Results 1 to 4 of 4
  1. #1
    Join Date
    Jan 2004
    Posts
    24

    Unanswered: Why RMAN needs dedicated server process

    Hi all,

    I want to know why RMAN in Oracle 9i
    cannt connect with target database through a
    shared server dispatcher .Why it needs a dedicated
    server process?

    Thankz in advance

    Uma.Movva

  2. #2
    Join Date
    Nov 2003
    Location
    Bangalore, INDIA
    Posts
    333

    Thumbs up

    Hi,

    Look at the following Document in MetaLink,

    Doc ID : Note:153280.1
    Subject: RMAN 9i: Recovery Manager Quick Reference Guide
    SATHISH .

  3. #3
    Join Date
    Jan 2004
    Posts
    24
    Originally posted by satish_ct
    Hi,

    Thank you.
    I don't have access to Metalink.
    Can u suggest any other site

    Regards
    Uma.Movva
    Look at the following Document in MetaLink,

    Doc ID : Note:153280.1
    Subject: RMAN 9i: Recovery Manager Quick Reference Guide

  4. #4
    Join Date
    Sep 2003
    Location
    Milan, Italy
    Posts
    130

    Re: Why RMAN needs dedicated server process

    Originally posted by movva_uma
    Why it needs a dedicated server process?
    Because RMAN tipically will issue commands that will run for minutes if not for hours - it would monopolize the shared server if connected through a dispatcher, so preventing other users from using it; since the number of shared server is normally "low" (say, 20) and very busy, monopolizing even only one (but probably RMAN uses more than one of them) may impact the throughput seriously.

    It would be like having a time-sharing system without preemption (the shared servers act like the cpus in this analogy).

    Mts works well if the commands are short in duration and interleaved with "long" periods of inactivity, which is normally the case but not for MTS and e.g. Advanced Queueing.

    HTH
    Alberto

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •