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SATA I-O unveils specifications for SATA 3.2

Ultimately, faster SATA storage will require faster ports and that’s what Serial ATA International Organization (SATA-IO) just did when they revealed the specification of SATA 3.2 rev. The newer SATA Express uses PCIe, therefore you are getting pure bandwidth access of PCIe.

There will be no SATA link or Transport layer, rather uses the PCIe PHY, Link and Transport that assures that the SATA devices gets full PCIe advantage. The newer revision comes with better managements and optimizations for sold state hybrid drives (SSHDs) and solid state drives (SSDs), along with allowing smaller storage form factors for SATA storage drives and even enabling co-existence between SATA and PCIe based storage devices.

The other features that SATA 3.2 will have are as follows:

  • MicroSSD:  Standard for embedded solid state drives (SSDs) that enables developers to produce single-chip SATA implementations for embedded storage applications.
  • Universal Storage Module (USM):  Enables removable and expandable storage for consumer electronic devices. SATA revision 3.2 introduces USM Slim, which reduces module thickness, allowing smaller removable storage solutions.
  • DevSleep: The lowest yet level of power management where the drive is almost completely shut down, to meet the requirements of new always on, always connected mobile devices such as Ultrabooks™.
  • Transitional Energy Reporting:  Provides the host with detailed information about the SATA storage device, facilitating better power management.
  • Hybrid Information:  Provides a mechanism in which the host can communicate data caching information to the drive, improving solid state hybrid drive (SSHD) performance.
  • Rebuild Assist:  Speeds the data reconstruction process in RAID configurations.

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Dev Sleep is what helps in efficiency, as it almost shuts down the storage drive to keep the power consumption as low as possible but allows to be turn on completely once its back from its sleep mode. SATA 3.2 also has M.2 form factor for tablets and notebooks and Universal Storage Module which will allow expandable and removable storage devices for ultrabooks.

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