User Guide

Overview 13
Storage Management Services Administration Guide
103-000134-001
August 29, 2001
Novell Confidential
Manual 99a38 July 17, 2001
Storage Management Data Requester
The Storage Management Data Requester (SMDR) is the communication
module in the SMS architecture. It provides transparent access to SMS
services in an intranet as it allows access to local or remote SMS services. The
SMDR APIs are used by SBCON and other third-party applications as well.
SMDR uses TCP Port Number 413.
Features of SMDR
The features of the SMDR 6.00 include the following:
Protocol Independence: SMDR 6.00 is protocol independent and does not
depend on Sequenced Packet Exchange
TM
(SPX
TM
) or Internetwork Packet
Exchange
TM
(IPX
TM
) protocols. From NetWare 5.1 onwards, the requester also
uses TCP/IP for communicating with other SMDRs. Although SMDR 6.00
can be configured to support TCP/IP, SPX/IPX
TM
, or TCP/IP and SPX/IPX,
both protocols are supported by default. SMDR versions prior to 5.00 use the
SPX protocol.
If cluster-enabled pools are to be backed up or restored, use SLP as the
discovery mechanism.
The protocols can be specified in the configuration file, SMDR.CFG (see
“Using the SMDR Configuration File” on page 14 for more information).
NDS Registration and Name Resolution: SMDR creates an SMS Remote
Procedure Call (RPC) object in eDirectory. The default tree of the server (the
tree in which the server is present) is used for eDirectory registration.
The SMS RPC object is defined with the following attributes:
 Common Name - Name of the server on which the SMDR is located
 Status - Indicates whether the SMDR is active or inactive
 Protocol - List of protocols for which the SMDR has listeners
 Version - Version number of the SMDR
 Services - List of services registered with the SMDR
The SMDR creates an instance of this RPC class at the SMDR Context
location in the server's default tree. The SMDR Context is specified in the
SMDR.CFG file, which can be edited at any given time.
Multiple SMDRs are grouped together to reduce the search scope in
eDirectory. A SMDR Group object defines this search scope. This group