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iSCSI Driver: Release Notes for Cisco iSCSI Driver for Microsoft Windows 2000, Driver Release 2.1.4

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Release Notes for Cisco iSCSI Driver Version 2.1.4 for Microsoft Windows 2000

Table Of Contents

Release Notes for Cisco iSCSI Driver Version 2.1.4 for Microsoft Windows 2000

Contents

Introduction

System Requirements

Operating System Requirements

SN 5400 Series System Software Requirements

Obtaining the iSCSI Driver and Updated SN 5400 Series System Software

Determining the iSCSI Driver Version

Upgrading to a New Version

Uninstalling iSCSI Driver Software

Caveats

Open Caveats

Resolved Caveats

Related Documentation

Release-Specific Documents

Hardware Documents

Software Documents

Service and Support

Software Configuration Tips on the Cisco TAC Home Page

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center


Release Notes for Cisco iSCSI Driver Version 2.1.4 for Microsoft Windows 2000


August 8, 2002


Note You can find the most current documentation on Cisco.com. This set of electronic documents may contain updates and modifications made after the hard-copy documents were printed.


These release notes support Cisco iSCSI Driver version 2.1.4 for Microsoft Windows 2000.

For a list of software caveats that apply to version 2.1.4, see the "Caveats" section. The caveats are updated for every maintenance version and are located on Cisco.com and the Documentation CD-ROM.

Contents

These Release Notes describe the following topics:

Introduction

System Requirements

Caveats

Related Documentation

Service and Support

Obtaining Documentation

Obtaining Technical Assistance

Introduction

The iSCSI Driver for Microsoft Windows 2000 provides an IP host with the ability to access storage through an IP network. The iSCSI driver uses iSCSI protocol to transport SCSI requests and responses over an IP network between the host and a Cisco SN 5400 Series system.

Architecturally, the iSCSI driver combines with the host TCP/IP stack, network drivers, and NICs to provide the same functions as a SCSI adapter driver with a host bus adapter (HBA).

The iSCSI driver provides a transport for SCSI requests and responses for storage devices; however, instead of providing a transport for directly attached devices, the driver transports the SCSI requests and responses between the IP host and a Cisco SN 5400 Series system via an IP network. The SN 5400 Series system, in turn, transports SCSI requests and responses between it and the storage devices attached to it.

Once the iSCSI driver is installed, the IP host will proceed with a discovery process for iSCSI storage devices as follows:


Step 1 The iSCSI driver requests available iSCSI targets from the SN 5400 Series system.

Step 2 The SN 5400 Series system sends available iSCSI target names to the IP host.

Step 3 The IP host logs into the iSCSI targets.

Step 4 The SN 5400 Series system accepts the IP host login and sends target identifiers.

Step 5 The IP host queries targets for device information.

Step 6 Targets respond with device information.

Step 7 The IP host creates a table of internal devices.


The iSCSI Driver for Microsoft Windows 2000 provides IP access to a maximum of eight remote SCSI targets, with each target capable of supporting 255 LUNs. Remote SCSI targets can be accessed through one or more SN 5400 Series systems up to a maximum of eight SN 5400 Series systems.


Note The iSCSI protocol is an IETF-defined protocol for IP storage (ips). For more information about the iSCSI protocol, refer to the IETF standards for IP storage at http://www.ietf.org.


System Requirements

This section describes the system requirements for version 2.1.4 and includes the following information:

Operating System Requirements

SN 5400 Series System Software Requirements

Obtaining the iSCSI Driver and Updated SN 5400 Series System Software

Determining the iSCSI Driver Version

Upgrading to a New Version

Uninstalling iSCSI Driver Software

Operating System Requirements

The iSCSI Driver for Microsoft Windows 2000 requires Microsoft Windows 2000 Professional or Server with service pack 2 or later. If service pack 2 is installed, the following hotfixes are required:

Microsoft hotfix Q302895 or Q248720 (Q248720 is preferred because the fix includes a performance enhancement)

Microsoft hotfix Q318271

These fixes do not appear on the Microsoft hotfix website; you must specifically request them. These fixes will eventually be bundled into Microsoft Windows 2000 service pack 3.


Note If you are running Microsoft Windows 2000 Professional or Server with service pack 1, you must upgrade to service pack 2 and apply either Microsoft hotfix Q302895 or Q248720, and Microsoft hotfix Q318271.


To obtain the hotfixes, call Microsoft customer support at 1-800-936-4900 (or any Microsoft customer support phone number) and request the hotfix for Knowledge Base (KB) article Q302895 or Q248720, and article Q318271. You will be asked to supply an e-mail address. You will receive an e-mail message with a link to an FTP site where you can download the hotfixes. The e-mail message will also contain a password that you will be prompted to enter when you open the hotfix files.

For additional information about the hotfixes, access the Microsoft website at http://www.microsoft.com and follow the support link to view KB article Q302895, Q248720 and Q318271.

If the iSCSI Driver for Microsoft Windows 2000 is running on a Microsoft Windows 2000 Advanced Server Cluster node, Microsoft hotfix Q307939 is required. This fix does not appear on the Microsoft hotfix website; you must specifically request it.

To obtain the hotfix, call Microsoft customer support at 1-800-936-4900 (or any Microsoft customer support phone number) and request the hotfix for KB article Q307939. You will be asked to supply an e-mail address. You will receive an e-mail message with a link to an FTP site where you can download the hotfix. The e-mail message will also contain a password that you will be prompted to enter when you open the hotfix files.

For additional information about the hotfix, access the Microsoft website at http://www.microsoft.com and follow the support link to view KB article Q307939.

The iSCSI Driver for Microsoft Windows 2000 supports both single and multiple processor machines.

To ensure the best performance for iSCSI drivers, the extended windowing feature of TCP should be enabled on all IP hosts connecting to the SN 5400 Series system. In general, a larger window size enhances SN 5400 Series system performance.

The receive and transmit flow control feature of the Gigabit Ethernet driver should be enabled on all IP hosts connecting to the SN 5400 Series system.

If you are using a 3Com Gigabit Ethernet Server network interface card in the IP host, the minimum supported revision level is "B" (3C985B-SX). Using a card with a lower revision level will significantly decrease performance.

SN 5400 Series System Software Requirements

The iSCSI Driver version 2.1.4 for Microsoft Windows 2000 can connect to a Cisco SN 5400 Series system running software release 2.1.1 or later; this driver cannot connect to a Cisco SN 5420 Storage Router running software release 1.1.x.

Obtaining the iSCSI Driver and Updated SN 5400 Series System Software

From time to time, Cisco releases updated versions of SN 5400 Series system software and iSCSI drivers. Updated versions of SN 5400 Series system software and the Cisco iSCSI drivers, accompanying readme files, release notes and example configuration files are available for download.

You must be a registered Cisco.com user to download Cisco SN 5400 Series system software and iSCSI drivers.

You can access software by following these instructions:


Step 1 At http://www.cisco.com, log in to Cisco.com. Under Service & Support, click Software Center.

Step 2 At the Software Center web page, under Software Products & Downloads, click Storage Networking Software.

Step 3 At the Storage Networking Software web page, click the appropriate link for your software.

Step 4 At the Software Download web page, click the link for the software that you want to download. Clicking the link will cause another web page to be displayed. Follow the instructions on that and any subsequent web pages to download the software.

Step 5 To install and configure storage router software, see the appropriate storage router software configuration guide and release notes. To install and configure an iSCSI driver, see the readme file that accompanies the iSCSI driver (in the downloaded driver archive file) and the appropriate release notes.


Determining the iSCSI Driver Version

To determine the version of the iSCSI driver software installed on the IP host, open Control Panel and double-click the iSCSI Config icon. The lower left corner of the dialog box shows the version number of the iSCSI Config program and the title bar shows the operating system it is intended for. Click Status to show the version information of the iSCSI driver on the top line.

You can also verify version information by checking the file versions of these files:

iscsi.sys

iscsicfg.cpl

Follow these steps:


Step 1 Use Windows Explorer to navigate to the c:\winnt\system32\drivers directory.

Step 2 Right-click the file iscsi.sys and then click Properties from the shortcut menu. The Properties dialog box displays.

Step 3 Click the Version tab, and check the File version.

Step 4 Navigate to the c:\winnt\system32\ directory.

Step 5 Right-click the file iscsicfg.cpl and then click Properties from the shortcut menu. The Properties dialog box displays.

Step 6 Click the Version tab, and check the File version. The file version information should be the same in both files.


Upgrading to a New Version

To upgrade to a new version of iSCSI driver software, follow these instructions:


Step 1 Log on to the IP host as a user with Administrator privileges.

Step 2 Run the setup.exe executable for the new iSCSI driver to start the installation program.

Step 3 Follow the on-screen instructions to upgrade the iSCSI driver software.


Uninstalling iSCSI Driver Software

To uninstall iSCSI driver software, follow these instructions:


Step 1 Log on to the IP host as a user with Administrator privileges.

Step 2 Run the setup.exe executable for the currently installed iSCSI driver to start the installation program.

Step 3 Follow the on-screen instructions to remove the iSCSI driver software.


Caveats

Caveats describe unexpected behavior or defects in iSCSI software versions. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.

The "Open Caveats" section describes open severity 1 and 2 caveats that apply to the current version and may apply to previous versions.

The "Resolved Caveats" section describes severity 1 and 2 caveats resolved in this version, but open in previous versions.

Within the sections, the caveats are sorted alphanumerically by caveat number.


Note If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity for any version. You can reach Bug Navigator II on Cisco.com at Service & Support: http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl.


Open Caveats

There are no severity 1 or 2 caveats open against the iSCSI driver version 2.1.4. For a more complete list of caveats against this release, access Cisco.com as described in the section "Cisco.com" at the end of this document.

Resolved Caveats

All of the caveats listed in this section are resolved in the iSCSI driver version 2.1.4 for Microsoft Windows 2000.

CSCdx93703

When running LSI E2400 Array firmware and the Microsoft Windows 2000 LSI RDAC driver, the SN 5400 Series system shows all host target connections present, but the host does not present the LSI logical disks to the user. The Microsoft Windows 2000 disk manager shows only one of two expected LSI E2400 Array devices.

Workaround: None. This problem has been resolved in iSCSI driver version 2.1.4.

Related Documentation

The following sections describe the related documentation available for the iSCSI Driver version 2.1.4 for Microsoft Windows 2000 and the Cisco SN 5400 Series systems. These documents consist of the iSCSI driver release notes, readme and example configuration files, and the SN 5400 Series system hardware installation and software configuration guides.

The SN 5400 Series system hardware installation and software configuration documentation sets are available as printed manuals or electronic documents. The iSCSI driver readme file and example configuration file are available in electronic format, as part of the software download package. See the "Obtaining the iSCSI Driver and Updated SN 5400 Series System Software" section for details.

Release-Specific Documents

This Release Notes document is the only document specific to iSCSI Driver version 2.1.4 for Microsoft Windows 2000. It is located on Cisco.com and the Documentation CD-ROM.

Each release of SN 5400 Series system software includes an associated Release Notes document, which is also available as an electronic document on Cisco.com and the Documentation CD-ROM.

Hardware Documents

Refer to the appropriate SN 5400 Series system hardware installation guide for hardware installation procedures. The Cisco SN 5420 Storage Router Hardware Installation Guide provides hardware installation procedures for SN 5420 Storage Routers. The Cisco SN 5428 Storage Router Hardware Installation Guide provides hardware installation procedures for SN 5428 Storage Routers. These documents are available as printed manuals. They are also available as electronic documents on Cisco.com and the Documentation CD-ROM

Software Documents

Refer to the appropriate SN 5400 Series system software configuration guide for software configuration information. The Cisco SN 5420 Storage Router Software Configuration Guide Release 2.1 provides configuration information for SN 5420 Storage Routers. The Cisco SN 5428 Storage Router Software Configuration Guide Release 2.2 (or later) provides configuration information for SN 5428 Storage Routers. These documents are available as printed manuals. They are also available as electronic documents on Cisco.com and the Documentation CD-ROM.

For documentation on the SN 5400 Series system web-based GUI, refer to the SN 5400 Series system web-based GUI online Help system.

Service and Support

For service and support for a product purchased from a reseller, contact the reseller, who offers a wide variety of Cisco service and support programs described in "Service and Support" of Cisco Information Packet shipped with your product.


Note If you purchased your product from a reseller, you can access Cisco.com as a guest. Cisco.com is Cisco Systems' primary real-time support channel. Your reseller offers programs that include direct access to Cisco.com services.


For service and support for a product purchased directly from Cisco, use Cisco.com.

Software Configuration Tips on the Cisco TAC Home Page

A variety of Cisco SN 5400 Series system software and iSCSI driver installation, configuration and usage tips are available on the Cisco Technical Assistance Center (TAC) Web Site.

For example, you can access Cisco SN 5420 "tech tips" by following these instructions:


Step 1 At http://www.cisco.com (or http://www.cisco.com/login/cisco/, if you are a registered Cisco.com user and logged in), under Products & Technologies, select Routers from the drop-down list.

Step 2 At the Cisco Routers web page, under Cisco SN 5400 Series Storage Routers, click the SN 5420 Product Support link.

Step 3 At the Cisco SN 5420 Storage Router Product Support web page, click the appropriate links for additional information about installing and configuring SN 5400 Series system software and iSCSI drivers.


Obtaining Documentation

These sections explain how to obtain documentation from Cisco Systems.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at this URL:

http://www.cisco.com

Translated documentation is available at this URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.

Ordering Documentation

You can order Cisco documentation in these ways:

Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:

http://www.cisco.com/cgi-bin/order/order_root.pl

Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:

http://www.cisco.com/go/subscription

Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

You can submit comments electronically on Cisco.com. In the Cisco Documentation home page, click the Fax or Email option in the "Leave Feedback" section at the bottom of the page.

You can e-mail your comments to bug-doc@cisco.com.

You can submit your comments by mail by using the response card behind the front cover of your document or by writing to the following address:

Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.

Cisco.com

Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you with these tasks:

Streamline business processes and improve productivity

Resolve technical issues with online support

Download and test software packages

Order Cisco learning materials and merchandise

Register for online skill assessment, training, and certification programs

If you want to obtain customized information and service, you can self-register on Cisco.com. To access Cisco.com, go to this URL:

http://www.cisco.com

Technical Assistance Center

The Cisco Technical Assistance Center (TAC) is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

Cisco TAC inquiries are categorized according to the urgency of the issue:

Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.

Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

The Cisco TAC resource that you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

You can use the Cisco TAC Web Site to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to this URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:

http://www.cisco.com/register/

If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC Web Site, you can open a case online by using the TAC Case Open tool at this URL:

http://www.cisco.com/tac/caseopen

If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC Web Site.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.