
Compaq Computer Corporation
StorageWorks
Copyright (c) 2000-2001     
                       
02/02/2001


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Welcome to the Compaq StorageWorks Large LUN Utility for Microsoft
Windows for use with ACS8.5  EBS support included.

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These notes will help you understand how to install the Large LUN Utility for Windows.  Please refer to EBS documentation for support details.

The Compaq StorageWorks Large LUN Utility will allow the Windows NT/2000 host access to more than 8 LUNs per target (Maximum 64 LUNs if SecurePath 3.1 Software is used in conjunction).

Requirements:
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Minimum KGPSA driver version 4-4.41a7 and 5-4.41a7,  it is recommended to use the latest drivers avaliable.
For Windows NT 4.0 Service Pack 6a must be installed.
Software Update 1 or higher for SecurePath 3.1 installations .

Installation:
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1. Run Setup.exe to start utility installation.
2. Follow instructions presented by the utility 
3. Reboot host system

Notes:
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-The Large LUN Utility will install any needed registry settings for Windows NT or Windows 2000.
 
-It is recommended that the HSGx0 controllers be configured in SCSI-3 mode for maximum availability.

-If Secure Path software is installed at a later date, the utility will need to be reinstalled.

-If installing on a non configured host, run this utility last. 
  Ex. Fibre Channel Software Setup,
        Secure Path,
        LargeLUN Utility.




 Known Limitations:
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 Y=functional                               
                                                                                                       
 N=not funtional                               NT 4.0  | 2000          
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   SCSI-2  CCL is disabled	                               
	LUN 0 present                              Y   |   Y
	LUN 0 NOT present                          N   |   N
--------------------------------------------------------------------------------
   SCSI-3  CCL is enabled                                                          
        LUN 0 always present                       Y   |   Y     
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****In Windows2000, if any LUN greater than 7 is removed and a subsequent rescan is performed, the "Found New Hardware" wizard may ask you to finish the installation of the device that was removed, and the Device Manager may show the device with a yellow warning icon on it.  A reboot of the system will completely remove the device.****

Uninstall procedure:
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1. Go to Start=>Settings=>Control Panel =>Add/Remove Programs
2. Select Large LUN Utility
3. Click Add/Remove
4. Choose Remove from Maintenance screen

For ACS limitations see the HSG80/HSG60 Array Controller ACS8.5 Configuration Guide for rules.
