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Answered Dedicated mode

Discussion in 'Redacted T6 Questions' started by whatwhat, Jan 11, 2018.

  1. whatwhat

    whatwhat Member

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    That mode doesn't seem to do anything, can someone tell me how it works?
     
  2. mikefawkes

    mikefawkes Active Member

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    In dedicated mode, OMEGAMON® for MVS™ can report hardware and software problems so severe that they disable other mechanisms, including z/OS® system consoles. Dedicated mode offers the highest OMEGAMON availability. In this mode, OMEGAMON does not rely on VTAM®. Instead, OMEGAMON communicates using the execute channel program (EXCP).

    In dedicated mode, OMEGAMON refreshes the screen automatically every few seconds without operator intervention. The default refresh cycle is five seconds; however, you can change this interval to suit your needs.


    Best practice: run page-fixed
    In dedicated mode, OMEGAMON should be run page-fixed and nonswappable to provide higher availability for exception analysis. If OMEGAMON is page-fixed, it is protected from paging and swapping problems. If OMEGAMON is not page-fixed, one of the following conditions may be in effect:
    • Swapped every cycle on a long wait, which increases swapping, and device and channel activity
    • Vulnerable to problems with the ASM, page or swap data sets, devices, control units, and channels
    • Vulnerable to unilateral or exchange swaps by the SRM
    Issue the OMEGAMON IOPT command to display and customize page-fixing options. IOPT provides options for setting OMEGAMON storage page-fixed in memory, marking OMEGAMON non-swappable, and issuing DASD reserves when members are saved in RKOMPCSV. If you make changes to IOPT, be sure to save your profile using the PPRF or IPRF command. Then recycle the OMEGAMON task.
     
  3. mikefawkes

    mikefawkes Active Member

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    dedicated mode.

    To configure OMEGAMON to run in non-VTAM dedicated mode, complete the following steps, then start OMEGAMON as described in Please login or register to view links or downloads!:
    1. Edit rhilev.rte.RKANSAMU(KOMPROC) and modify the parameters to suit your site. explains the parameters and shows their defaults.
    2. Save KOMPROC in your PROCLIB.
    3. SMS-managed DASD users only: if SMS class is assigned to system-generated data set names, you must exclude jobname OMEGAMON system-generated data sets from SMS control.
    Table 1. Dedicated mode parameters
    Parameter Value Description Default
    COLS nnn Number of columns on OMEGAMON for MVS™ terminal. 80
    FOLD Y or N Specifies whether or not to fold the password to upper case. Y
    FSCR ccccccc First screen space that appears when you log on to OMEGAMON for MVS. OMINITZZ
    LROWS nnnn Number of logical rows for the output area (must be between ROWS and 9999). 99
    MODE cc Mode of operation for OMEGAMON for MVS. CN
    PREFIX cccccccc High level qualifier used to install OMEGAMON for MVS. none
    PRTY nn,nn OMEGAMON for MVS dispatching priority. Your system specifications might override this value. 15,15
    REG nnnnK Region size in K. 1536K
    rhilev.rte cccccccc The high-level qualifier of the runtime libraries at your site. YYYYYY
    ROWS nn Number of physical rows on OMEGAMON for MVS terminal. 24
    SYS cccc 4-character system ID to display on the first row of OMEGAMON for MVS screen. If SYS=SMF, OMEGAMON for MVS uses the SMF system ID. SMF
    TIM nnnn OMEGAMON for MVS CPU time limit. 1439
    UNIT uuuu Device address of OMEGAMON for MVS terminal. If you specify uuuu, OMEGAMON for MVS ignores the CONSOLE DD statement. none
    USR cc 2-character profile suffix. Indicates which OMEGAMON user profile you are using. none
     

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