16 Facts About SATA 30

1.

Serial ATA spec requires SATA 30 devices be capable of hot plugging; that is, devices that meet the specification are capable of insertion or removal of a device into or from a backplane connector that has power on.

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2.

In general, SATA 30 devices fulfill the device-side hot-plugging requirements, and most SATA 30 host adapters support this function.

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3.

Windows device drivers that are labeled as SATA 30 are often running in IDE emulation mode unless they explicitly state that they are AHCI mode, in RAID mode, or a mode provided by a proprietary driver and command set that allowed access to SATA 30's advanced features before AHCI became popular.

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4.

Special eSATA 30 connector is specified for external devices, and an optionally implemented provision for clips to hold internal connectors firmly in place.

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5.

Female SATA 30 ports are for use with SATA 30 data cables that have locks or clips to prevent accidental unplugging.

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6.

Some SATA 30 cables have right- or left-angled connectors to ease connection to circuit boards.

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7.

SATA 30 specifies a different power connector than the four-pin Molex connector used on Parallel ATA devices .

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8.

Some early SATA 30 drives included the four-pin Molex power connector together with the new fifteen-pin connector, but most SATA 30 drives now have only the latter.

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9.

Standardized in 2004, eSATA 30 provides a variant of SATA 30 meant for external connectivity.

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10.

Physical dimensions of the mSATA 30 connector are identical to those of the PCI Express Mini Card interface, but the interfaces are electrically incompatible; the data signals need a connection to the SATA 30 host controller instead of the PCI Express host controller.

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11.

SATA 30 specification defines three distinct protocol layers: physical, link, and transport.

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12.

Generally, the actual SATA 30 signalling is half-duplex, meaning that it can only read or write data at any one time.

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13.

SATA 30 defines multipliers, which allows a single SATA 30 controller port to drive up to fifteen storage devices.

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14.

Many motherboards offer a "Legacy Mode" option, which makes SATA 30 drives appear to the OS like PATA drives on a standard controller.

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15.

SCSI buses allow connection of several drives on one shared channel, whereas SATA 30 allows one drive per channel, unless using a port multiplier.

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16.

Inexpensive ATA and SATA 30 drives evolved in the home-computer market, hence there is a view that they are less reliable.

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