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What is the full form of AAM?

Full form of AAM: Here, we are going to learn what does AAM stands for? AAM – which is an abbreviation of "Automatic Acoustic Management" in Computer Acronyms/Abbreviations, etc.
Submitted by Anushree Goswami, on March 22, 2020

AAM: Automatic Acoustic Management

AAM is an abbreviation of "Automatic Acoustic Management".

It is a system of practice for diminishing acoustic emanations in AT Attachment (ATA) mass storage devices for computer data storage, such as ATA hard disk drives and ATAPI optical disc drives. AAM is a permissive attribute set for ATA/ATAPI devices; when a device supports AAM, the acoustic management frameworks are modifiable and adaptable through a software or firmware user interface.

Details

  • The ATA/ATAPI sub-command for establishing the standard of AAM operation is an 8-bit value from 0 to 255.
  • The majority of current drives ship with the seller-described value of 0x00 in the acoustic management establishment. This frequently decodes to the max-performance value of 254 declared in the standard.
  • Values between 128 and 254 (0x80 - 0xFE) allow the attribute and opt for or choose most-quiet to most-performance establishments along with that series. Nevertheless, hard drive manufacturers may sustain the entire series of values, the establishments are enabled to be banded; therefore a lot of values could make available the similar acoustic performance.
  • In the process of making available best acoustic performance, several drive manufacturers may restrict the highest seek velocity of the heads for AAM operation.
  • This debase performance by raising the standard seek time: several head movements are enforced to stay remain a supplementary disk rotation before accessing data for the reason that the head was not capable to shift to the objective position in the duration of the first rotation due to velocity restrictions.

History

  • INCITS, which was in earlier times known as NCITS, first processed by the implementation and development of technical standards of AAM in the ATA/ATAPI-6 specification.
  • AAM is no longer accessible for Seagate and Western Digital drives.
  • In 2008, Seagate took away or eliminated AAM abilities from all its drives for the reason that Convolve claimed that one of its patents, US Patent No. 6,314,473 covers up AAM technology.
  • In 2011, Western Digital started doing a similar act, devoid of making any official announcements, nor upgrading their product documentation.
  • In March 2012, the product specification sheets go on to allege that there is a variety of seeking methods or approaches on their drives. On the other hand, the hardware that is at the present manufactured does not enable control over AAM.

Reference: Automatic_acoustic_management






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