#pragma ident	"@(#)large-disk-1pager.txt	1.1	08/01/30 SMI"

Template Version: @(#)onepager.txt 1.35 07/11/07 SMI
Copyright 2007 Sun Microsystems

1. Introduction
   1.1. Project/Component Working Name:

	Open Firmware GPT label support

   1.2. Name of Document Author/Supplier:

	Tayfun.Kocaoglu@sun.com

   1.3. Date of This Document:

	08/20/08
	
	1.3.1. Date this project was conceived:

		11/01/07

   1.4. Name of Major Document Customer(s)/Consumer(s):
	1.4.1. The PAC or CPT you expect to review your project:

		FW Consolidation PAC

	1.4.2. The ARC(s) you expect to review your project:

		FWARC

	1.4.3. The Director/VP who is "Sponsoring" this project:

		michael.sanfratello@sun.com

	1.4.4. The name of your business unit:

		System Firmware

   1.5. Email Aliases:
    	1.5.1. Responsible Manager:	david.banman@sun.com
    	1.5.2. Responsible Engineer:	tayfun.kocaoglu@sun.com
    	1.5.3. Marketing Manager:
	1.5.4. Interest List:

2. Project Summary
   2.1. Project Description:

	Add support to the disk-label package for the GPT label
	as defined by the UEFI specification.

   2.2. Risks and Assumptions:

	n/a

3. Business Summary

	Support new industry standard label formats for boot devices,
	especially for large disks.

   3.1. Problem Area:

	Augment the disk-label open and load methods to support booting
	from any partition number, while supporting the GPT label format.

   3.2. Market/Requester:

	Sun Microsystems, Inc.

   3.3. Business Justification:

	GPT label support is more flexible than the current sun label,
	which fails at 2TB.

   3.4. Competitive Analysis:

	n/a

   3.5. Opportunity Window/Exposure:

	Needed within the next few months.

   3.6. How will you know when you are done?:

	Support and boot from GPT labeled disks.

4. Technical Description:
    4.1. Details:

	See materials

    4.2. Bug/RFE Number(s):

	n/a
    
    4.3. In Scope:

	Supporting GPT label.

    4.4. Out of Scope:

    4.5. Interfaces:


	Imported Interfaces:

	Interface Name		Commitment Level	Comments
	==============		================	========

	"disk-label"		committed		OF package name
	"load"			committed		disk-label load method
	"open"			committed		disk-label open method


	Exported Interfaces:

	Interface Name		Commitment Level	Comments
	==============		================	========

	open arguments	 	committed		disk-label open args
							augmented by this case.

	show-partitions		committed		User interface word

	show-partitions		uncommitted		Output of
	output						show-partitions

	"gpt"			committed		property

	"efi-system-partition"	committed		property

	EFI System Partition	uncommitted		directory structure
	directory structure				defined by this case.

    4.6. Doc Impact:

	n/a
    
    4.7. Admin/Config Impact:

	n/a
    
    4.8. HA Impact:

	n/a
    
    4.9. I18N/L10N Impact:

	n/a
    
    4.10. Packaging & Delivery:

	Firmware is delivered via the sysfw consolidation.
    
    4.11. Security Impact:

	n/a
    
    4.12. Dependencies:

	none.

5. Reference Documents:

	[1] IEEE 1275-1994 Standard for Boot (Initialization, Configuration)
	    Firmware

	[2] OFWG Recommended Practice: size and #blocks (OFWG Proposal #248)
	    http://playground.sun.com/1275/practice/#size-blocks

6. Resources and Schedule:
   6.1. Projected Availability:

	Now.

   6.2. Cost of Effort:

	1 person, 2 months

   6.3. Cost of Capital Resources:

	Minimal (use existing hw raid cards, purchase some large disks
	and cables.)

   6.4. Product Approval Committee requested information:
   	6.4.1. Consolidation or Component Name: sysfw
	6.4.3. Type of CPT Review and Approval expected: RFE
        6.4.4. Project Boundary Conditions:
		n/a
	6.4.5. Is this a necessary project for OEM agreements:
		no.
	6.4.6. Notes:
		n/a
	6.4.7. Target RTI Date/Release:
	        Soon.
	6.4.8. Target Code Design Review Date: Soon.
	6.4.9. Update approval addition:
		n/a

   6.5. ARC review type: fastrack

   6.6. ARC Exposure: open

       6.6.1. Rationale: n/a

7. Prototype Availability:
   7.1. Prototype Availability:
		Now.

   7.2. Prototype Cost:
		Minimal