HP Xw460c - ProLiant - Blade Workstation Manuale utente

Session Allocation Manager 2.1—Optimizing your HP

Blade Workstation Solution Deployment

Objective............................................................................................................................................ 2

Overview............................................................................................................................................ 2

SAM architecture................................................................................................................................. 4

SAM features and benefits.................................................................................................................... 6

Interfacing to SAM............................................................................................................................... 8

HP SAM Web Server interface .......................................................................................................... 8

SAM client user interface .................................................................................................................. 9

Example: Establishing a multi-monitor, multi-session connection to two blade workstations ............................ 9

Step 1: Assign blade workstations to the user .................................................................................... 10

Step 2: Map blade workstations to a particular monitor layout ............................................................ 10

Step 3: Specify the client computer monitor layout ............................................................................. 11

Step 4: Establish a connection ......................................................................................................... 12

Conclusion........................................................................................................................................ 13

Objective

This paper describes how Session Allocation Manager (SAM) 2.1 can be used to optimize your HP

Blade Workstation Solution deployment, enhancing both manageability and ease-of-use. For example,

SAM allows the HP Blade Workstation Solution to be configured so that the user needs to log in only

once in order to be connected to multiple blade workstations.

This paper first provides an overview of the HP Blade Workstation Solution, as well as other HP

remote desktop solutions. Next, the SAM architecture is presented, followed by a description of the

SAM features, benefits, and user interface and an example of how SAM can be used to establish a

connection from a client computer to multiple blade workstations.

For more additional information on SAM, please visit http://www.hp.com/go/sam.

Overview

Remote computing, coupled with high-performance, over-the-network visualization technology, is

changing the traditional desktop computing model. The HP Blade Workstation Solution, shown in

Figure 1, exemplifies this trend. Rather than placing the workstation computing power at the user’s

desk, the computing power is moved to the data center where the rack-mounted blade workstations

can be more easily, securely, and inexpensively managed. Users can remotely view and interact with

the blade workstations using inexpensive client computers. This reduces the heat, clutter, and noise

inherent in multi-workstation desktop configurations. For information on the HP Blade Workstation

Solution, visit http://www.hp.com/go/bladeworkstation.

Figure 1. The HP Blade Workstation Solution consists of rack-mounted blade workstations and client computers

For customers who need a remote computing solution to replace business desktops, HP offers the HP

Consolidated Client Infrastructure (CCI), which employs rack-mounted blade PCs and low-cost client

computers. For information on CCI, visit http://www.hp.com/go/cci.

HP also offers virtualized desktop computing resources, based on the HP virtual desktop infrastructure

(VDI). With VDI, OS virtualization software executes on a server to allow a desktop OS, such as

Microsoft® Windows® XP, to run on the server. To support multiple users, multiple copies of

Windows can be run on a single server, each in their own virtualized OS environment. As with blade

workstations and CCI, low-cost client computers are used to view and interact with the desktop

sessions. For information on VDI, visit http://www.hp.com/go/vdi.

When applied to these remote computing solutions, SAM enhances:

• Manageability—SAM supports management of both the remote computing resources and client

computers, helping to ensure the optimal assignment of resources to each user. SAM also increases

system reliability through features such as automatic failover protection.

• Ease-of-use—SAM enhances the user experience by allowing the user to log into SAM once, and

then be automatically connected to either pre-assigned remote computing resources or to

dynamically-assigned computing resources. When users move to a different location, SAM can be

configured to automatically re-connect users to their previous remote computing resources.

Data Cente

HP ProLiant xw460c

Blade Workstations

Site #1

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SAM architecture

The computing resources supported by SAM consist of blade workstations, blade PCs, the virtual

desktop infrastructure, and client computers, as shown in Figure 2.

Figure 2. The elements of the SAM architecture

The HP SAM Web Server orchestrates connections between these computing resources and the client

computers. When a user requests a connection to a computing resource, the HP SAM Web Server

accesses the SQL Server database to determine how to allocate the requested computing resources to

the user. The SQL database stores information such as:

• The properties of each of the computing resources, including the roles that each computer is

configured to provide. An example administrator-defined role is stock trader. Applications specific

to this role are installed on computers that support this role.

• The properties of each of the client computers, such as their monitor layout ID, which is associated

with the number of attached monitors, their layout, and their resolutions.

• The HP Remote Graphics Software (RGS) properties to use when making an RGS connection, such

as windows borders on/off and the RGS image compression level.

Based on this information, SAM allocates the remote computing resources required by each user. In

doing this, the desktop session of one or more computing resources is displayed on the client

computer.

SAM uses RGS to connect client computers and blade workstations. As shown in Figure 3, RGS sends

the desktop image from the blade workstation to the client computer. RGS also captures user

Blade

Workstations

Blade

PCs

HP Server

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RGS or RDP

keyboard and mouse inputs from the client computer, and sends them to the blade workstation for

processing by the OS and the applications running on the workstation.

Figure 3. RGS provides visualization between a blade workstation and a client computer.

RGS provides extremely fast capture, compression, and transmission of the desktop image (the actual

frame buffer pixels) using standard TCP/IP networking. For more information on RGS, visit

http://www.hp.com/go/rgs.

SAM also supports the use of Microsoft® Remote Desktop Protocol (RDP) to connect between client

computers and the computing resources. RGS, however, provides significantly higher performance

than RDP, and has a number of features which make it particularly suitable for workstation-class

usage, including:

• Support for multiple monitors—RGS sends the complete frame buffer of the blade workstation to the

client computer. For example, the HP ProLiant xw460c Blade Workstation supports a frame buffer

(and Windows desktop) that can be configured up to 5120 x 1024 pixels, equivalent to four 1280

x 1024 monitors. Similarly, the HP dc72 Blade Workstation Client supports up to four attached

monitors. Therefore, the complete frame buffer (Windows desktop) of the blade workstation can be

transmitted and displayed on the four client monitors using RGS.

• Connection to multiple blade workstations—RGS on the client computer can connect to multiple

desktop sessions, each running on a different blade workstation. Figure 4 shows two blade

workstations, each sending their Windows desktop session to the client computer for display. SAM

can be configured so that, in connecting to multiple blade workstations, the desktop session of each

blade workstation is displayed on a separate monitor on the client computer.

HP ProLiant xw460c

Blade Workstation

HP Compaq t5720

Thin Client

This symbol denotes the HP

RGS product. The stylistic R

stands for “Remote” while the

Greek gamma symbol stands

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Figure 4. Desktop sessions from multiple computing resources can each be displayed on a separate monitor on the client

computer.

• Advanced configurability—RGS is highly configurable, both through its user interface as well as by

setting RGS properties in a configuration file. For example, RGS properties can be set to specify

where a window (displaying the desktop from a blade workstation) is positioned on the client

monitor. SAM provides centralized management of the RGS properties, including on a per user

basis, a per user group basis, and a per security group basis.

SAM features and benefits

SAM has a number of features that allow optimization of the HP Blade Workstation Solution,

including:

Static and dynamic resource assignments—SAM supports two types of resource assignments:

• Static resources—A user and the user’s client computer are connected to a pre-defined set of remote

computing resources, even when the user changes location.

• Dynamic resources—Users are assigned remote computing resources from a pool of available

computing resources.

These two types of resource assignments provide significant flexibility in meeting the needs of your

users.

• Single log in—SAM simplifies the user experience by allowing the user to log in just once, even if

the user is connecting to multiple blade workstations. Furthermore, with a multi-monitor client

computer, SAM will automatically position the user’s windows on the client computer monitors

based on pre-configured information. The net result is that logging into the blade workstation

solution is as simple as logging into a single workstation.

• Follow-me roaming—This feature enables users to move to a different location, and be

automatically re-connected to the same computing resources they used previously, without

disrupting the applications running on the computing resources. In doing this, SAM automatically

adapts to different monitor configurations. For example, assume that a user has four monitors in the

office, each displaying the frame buffer from a different blade workstation. If the user relocates to

home where there is only one monitor, SAM will re-connect to the live sessions on the same four

Client com

uter

Com

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resources

blade workstations as before, but will stack the four frame buffer windows onto the single monitor

for viewing. RGS can then be used to sequentially view each of the four windows.

• Automatic failover—SAM can be configured so that, if a blade workstation fails, another blade

workstation will be automatically assigned to the task performed by the failed unit. This feature

works for both static and dynamic connections, maximizing both the uptime of the blade

workstation solution and the user’s productivity.

• Automatic client aggregation—The HP Blade Workstation Solution, in concert with RGS, allows

multiple blade workstation client computers to be aggregated together to form a single virtual client

device, operated by a single keyboard and mouse. SAM can be configured to perform client

aggregation automatically, while ensuring that each client computer connects to its pre-configured

set of blade workstations.

• Ease of administration—SAM provides a web interface that allows all parameters of SAM

operation to be easily monitored and changed from a central location. This is much more efficient

than configuring the blade workstation solution by separately logging into each solution

component.

• Detailed logging—SAM can be configured to keep a detailed log of connection activities,

administration activities, security-related incidents, and the like.

Interfacing to SAM

SAM provides interfaces for two types of personnel:

• SAM administrator—The HP SAM Web Server provides a web interface for the administrator to set

up SAM and manage its resources.

• SAM user—A program called the Session Allocation Client runs on each client computer to enable

the user to establish a connection to the required computing resources.

HP SAM Web Server interface

The web interface for administering SAM is shown in Figure 5. Through this interface, the SAM

administrator can perform tasks such as creating new roles, assigning computing resources to users,

managing client computers, and managing the monitor layout on client computers.

Figure 5. The SAM administrator interface

For information on installing, setting up, and administering SAM, see the HP PC Session Allocation

Manager User Guide, available at http://www.hp.com/go/sam.

SAM client user interface

Figure 6 shows the Session Allocation Client (SAM client) that runs on the client computer. With the

SAM client, a single login allows connection to multiple blade workstations.

Figure 6. The Session Allocation Client interface

Example: Establishing a multi-monitor, multi-session

connection to two blade workstations

In this section, a static SAM connection is established from a dual-monitor client computer to two

blade workstations, each running a Windows desktop session—hence, a multi-monitor, multi-session

connection. Each of the Windows desktop sessions is displayed on a separate monitor on the client

computer.

NOTE:

The screenshots in this section show the results of various SAM

administrative activities, not how the administrative steps are actually

performed. To learn how to use SAM, refer to the documentation available

at http://www.hp.com/go/sam.

Note that using SAM requires expertise in administering Microsoft Active

Directory, as well as general IT expertise to set up and configure the

product. HP recommends that, prior to deploying SAM, a pilot installation

be created to verify SAM operation in your environment.

Step 1: Assign blade workstations to the user

In Figure 7, two blade workstations (SAM-BL32 and SAM-BL41) have been assigned to the user,

stock.trader.

Figure 7. Two blade workstations are associated with the user stock.trader.

Step 2: Map blade workstations to a particular monitor layout

In Figure 8, each of the blade workstations is mapped to a particular monitor. The blade workstation

SAM-BL32 is mapped to the left-most monitor (because the monitor horizontal offset is set to 0) while

the blade workstation SAM-BL41 is mapped to the right-most monitor (because the monitor horizontal

offset is set to 1280). This monitor layout is associated with the Monitor Layout ID, “two screen

horizontal.”

Figure 8. Mapping of the two blade workstations to the two client computer monitors

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