set for the operating system and one set for the transaction logs. Additionally, there are eight 73 GB hard drives that will be used in the migration and testing of the existing Oracle database (some of these drives can be used to augment the LVM partitions of the O/S and for any additional space Oracle may require), which currently resides on a Windows server. I have read two helpful articles regarding installing Oracle 10G on RHEL AS3 (One on the Oracle website, by John Smiley (which did not cover partitioning at all) and one article available after logging in to the Red Hat site and which partially covered partitioning, but I'm wondering if anyone has anything to add on that issue). I was thinking of creating the O/S on a 36GB hardware (via PERC 3/DC) RAID 1 drive set. I was planning on creating /, swap, and /boot as static partitions and /var, /u01, /tmp, and /home as LVM partitions on this same RAID 1 drive set. Further, since the server has 4GB of RAM, I was planning on creating four 2GB swap partitions--one on the O/S RAID 1 drive set, and three on one or more of the 73GB drives, described above. Does this sound like a reasonable layout. Also, how big should I make / ? Should I include any additional partitions or do this some entirely different way? BTW, the production database this server will be running will live on a small SAN.

    Thanks to anyone experienced in this area, out there...

  2. #2
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    Hi,

    If this is a dedicated Oracle server and thats the only thing it will do you will be alright with a 3GB / fs. (you said you will have a separate /tmp /var /opt right?)

    But keeping it to small only makes for trouble later on...

    Another suggestion is not to create a lot of filesystems... i.e. create /boot / and swap on your internal 36GB disk... ( I know it isn't what is recommended but the "old" oracle OFA is obsolete, now SAME rules...)
    SAME = Stripe And Mirror Everything...

    I know you will have a lot of people saying that you need separate fs in order to not fill the / fs to 100%, but that is not an issue! Only root can fill up the fs to 100% and oracle (and everything else) is run as a user...

    A great installation-howto (that works) is www.puschitz.com. Don't use the Oracle ones for installing on RHEL3!!!

    I have done a couple of 9i/9iRAC installs, 10g/10gRAC following Puschitz guides and they work like a charm.

    Cheers

    Jonas
    --
    in Linux Computing we Trust

  3. #3
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    Thanks for the reply/information. I'll check out Werner's page.

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