HP ProBook 6460b Preparing Advanced Format hard drives for Microsoft Windows i
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- HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 1
Preparing Advanced Format hard drives for Microsoft Windows installations on HP Business Notebook PCs and Desktop PCs Technical white paper Table of contents Executive summary...2 What does the Advanced Format drive mean to you 2 Important tips...4 Validating partition alignment ...5 Using DISKEXT - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 2
instructions for preparing an Advanced Format hard drive for a Microsoft® Windows® installation on an HP Business Notebook or Desktop PC. Historically, hard disk drives (HDDs) have used 512-byte sectors; however, this sector size to manufacture and able to support higher capacities. First-generation - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 3
. Note: If you are upgrading your PC to Windows Vista SP1 or later or Windows 7, no realignment is required since these OSs are Advanced Format-aware. B This scenario is not supported by HP. C For WinPE installations prior to 3.0, install Windows Automated Installation Kit (AIK). To optimize - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 4
Note: If you are downgrading your PC to Windows XP or Windows Vista, you are impacted since these supports most stripe-unit sizes, performance would be enhanced3 due to the elimination of redundant disk operations. Running the Paragon Partition Alignment Tool ensures support for the stripe-unit sizes - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 5
hotfix to your HP Business Notebook and Desktop PCs, as described in Enhancing the performance of small writes. Validating partition alignment This section outlines the following options for validating partition alignment: • Using the DISKEXT command-line utility (for Windows XP or later platforms - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 6
aligned. Using DISKPART 1. Boot the system via bootable Windows PE 3.0 RAM media. 2. Execute the DISKPART utility to display information about specific system partitions. For example, use the following script is to display information about Disk 0, Partition 1 (as shown in Figure 1): diskpart select - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 7
offsets associated with four partitions. All eight values must be divisible by 4,096. Table 3. Validating the alignment of four sample partitions Partition 0 Partition size 208,666,624 B Starting offset 1,048,576 B 208,666,624 ÷ 4,096 = 50,944 1,048,576 ÷ 4,096 = 256 1 732,388,392,960 B 209 - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 8
apply the hotfix: 1. Download the Windows PE hotfix to your c: drive from the Microsoft Support site at http://support.microsoft.com/hotfix/KBHotfix. as administrator. 6. At the prompt, expand the Windows PE image by mounting boot.wim to be updated into a location by entering the following: imagex. - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 9
Windows XP or Windows 2000 or a newer operating system. However, you must use Windows 7 or Windows disk boot device. The resources needed to update the environment would have been vast; for example, a BIOS update would be required for every system. Moreover, some operating systems do not support - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 10
Tool with a solid state drive (SSD)? Many modern SSDs feature an internal memory configuration that corresponds to 4-KB sectors. SSDs memory cells degrade over time, following a large number of write operations; thus, partitions by using the command-line switch -align=1MB when you start Ghost. 10 - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 11
size constrains storage capacity and has also caused manufacturing capabilities to reach a limit. Under the sponsorship and support of the International Disk with older operating systems such as Windows XP. This can be fixed by memory, modify both data sets, and then rewrite the new data to the - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 12
memory and only Windows XP disk drive. However, if logical writes are aligned to physical sectors and write lengths are in multiples of 4 KB, then new data can completely replace old data; the drive does not have to perform any extra steps for a write operation. Newer operating systems like Windows - HP ProBook 6460b | Preparing Advanced Format hard drives for Microsoft Windows i - Page 13
for Windows 7 download http://support.microsoft.com/kb/982018 http://technet.microsoft.com/enus/library/dd349343(WS.10).aspx http://www.microsoft.com/downloads/en/detai ls.aspx?FamilyID=696dd665-9f76-4177-a81139c26d3b3b34&displaylang=en Walkthrough: Create a Bootable Microsoft Windows PE RAM Disk
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Preparing Advanced Format hard drives
for Microsoft Windows installations on HP
Business Notebook PCs and Desktop PCs
Technical white paper
Table of contents
Executive summary
...............................................................................................................................
2
What does the Advanced Format drive mean to you?
..............................................................................
2
Important tips
...................................................................................................................................
4
Validating partition alignment
...............................................................................................................
5
Using DISKEXT
.................................................................................................................................
5
Using WMIC
...................................................................................................................................
6
Using DISKPART
...............................................................................................................................
6
Sample validation
............................................................................................................................
7
Enhancing the performance of small writes
.............................................................................................
8
Frequently asked questions
...................................................................................................................
9
Appendix A: Technical background
.....................................................................................................
11
Partition alignment
.........................................................................................................................
11
Why alignment helps
......................................................................................................................
12
For more information
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13