Understanding the IBM TotalStorage Open Software Family

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

infrastructure.

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

configurations.

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

configuration

򐂰 Outstanding problem determination with cross-device configuration

򐂰 Centralized management of storage devices with browser launch capabilities