rfc1697.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.

Network Working Group                                  D. Brower, Editor
Request for Comments: 1697        The ASK Group, INGRES DBMS Development
Category: Standards Track         B. Purvy, RDBMSMIB Working Group Chair
                                                      Oracle Corporation
                                                               A. Daniel
                                                 Informix Software, Inc.
                                                              M. Sinykin
                                                                J. Smith
                                                      Oracle Corporation
                                                             August 1994


             Relational Database Management System (RDBMS)
             Management Information Base (MIB) using SMIv2

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Table of Contents

   1. Introduction ..............................................    1
   2. The SNMPv2 Network Management Framework ...................    2
   2.1 Object Definitions .......................................    2
   3. Overview ..................................................    2
   3.1 Terminology ..............................................    3
   3.2 Structure and Features ...................................    4
   3.2.1 Tables .................................................    4
   3.2.2 Writable objects .......................................    5
   3.2.3 Traps ..................................................    5
   4. Definitions ...............................................    6
   5. Acknowledgements ..........................................   35
   6. References ................................................   36
   7. Security Considerations ...................................   37
   8. Authors' Addresses ........................................   37

1.  Introduction

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   In particular, it describes managed objects used for managing
   relational database (RDBMS) implementations.





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RFC 1697                       RDBMS-MIB                     August 1994


2.  The SNMPv2 Network Management Framework

   The SNMPv2 Network Management Framework consists of four major
   components.  They are:

      o RFC 1442 [1] which defines the SMI, the mechanisms used for
        describing and naming objects for the purpose of management.

      o STD 17, RFC 1213 [2] defines MIB-II, the core set of managed
        objects for the Internet suite of protocols.

      o RFC 1445 [3] which defines the administrative and other
        architectural aspects of the framework.

      o RFC 1448 [4] which defines the protocol used for network
        access to managed objects.

      o RFC 1443 [5] which describes textual conventions for the
        framework.

   The framework permits new objects to be defined for the purpose of
   experimentation and evaluation.  In particular, the RDBMS-MIB can be
   seen as an extension of

      o RFC 1565 [6] which defines the MIB for monitoring network
        service applications.

2.1.  Object Definitions

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the subset of Abstract Syntax Notation One (ASN.1)
   defined in the SMI.  In particular, each object type is named by an
   OBJECT IDENTIFIER, an administratively assigned name.  The object
   type together with an object instance serves to uniquely identify a
   specific instantiation of the object.  For human convenience, we
   often use a textual string, termed the descriptor, to refer to the
   object type.

3.  Overview

   The RDBMS-MIB contains objects that may be used to manage relational
   database implementations.  Specifically, it contains information on
   installed databases, servers, and on the relation of databases and
   servers.  The terms used in this database are described below.






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RFC 1697                       RDBMS-MIB                     August 1994


3.1.  Terminology

   Vendors and Products
        are providers of database systems on a host.  These vendors
        may have more than one database product that is manageable
        through this MIB.  On a host, there may be systems from
        multiple vendors, multiple systems from a single vendor, or
        any other combination.  There may be a private MIB for each
        vendor, and this may be located using the PrivateMibOID
        objects in some of the tables.

   Databases
        are collections of interrelated data organized according to a
        schema to serve one or more applications. A database is, for
        purposes of this MIB, a collection of tables whose
        organization is based on the relational model. There may be
        one or more databases available in each system on the host
        from each product. In the MIB, data about databases is
        captured in the rdbmsDbTable and the rdbmsDbInfoTable, each
        with one row per database.

   Relational Database Management System (RDBMS)
        A collection of integrated services which support database
        management and together support and control the creation, use
        and maintenance of relational databases. Servers as defined
        in this MIB provide the functions of the RDBMS.

   Servers
        are entities that provide access to databases.  For this MIB,
        servers are defined to be entities that may exist
        independently of other servers.  A server may or may not be a
        single process, based on its independence from other
        processes.  In this MIB, information about servers is
        captured in the rdbmsSvrTable, the rdbmsSvrInfoTable, each
        with one row per server extending the applTable from the
        APPLICATION-MIB of RFC 1565.  The rdbmsSvrTable and
        rdbmsSvrInfoTable are both indexed by the applIndex of that
        MIB.

   Associations
        Inbound associations are local or remote conversations,
        usually instances of the SQL CONNECT statement, as made
        visible in servers.  The MIB does not currently reveal
        individual associations; there are association counters in
        the dbmsSvrInfoTable and the applTable.

   There are also relationships between servers and databases.  All
   obvious relationships are possible and supported:



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   o    1 database : 1 server

   o    1 database : many servers

   o    many databases : 1 server

   o    many databases : many servers

3.2.  Structure and Features

   The information in this MIB module is organized into nine tables,
   twelve potentially writable objects, and two traps, as follows.

3.2.1.  Tables

   o    databases installed on a host/system (rdbmsDbTable)

   o    actively opened databases (rdbmsDbInfoTable)

   o    database configuration parameters (rdbmsDbParamTable)

   o    database limited resources (rdbmsDbLimitedResourceTable)

   o    database servers installed on a system (rdbmsSrvTable)

   o    active database servers (rdbmsSrvInfoTable)

   o    configuration parameters for a server (rdbmsSrvParamTable)

   o    server limited resources (rdbmsSrvLimitedResourceTable)

   o    relation of servers and databases on a host (rdbmsRelTable)

   These entities have broad applicability among database systems, and
   are enough for many monitoring tasks.  They are far from adequate for
   detailed management or performance monitoring of specific database
   products.  This gap is expected to be filled with vendor and product
   specific MIBs addressing the entities that have not been codified
   here.












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RFC 1697                       RDBMS-MIB                     August 1994


3.2.2.  Writable objects

   The MIB requires no writable objects for conformance.  There is no
   expectation that RDBMS systems may be actively managed through this
   MIB.  However, the RDBMS-MIB supports the capability to modify the
   following objects if the implementor so chooses.

   o    rdbmsDbContact

   o    rdbmsDbInfoSizeAllocated

   o    rdbmsDbParamCurrValue

   o    rdbmsDbParamComment rdbmsDbLimitedResourceLimit

   o    rdbmsDbLimitedResourceDescription

   o    rdbmsSrvContact

   o    rdbmsSrvInfoMaxInboundAssociations

   o    rdbmsSrvParamCurrValue

   o    rdbmsSrvParamComment

   o    rdbmsSrvLimitedResourceLimit

   o    rdbmsSrvLimitedResourceDescription

3.2.3.  Traps

   The RDBMS-MIB contains two traps:

   o    rdbmsStateChange

   o    rdbmsOutOfSpace















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RFC 1697                       RDBMS-MIB                     August 1994


4.  Definitions

  RDBMS-MIB DEFINITIONS ::= BEGIN

  IMPORTS
     MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
      Counter32, Gauge32, Integer32
          FROM SNMPv2-SMI
      DisplayString, DateAndTime, AutonomousType
          FROM SNMPv2-TC
      applIndex, applGroup
          FROM APPLICATION-MIB
      mib-2
          FROM RFC1213-MIB;

  rdbmsMIB MODULE-IDENTITY
      LAST-UPDATED "9406150655Z"
      ORGANIZATION "IETF RDBMSMIB Working Group"
      CONTACT-INFO
              "           David Brower

                  Postal: The ASK Group, INGRES DBMS Development
                          1080 Marina Village Parkway
                          Alameda, CA  94501
                          US

                     Tel: [phone]
                     Fax: [phone]

                  E-mail: [e-mail]"
      DESCRIPTION
          "The MIB module to describe objects for generic relational
           databases."

      ::= { mib-2 39 }

  rdbmsObjects        OBJECT IDENTIFIER ::= { rdbmsMIB 1 }

  ----------------------------------------------------------------

  rdbmsDbTable    OBJECT-TYPE
      SYNTAX      SEQUENCE OF RdbmsDbEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The table of databases installed on a system."
      ::= { rdbmsObjects 1 }




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RFC 1697                       RDBMS-MIB                     August 1994


  rdbmsDbEntry    OBJECT-TYPE
      SYNTAX      RdbmsDbEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "An entry for a single database on the host.  Whether a
           particular database is represented by a row in rdbmsDbTable
           may be dependent on the activity level of that database,