User:Rpeters: Difference between revisions
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== For General Users == |
== For General Users == |
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Advanced Format (AF) Hard Disk Drives are used in many pre-built computers and USB drives from about 2011 onwards.. By way of explanation |
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*AF drives have 4 kB hard sectors in lieu of |
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*the traditional 512 B sectors |
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==== Advantages ==== |
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*much faster (less disk overhead) |
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*more space efficient (larger disk capacity from same hardware) |
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*overcomes immutable capacity limit of ~2.1 TeraByte for conventional drives |
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==== Disadvantages ==== |
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*Windows 32 bit systems cannot boot from AF drives |
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**requires driver from HDD manufacturer, to use as data only internal drives |
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No action is required by the typical purchaser, because the manufacturer will have taken care of the special formatting required with AF drives. ''Getting Technical'' below, provides guidelines for those needing to: |
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*repartition drives |
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*install new, "bare" drives |
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* |
* |
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== Getting Technical == |
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== Getting Technical == |
== Getting Technical == |
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=== Advanced Format Drives === |
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| ⚫ | |||
�*performance loss of up to 40% if reformatted MBR. |
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New HDD from about 2011 onwards are likely to be Advance Formatted |
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*usually pre-formatted |
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*likely to be stated on drive or packaging |
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*essential for drives over 2.1 TeraByte capacity |
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*has been used on new drives as small as 250GB |
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==== Re-formatting ==== |
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Drives up to 2.1 TB,manufactured during the transitional period, logically divide each 4kB sector into eight 512 B sectors |
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*permits partitioning using legacy programs |
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*deprecated because doing so can decrease performance up to 40% |
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**essential for boot drives in Windows 32 bit systems |
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#re-formatting |
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| ⚫ | |||
(such drives have no |
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Revision as of 00:04, 1 September 2012
Templates
-Rpeters13:25, 24 August 2012 (EST) --
- def
- definition list
- def
- definition list
For General Users
Advanced Format (AF) Hard Disk Drives are used in many pre-built computers and USB drives from about 2011 onwards.. By way of explanation
- AF drives have 4 kB hard sectors in lieu of
- the traditional 512 B sectors
Advantages
- much faster (less disk overhead)
- more space efficient (larger disk capacity from same hardware)
- overcomes immutable capacity limit of ~2.1 TeraByte for conventional drives
Disadvantages
- Windows 32 bit systems cannot boot from AF drives
- requires driver from HDD manufacturer, to use as data only internal drives
No action is required by the typical purchaser, because the manufacturer will have taken care of the special formatting required with AF drives. Getting Technical below, provides guidelines for those needing to:
- repartition drives
- install new, "bare" drives
Getting Technical
Getting Technical
Advanced Format Drives
�*performance loss of up to 40% if reformatted MBR. New HDD from about 2011 onwards are likely to be Advance Formatted
- usually pre-formatted
- likely to be stated on drive or packaging
- essential for drives over 2.1 TeraByte capacity
- has been used on new drives as small as 250GB
Re-formatting
Drives up to 2.1 TB,manufactured during the transitional period, logically divide each 4kB sector into eight 512 B sectors
- permits partitioning using legacy programs
- deprecated because doing so can decrease performance up to 40%
- essential for boot drives in Windows 32 bit systems
#re-formatting
(such drives have no
