58 Understanding the IBM TotalStorage Open Software Family
Figure 2-8 Tivoli Storage Resource Manager
Before using IBM Tivoli Storage Resource Manager to manage your storage, it
was difficult to get advance warning of out-of-space conditions on critical
application servers. If an application did run out of storage on a server, it would
typically just stop. This means revenue generated from that application or the
service provided by it also stopped. And it incurred a high cost to fix it, as fixing
unplanned outages is usually expensive.
With IBM Tivoli Storage Resource Manager, applications will not run out of
storage. You will know when they need more storage, and can get it at a
reasonable cost before an outage occurs. You will avoid the loss of revenue and
services, plus the additional costs associated with unplanned outages.
2.3.3 IBM TotalStorage Multiple Device Manager
Multiple Device Manager (MDM) is designed to enable administrators to manage
storage area network (SAN) storage components based on the Storage
Networking Industry Association (SNIA) Storage Management Interface
Chapter 2. Storage Orchestration 59
Specification (SMI-S). Multiple Device Manager also includes the IBM Tivoli
Bonus Pack for SAN Management, bringing together device management with
fabric management. This combination is designed to allow a storage
administrator to configure storage devices from a single point, monitor SAN
status, and provide operational support to storage devices.
Managing a virtualized SAN
In a pooled or virtualized SAN environment, multiple devices work together to
create a storage solution. Multiple Device Manager is designed to provide
integrated administration, optimization, and replication features for these
virtualization solutions. Multiple Device Manager supports the following:
򐂰 The IBM TotalStorage SAN Volume Controller
򐂰 The IBM TotalStorage Enterprise Storage Server (ESS)
򐂰 The IBM TotalStorage FAStT family of storage servers
Multiple Device Manager is designed to provide an integrated view of an entire
SAN system to help administrators perform complex configuration tasks and
productively manage the SAN infrastructure. Multiple Device Manager offers
features that can help simplify the establishment, monitoring, and control of
disaster recovery and data migration solutions, because the virtualization layers
support advanced replication configurations.
For example, IBM TotalStorage ESS is designed to offer enterprise-class
availability, price/performance, and low total cost of ownership (TCO). The IBM
TotalStorage FAStT Family of Servers is also designed to offer low cost disk
storage. Multiple Device Manager offers you the opportunity to efficiently manage
a mixed ESS and FAStT environment, providing efficient storage solutions
tailored to match your unique requirements.
Multiple Device Manager includes the IBM Tivoli Bonus Pack for SAN
Management (TSANM), which supports up to 64 Fibre Channel ports. With the
inclusion of SAN Manager, a storage administrator can view Fibre Channel and
SMI-S enabled storage devices, automate zoning of clients, logical units (LUs),
and storage devices for the IBM TotalStorage SAN Volume Controller
environment, and allow drill-down from storage devices to the underlying
Multiple Device Manager contains three major components:
򐂰 Device Manager
򐂰 Performance Manager
򐂰 Replication Manager
Figure 2-9 on page 60 provides an overview of Multiple Device Manager.
60 Understanding the IBM TotalStorage Open Software Family
Figure 2-9 Multiple Device Manager overview
Device Manager
The Device Manager of Multiple Device Manager functions with both the
Performance Manager and Replication Manager features. It is designed to
discover supported devices, collect asset, configuration, and availability data
from the supported devices, and provide a limited topography view of the storage
usage relationships among these devices. It is designed to allow the user to view
essential information about storage devices discovered by Multiple Device
Manager, examine the relationships among the devices, and change their
The Device Manager builds on the IBM Director infrastructure to provide
discovery of storage devices that adhere to the SNIA SMI-S standards. Device
Manager is designed to use the Service Location Protocol (SLP) to discover
supported storage subsystems on the SAN and create managed objects to
represent these discovered devices and display them as individual icons in the
Group Contents pane of the IBM Director Console.
Device Manager is designed to offer:
򐂰 Centralized access to information from storage devices
򐂰 Enhanced storage administrator productivity with integrated volume
򐂰 Outstanding problem determination with cross-device configuration
򐂰 Centralized management of storage devices with browser launch capabilities

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