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  1. #1
    Join Date
    Jan 2008
    Posts
    10

    Unanswered: Logical volumes as chunks?

    Hi Everybody!

    Do yo know if it is possible to create logical volumes and then use it as chunk? I think it is possible but I am not sure at all.

    For example, with SAM I can create a logical volume "lvol1" at "vg00" volume group. After do that, I created this logical volume, I can see two files in /dev/vg00:

    brw-r----- 1 root sys 64 0x000001 Apr 29 12:56 lvol1
    crw-r----- 1 root sys 64 0x000001 Apr 29 12:56 rlvol1

    I wonder if it is possible to use rlvol1 file, as a chunk. I mean, go to the onmonitor informix utility and then add a chunk to a dbspace, setting in the path field: /dev/vg00/rlvol1.

    I think this procedure works fine, but does anyone of us do that in your environment?

    (We have HP-UX as server, and we use informix 7.31 -I know its an older version, but... )

  2. #2
    Join Date
    Nov 2004
    Posts
    143
    Hello,

    Yes, you should be able to use the LVs provided you change the ownership to informix:informix.

    Nitin

  3. #3
    Join Date
    Jan 2008
    Posts
    10
    Thx for your reply!

  4. #4
    Join Date
    Aug 2003
    Location
    Argentina
    Posts
    780
    Hi,
    I suggest that you change to informix:informix and permission 0660 on raw-devices and not use direct the raw, create a simbolic links at this.

    Gustavo.

  5. #5
    Join Date
    Apr 2007
    Location
    Jundiai / SP - Brasil
    Posts
    311
    Do not forget to set the variable KAIOON=1 before start Informix, without this variable the Kernel I/O is not activate...
    Something like this "HPUX Version B.11.00 -> Using flag/select style KAIO" will appear in your log messages.
    ________________________________________
    César Inacio Martins
    Jundiai / SP - Brasil
    http://www.imartins.com.br/informix - em Português
    http://www.imartins.com.br/informix - English (translated by Google).
    ________________________________________

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