HP Storage Essentials Enterprise Edition Software User Manual

HP Storage Essentials SRM Enterprise Edition 6.0

Application Integration Software

for SAP ACC version A.02.01

User Guide

First edition: July 2008

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HP Storage Essentials SRM Enterprise Edition Application Integration Software for SAP ACC version A.02.01 User Guide

About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Document Conventions and Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

HP Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

HP-authorized Reseller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Helpful Web Sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Contents

1SAP Adaptive Computing Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

SAP ACC Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

The Virtual SAP Landscape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SAP ACC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Virtual IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Virtualized Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Application Integration Software for SAP ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

HP Storage Essentials SRM Enterprise Edition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Active Host Management Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Application Integration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2 Creating an Adaptive Landscape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

SAP Virtual Landscape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Configuring the SAP ACC Landscape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

To configure the SAP ACC landscape. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Configuring the SAP Instance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

To configure the Storage integration in the SAP ACC interface . . . . . . . . . . . . . . . . . . 13

3 Install HP Storage Essentials SRM and HP SIM . . . . . . . . . . . . . . . . . . . . . . . . . 15

User Account . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Storage System Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

SAN Zoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Host Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Reserved-Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4 Install the Application Integration Software for SAP ACC . . . . . . . . . . . . . . . . . . 19

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

New Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

To install the Application Integration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Upgrade Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

To upgrade the Application Integration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Installation Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

User Guide iii

Uninstall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

To remove a previous version of the Application Integration Software for SAP ACC . . . . 24

5 Interprocess Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Communication Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

OpenSSH Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Installing OpenSSH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

To install OpenSSH on HP-UX Mangaged Nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Configuring OpenSSH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

To configure OpenSSH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Verifying Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

To verify HP SIM communication with the Managed Node . . . . . . . . . . . . . . . . . . . . . 26

6 Install the Integration Library on Managed Nodes . . . . . . . . . . . . . . . . . . . . . . . 29

Installing the Storage Specific Integration Library on Managed Nodes . . . . . . . . . . . . . . . . . . . . 29

To install the storage specific integration library on Managed Nodes. . . . . . . . . . . . . . 29

Uninstalling the Storage Specific Integration Library on Managed Nodes . . . . . . . . . . . . . . . . . . 30

To uninstall the storage specific integration library on Managed Nodes . . . . . . . . . . . . 30

7 Storage Resource Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Adding a Storage Resource Identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

To add a Storage Resource ID to the Integration Software database: . . . . . . . . . . . . . . 33

Viewing Resource Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

To view resource information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Removing a Storage Resource . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

To remove a Storage Resource Identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8 Application Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

To view application log entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

9 Program Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Changing the User Name and Password Used for Communicating with HP Storage Essentials SRM 43

To change the user name and/or password: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Changing the Reserved-Group Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

To change the Reserved-Group assignment for a specific array:. . . . . . . . . . . . . . . . . . 44

10Operational Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Operational Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Location of Important Log Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Common Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Library Call Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Provisioning Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

An Eelement in HP Storage Essentials SRM is Reported as “(missing)” . . . . . . . . . . . . . . . . . . 50

HP Storage Essentials SRM is Out of Sync with Managed Host or Storage Array. . . . . . . . . . . 50

Failed Mount Operation with HP-UX Hosts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

HP-UX 11.23 Maximum Number of Volume Groups Limitation . . . . . . . . . . . . . . . . . . . . . . . 51

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figures

1 Components to create a virtualized application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 Virtual SAP instance on physical server HostA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 SAP instance is moved from HostA to HostB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4 Architecture for SAP Adaptive Computing Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5 Overview of the SAP ACC library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

6 Relationship between physical storage and file systems for HP-UX systems . . . . . . . . . . . . . . . . 9

7 Configuring the Storage Integration in the SAP ACC Interface . . . . . . . . . . . . . . . . . . . . . . . . 13

8 Communication between systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

9 Associating physical storage to the storage resource . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10 Storage resource information displayed in Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

User Guide v

Tables

1 Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

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About This Guide

This guide provides information about the implementation of the HP Storage Essentials Storage Resource Management (SRM) Enterprise Edition Application Integration Software for SAP Adaptive Computing Controller. The Application Integration Software is available with HP Storage Essentials Storage Resource Management (SRM) to enable and integrate with the Adaptive Computing Controller from SAP when using SAN attached storage on HP StorageWorks arrays.

Intended Audience

This guide is intended for:

• Storage Administrator

• System Administrator

• SAP Basis Administrator

• Network Administrator

Prerequisites

Prerequisites for using this product include knowledge in the following areas:

• Networking

• Storage Area Networks (SANs)

• The Common Information Model (CIM)

• HP Storage Essentials Storage Resource Management

• HP Systems Insight Manager

Document Conventions and Symbols

Table 1 Document conventions

Convention Element

Medium blue text: Figure 1 Cross-reference links and e-mail addresses

Medium blue, underlined text (

http://www.hp.com)

Bold font • Key names

Italics font Text emphasis

Monospace font • File and directory names

Monospace, italic font • Code variables

Monospace, bold font Emphasis of file and directory names, system output, code, and

Web site addresses

• Text typed into a GUI element, such as into a box

• GUI elements that are clicked or selected, such as menu and

list items, buttons, and check boxes

• System output

• Code

• Text typed at the command-line

• Command-line variables

text typed at the command line

WARNING! Indicates that failure to follow directions could result in bodily harm or death.

CAUTION: Indicates that failure to follow directions could result in damage to equipment or data.

IMPORTANT: Provides clarifying information or specific instructions.

NOTE: Provides additional information.

TIP: Provides helpful hints and shortcuts.

HP Technical Support

Telephone numbers for worldwide technical support are listed on the HP support web site:

http://www.hp.com/support/

Collect the following information before calling:

• Technical support registration number (if applicable)

• Product serial numbers

• Product model names and numbers

• Applicable error messages

• Operating system type and revision level

• Detailed, specific questions

For continuous quality improvement, calls may be recorded or monitored.

HP strongly recommends that customers sign up online using the Subscriber's choice web site at

http://www.hp.com/go/e-updates

• Subscribing to this service provides you with e-mail updates on the latest product enhancements,

newest versions of drivers, and firmware documentation updates as well as instant access to numerous other product resources.

• After signing up, you can quickly locate your products by selecting Business support and then

Storage under Product Category.

HP-authorized Reseller

For the name of your nearest HP-authorized reseller:

• In the United States, call 1-800-345-1518.

• Elsewhere, visit the HP web site: http://www.hp.com

and telephone numbers.

Helpful Web Sites

For third-party product information, see the following HP web sites:

• http://www.hp.com

• http://www.hp.com/go/storage

• http://www.hp.com/support/

. Then click Contact HP to find locations

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1 SAP Adaptive Computing Overview

This chapter describes the following:

• SAP ACC Overview, page 2

• Application Integration Software for SAP ACC, page 9

With the increasing complexity and inflexibility of the traditional SAP® environment, it has become necessary to rethink the way that a SAP environment is managed. With the SAP Adaptive Computing Controller (ACC), SAP has taken the first steps in improving the management of the SAP Landscape and has provided a number of integration points for vendors to extend the Adaptive Computing Controller functionality.

This document describes the solution from Hewlett-Packard (HP) to extend SAP Adaptive Computing environment enabling the support of Storage Area Network (SAN) attached storage from HP. The document provides background information about the adaptive computing concept and the specific integration points used by HP. This user guide also describes the usage of the integrated solution with the SAP ACC in detail.

The basis of the SAP ACC is to virtualize the SAP application from the underlying computing environment and to arrange the software services together in a group of resources that can start, stop, or be moved from any system, at any time, when needed, where needed. The process of abstracting the SAP software from the underlying hardware is known as Service Virtualization, and it requires that the SAP instance and all resources necessary for the virtual resource be independent of any physical system or system resource. This includes the IP address or host name for the software service, as well as any storage used by the service.

The benefits of implementing an adaptive computing environment include the following:

• Lower total cost of ownership (TCO)

• Better server utilization

• Better control of IT landscape

• Higher service levels at lower cost

• A standard approach to the four basic building blocks of your IT landscape: computing,

network, storage, and management

• Productivity

• Faster response time to business-driven needs

• Reduced operation complexity

• Flexibility

• Ability to assign and use hardware resources when needed

• Ease of adding or modifying hardware components in the landscape

User Guide 1

SAP ACC Overview

The following section provides some basic background on the structure and functionality of the SAP Adaptive Computing Controller (SAP ACC). For more detailed information, refer to the documentation provided by SAP on this subject. It is available at http://service.sap.com/adaptive This URL requires you to provide an SAP S-user ID.

The following topics are covered in this section:

• The Virtual SAP Landscape, page 2

• SAP ACC Components, page 4

• Virtual IP Address, page 7

• Control, page 9

The Virtual SAP Landscape

To create an adaptive SAP landscape, it is necessary to have a virtual application setup. The application and all the resources belonging to the applications (network and storage) must be grouped together into one unit that can be moved from one system to another independent from anything else on the system.

The following figure describes the components to create a virtualized application.

Figure 1 Components to create a virtualized application

A SAP instance consists of network resources that include a virtual host name and a virtual IP address. This virtual IP address is different from the dedicated server IP address assigned to the hardware. The virtual IP address of the application makes it possible to connect to the application, independent of the hardware, anywhere in the landscape.

The SAP instance also consists of physical storage, either Network Attached Storage (NAS) or Storage Area Network (SAN)-attached storage. The storage is made up of file systems located on logical devices (Ldev) from a storage system. The SAP ACC groups all the storage components of an instance under the Storage Resource Identifier (SRID) and lets you create a custom name for the storage component of the instance.

The HP Storage Essentials Storage Resource Management (SRM) Enterprise Edition Application Integration Software for SAP ACC provides a link between the SRID created in SAP and the physical

SAP Adaptive Computing Overview2

storage resources that are associated with that instance. This allows HP Storage Essentials SRM to Present or Un-present this storage from any host in the SAN.

In the following figure, the virtual SAP instance is running on physical server HostA. The SAP Instance has two SAN-attached storage devices mapped from the storage array to the server.

Figure 2 Virtual SAP instance on physical server HostA

Let’s assume the SAP administrator decides that it is necessary to move this SAP instance from server HostA to server HostB due to business reasons or for maintenance. The SAP administrator initiates the service relocation from the GUI of the SAP Adaptive Computing controller. The SAP ACC is responcible for the application shutdown and startup function, but will call the Application Integration Software for SAP ACC, which is running on the HP Storage Essentials server, to ensure that the storage devices are removed from server HostA and are presented to server HostB.

User Guide 3

The following figure shows the status of the landscape after the service relocation is completed.

Figure 3 SAP instance is moved from HostA to HostB

The SAP ACC gives the SAP administrator the power and flexibility to stop, start, or relocate any SAP instance to any system in the landscape when needed and based on what resources are available.

SAP ACC Components

SAP developed the ACC as a system management-like application based on the J2EE engine of the Web application server. The ACC software runs on a control node and interacts with other SAP components to create a full image of the entire SAP landscape. The SAP ACC also implements a component that runs on the Managed Node, enabling SAP to perform specific function on each node.

SAP Adaptive Computing Overview4

The following is a high level diagram of the SAP ACC Architecture.

Figure 4 Architecture for SAP Adaptive Computing Controller

The ACC station or Control node consists of the NetWeaver 7.1 Java Engine and the Adaptive Computing Controller software. The ACC software communicates with the System Landscape Directory (SLD) to derive a list of Managed Nodes installed in the SAP Landscape. Each Managed Node needs to register itself in the SLD using remote function calls, and the SLD collects status information from the Managed Node using the saposcol agent installed on each Managed Node.

The gateway process can be implemented either as a standalone or as an integrated gateway system.

All Adaptive Computing operations are initiated and controlled from the SAP ACC control node using the GUI provided by SAP.

SAP ACC version 7.1 utilizes the SAP Host Agent infrastructure (sapacosprep, saposcol, sldreg, and so on), which is installed on each Managed Node in the system landscape to initiate all host-based operations. This agent receives command operations from the central SAP ACC controller and executes the necessary integration modules to enable adaptive computing functions on the Managed Node.

Internally, the SAP host agent’s “sapacosprep” is made up of a platform/partner independent module and an API that enables partners to integrate their platform and storage solutions by

User Guide 5

providing the necessary integration modules. The functions that the partner modules need to provide can be divided into two categories:

• Functions that are platform-specific

• Activate an IP address

• Deactivate a virtual IP address

• Attach a network file system

• Detach a network file system

• Functions that are storage-specific

• Attach a distributed file system

• Detach a distributed file system

• Attach a Storage Resource

• Detach a Storage Resource

Besides the two partner modules, SAP maintains and offers a common function module that provides:

• Setup and callback functions

• Return module version and information

SAP Adaptive Computing Overview6

The following figure provides an overview of the SAP ACC integration library, the functions implemented, and the available vendor integration point.

Figure 5 Overview of the SAP ACC library

Keep in mind the following about Figure 5, “Overview of the SAP ACC library,” on page 7:

• The platform-specific modules are provided by each platform hardware/operating system

support team. For HP-UX, these modules are provided by the HP SAP consulting and integration team for HP-UX, which are available by email request to HPUX.ACC@hp.com. The storage-specific modules are provided by each storage vendor. Storage-specific modules can also be platform-specific. The Application Integration Software for SAP ACC distributes this storage-specific module for HP StorageWorks arrays.

Virtual IP Address

Adaptive Computing uses the concept of assigning a unique virtual IP address and network name to the application, and by doing this, it separates the application from the physical host IP address. The process of using virtual IP addresses for applications is commonly used in all cluster systems, and all major operating system releases support the overloading of a network interface card with multiple IP addresses. The advantage of this apprach is that you can always access the application through one unique name, no matter where the application is running.

User Guide 7

NOTE: Platform specific libraries are required to install or convert a SAP installation to a virtual

landscape. These libraries enable virtual IP addresses on the Managed Nodes.

Virtualized Data

Adaptive Computing also implements the concept of virtualizing the application data into a single group of data devices (Storage Resources) that can be moved between physical Managed Nodes. The first requirement to accomplish data virtualization is to ensure that all the data required for the application is located on a dedicated set of storage devices. For the Application Integration Software for SAP ACC, it is required that all the storage devices for a specific SAP application are located on a central storage system with SAN access from all of the Managed Nodes. In the SAP ACC, the set of physical Storage Resources that are required for a specific SAP instance are identified by a Storage Resource Identifier (SRID). This identifier provides the link between the SAP ACC application and the Application Integration Software for SAP ACC.

The Application Integration Software for SAP ACC is specifically designed to support SAN-attached storage in an adaptive landscape.

The following diagram shows the relationships between physical storage devices and their usage on HP-UX systems.

SAP Adaptive Computing Overview8

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