HP Universal Print Driver 的驱动器隔离模式设置说明书-USB迷|专注于互联网分享

2024年10月18日发(作者：芮浩壤)

USING DRIVER ISOLATION MODE

with the HP Universal Print Driver

CONTENTS

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

Background .......................................................................................................................... 2

What are the driver isolation mode settings for Windows 7 and Windows Server 2008 R2?......... 2

Would a failure in the cause dependent processes to fail? ........ 2

What is the default isolation mode for HP drivers shipped with the Microsoft operating system? ..... 2

Using the HP UPD in driver isolation mode .................................................................................. 3

Does the HP UPD support driver isolation mode? ...................................................................... 3

What is the HP UPD install default for driver isolation mode? ..................................................... 3

What isolation mode will subsequent installed instances of the HP UPD have? .............................. 3

Will HP UPD Point and Print clients inherit the same isolation mode defined on the print server? ..... 3

Do HP UPD tools have settings specific to isolation mode? ......................................................... 3

Is HP UPD performance impacted in driver isolation mode? ....................................................... 4

Does HP recommend driver isolation mode for the HP UPD? ...................................................... 4

Implementing isolation mode for the HP UPD ............................................................................... 4

How can I use the PMC to define isolation mode for the HP UPD? .............................................. 4

Windows Server 2008 R2 .................................................................................................. 4

Windows 7 ....................................................................................................................... 4

Can the HP UPD driver isolation mode be changed after installation? ......................................... 4

How can I use an HP UPD *.inf file to define isolation mode as the HP UPD installation default (for

HP UPD 5x versions prior to 5.1.1)? ........................................................................................ 5

What “DriverIsolation” settings are supported in the UPD *.inf file? ............................................ 5

DriverIsolation=0 ............................................................................................................... 5

DriverIsolation=2 ............................................................................................................... 5

Can Printbrm manage driver isolation mode? ........................................................................... 5

How can I use Microsoft group policy to manage driver isolation mode? ..................................... 5

OVERVIEW

This white paper describes the advantages of Microsoft® driver isolation mode, how it works, which

systems it supports, and how to use it with the HP Universal Print Driver (UPD).

Background

Microsoft

Windows Server versions 2000, 2003, and 2008, along with client versions Windows

and Windows Vista

, utilized user-mode version 3 print drivers that operate in the print spooler

process . If any driver utilizing fails, all print operations dependent on the

print spool service fail.

To solve this problem, Windows 7 and Windows Server 2008 R2 introduced isolation of print

drivers. Drivers configured in isolation mode run in an independent process

which proxies print services to . In the event of driver instability or failure, the

fails independent of the .

Driver isolation applies to usage of the print driver in the spooler context, not use of the print system

(for example, opening the user interface). Two or more drivers can be defined to share a

process, or a single driver can be defined to a dedicated

process. A driver can only be defined for one mode, while the server supports all three modes in

combination.

What are the driver isolation mode settings for Windows 7 and

Windows Server 2008 R2?

• No Isolation—The driver runs in (the same as for Server 2003, Windows Vista,

Windows XP, and Server 2008 SP2). All drivers set to no isolation share . The failure

of one driver could cause the failure of the entire print system.

Shared—Drivers share the same , separate from , but not

separate from other drivers within the shared process. The failure of one

driver could cause the failure of all drivers sharing the isolated process, but would not cause

failure to .

Isolation—Each driver runs in its own process, separate from ,

and separate from other drivers in isolation. Failure of one driver would not impact other drivers.

Each print queue does not operate in its own instance of the . Instead,

multiple queues using a single driver utilize the same instance of .

•

Would a failure in the cause dependent

processes to fail?

For installed print drivers defined to run in Shared or Isolation mode, is

dependent on the underlying . The process will become operational

again when recovers, but print job context might be lost during the spooler’s stop and

restart process.

What is the default isolation mode for HP drivers shipped with the

Microsoft operating system?

Shared isolation mode is the installed default for HP drivers shipped inbox with Microsoft Windows 7

and Server 2008 R2 operating system installation media.

USING THE HP UPD IN DRIVER ISOLATION MODE

Does the HP UPD support driver isolation mode?

The driver in isolation mode is supported for the HP Universal Print Driver 5.0 and higher on

Windows 7 and Server 2008 R2. This is true for all HP UPD PDLs (PS/PCL5/PCL6), for x32 and x64

bit, and regardless of supported install method. This support includes:

•

HP UPD Dynamic Mode installations

HP UPD Traditional Mode, both version-specific and standard install

Two or more instances of the HP UPD in shared isolation

Combinations of HP UPD instances defined for isolated, shared, or none

All HP UPD supported installation methods (such as Add Printer Wizard, UPD’s ,

printUI, and others)

Jobs spooled utilizing Enhanced MetaFile (EMF) (RAW spooling is handled by the Application

process, not , so isolation mode is not appropriate for RAW)

The ability to define the HP UPD to run in isolation mode via the Print Management Console

(PMC), by Microsoft group policy, and via modification to the driver *.inf files

What is the HP UPD install default for driver isolation mode?

For both traditional and dynamic mode, the installation default for HP UPD prior to 5.1.1 was

isolation mode set to “None”. For 5.1.1 and later, the installation default is “Shared isolation” (this

change was announced in the 5.2 release notes).

What isolation mode will subsequent installed instances of the HP UPD

have?

Assuming the absence of Microsoft policies for isolation mode, any subsequent install of the same

HP UPD version will have the same isolation mode. This assumes that during installation the user

selects, “Use the driver that is currently installed”. This step utilizes the *.inf stored on the local system.

If the user selects “replace the current driver”, the install will use the *.inf where was

launched. If the selected driver is the same version, all installed instances of that driver version will

inherit the defined settings of the *.inf from the installation directory.

Will HP UPD Point and Print clients inherit the same isolation mode

defined on the print server?

Regardless of how isolation mode was defined for the HP UPD on the print server (via the PMC or

using the *.inf prior to server installation), the server that vends the HP UPD to clients will not inherit

isolation mode settings defined for the server. The vended driver will default to the no isolation mode.

Isolation mode is not supported for Point and Print clients running Windows Vista, Windows XP, or

Server 2003.

Do HP UPD tools have settings specific to isolation mode?

HP UPD tools such as Managed Print Administration (MPA), Driver Configuration Utility (DCU), Driver

Deployment Utility (DDU), Active Directory Templates, and UPD’s do not have driver

isolation settings. Driver isolation mode definition can be managed through the PMC, Printbrm, or

Microsoft group policy, or defined in the driver *.inf prior to installation.

Is HP UPD performance impacted in driver isolation mode?

Like other drivers on the system, the HP UPD competes for shared resources on the server. System

resources are required for each driver(s) placed in isolation mode and the Windows system manages

the resource. For each driver defined to run in full isolation mode, a unique instance of

must launch, or drivers in shared isolation can share an instance of

. Trade-offs exist between the stability achieved with driver isolation and

demands on the print server or client. To optimize performance of the system, the Microsoft operating

system opens and closes as required during print service operations.

Does HP recommend driver isolation mode for the HP UPD?

The HP UPD has identical functionality in both isolation and no isolation modes. Beginning with

HP UPD 5.1.1, the driver installs by default to shared isolation mode. The decision to run the HP UPD,

or any other HP driver, in isolation mode should be based upon the resources of the machine and the

stability of all drivers sharing either or . A reasonable approach is

to test new or suspect drivers in full isolation, monitor your resources, and assess driver stability before

including the driver in shared isolation or in no isolation from . A second reasonable

approach is to place drivers in isolation for the protection of the core printing subsystem.

IMPLEMENTING ISOLATION MODE FOR THE HP UPD

How can I use the PMC to define isolation mode for the HP UPD?

HP recommends managing driver isolation settings for an installed instance of the HP UPD through the

Microsoft Management Console (MMC) using the Print Management Console (PMC) snap-in.

Windows Server 2008 R2

The Print Management Console is automatically installed when you install a Print and Document

Services role. (To confirm roles, select Start > Run, then type ‘Server Manager’.) The PMC supports

remote management; installation of the PMC does not have to occur on the actual print server. Install

the Print and Document Services Tools using the Add Features wizard. After the print services role is

enabled on the server, the PMC management interface can be accessed by selecting Start > Run >

MMC, then selecting File > Add/Remove Snap-in. Locate Print Management and select Add, then click

OK.

You can also access the PMC management interface by going to Start > All Programs >

Administrative Tools > Print Management.

Windows 7

The Print Management snap-in is automatically installed and available through the Microsoft

Management Console. To launch the MMC, go to Start and type “MMC” in the Search Programs and

files box. Within the MMC, go to File > Add/Remove Snap-in, select Print Management > Add the

Local Server, select Finish, and click OK. You can also set the HP UPD to isolation mode by going to

Print Management > Printer Servers > [machine_name] > Drivers, select the HP UPD, and right-click

on Set Driver Isolation.

Can the HP UPD driver isolation mode be changed after installation?

Utilizing Microsoft’s Print Management Console, options available for the installed HP UPD driver are

None, Shared, Isolation, and System Default (the setting defined in the *.inf at time of the driver

installation).

How can I use an HP UPD *.inf file to define isolation mode as the

HP UPD installation default (for HP UPD 5x versions prior to 5.1.1)?

Before proceeding with the HP UPD installation, add “DriverIsolation=2” string to a UPD *.inf file (see

the sample section of an UPD *.inf file below). This change can be made to any of the available *.inf

files in the driver package, and changing only one *.inf file is required. The change tells the installer

that isolation mode is supported by the driver and defines the installation default.

[Version]

Signature="$Windows NT$"

Provider=%HP%

ClassGUID={4D36E979-E325-11CE-BFC1-08002BE10318}

Class=Printer

CatalogFile=

DriverVer=09/01/2009,61.091.13.01

DriverIsolation=2

NOTE Any change to the driver *.inf file breaks the WHQL signature, which results in a warning

during HP UPD installation. For this reason, HP recommends choosing HP UPD v5.1.1 or

higher for customers requiring isolation mode as the installation default.

Following installation, the PMC user interface will display “Shared” in the Driver Isolation column. In

addition, right-clicking on the UPD and selecting Set Driver Isolation will display “System Default

(Shared)” since the setting came from the *.inf at the time of installation.

What “DriverIsolation” settings are supported in the UPD *.inf file?

The HP UPD supports all settings of driver isolation defined by Microsoft.

DriverIsolation=0

A setting of 0 (disabled) means the DriverIsolation setting is missing from the *.inf (such as with a

legacy driver). The driver being installed will not operate in isolation mode. However, even if 0 is set,

or no entry is made, the driver can subsequently be put into isolation mode based on Microsoft group

policy settings.

DriverIsolation=2

When this setting is added to the HP UPD 5.0x driver, you will receive a WHQL error message at

installation: “Windows can’t verify publisher of this driver software”. and the HP UPD

will be installed in shared isolation mode.

Can Printbrm manage driver isolation mode?

The Printbrm tool allows you to export and migrate driver isolation settings. Printbrm was introduced

in Windows Vista and Windows Server 2008 as the replacement for the PrintMig utility.

How can I use Microsoft group policy to manage driver isolation mode?

Driver isolation mode can be managed by Microsoft group policy using one of two methods:

1. Navigate to Computer Configuration > Administrative Templates > Printers > Execute print drivers

in isolated processes. According to the operating system’s online help, “If you enable or do not

configure this policy setting, the print spooler will execute print drivers in an isolated process by

default. If you disable this policy setting, the print spooler will execute print drivers in the print

spooler process.”

te to Computer Configuration > Administrative Templates > Printers > Override print

driver execution compatibility setting reported by print driver. According to the operating system’s

online help, “This policy setting determines whether the print spooler will override the Driver

Isolation compatibility reported by the print driver. This enables executing print drivers in an

isolated process, even if the driver does not report compatibility. If you enable this policy setting,

the print spooler will ignore the Driver Isolation compatibility flag value reported by the print

driver. If you disable or do not configure this policy setting, the print spooler will use the Driver

Isolation compatibility flag value reported by the print driver.”

notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying

such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be

liable for technical or editorial errors or omissions contained herein.

March 2016