Q

SATA controllers

Storage expert Greg Schulz answers a reader's question: "Is a dual-channel SATA controller the same as a two-port SATA controller?"

What is a dual-channel SATA controller? Is it the same as a two- port SATA controller?
A SATA controller can have multiple physical ports for internal (no visible external ports on the card), external (you will see ports on the exterior edge of card) or both internal and external (you will see exterior ports and internal ports). The number and connector types of these ports will vary depending upon the types of connectors being used and if internal or external.

Also, the ports can support more than one channel. In fact, some SATA adapters and controllers support multiple...

logical channels, sometimes referred to as "lanes" over a cable connector such as the molex iPASS cabling system. So, when looking at SATA as well as SAS components, it's important to understand whether you are dealing with physical ports or logical ports, as well as whether they are internal or external.

This was first published in March 2007

Dig Deeper on Disk drives

PRO+

Content

Find more PRO+ content and other member only offers, here.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

SearchSolidStateStorage

  • Flash technologies remain hot in 2016, experts predict

    Experts predict solid-state technology will remain hot in 2016, leading to the demise of high-speed hard disk drives, as ...

  • Tintri VMstore T5000

    Like all of its VM-aware storage systems, Tintri’s first all-flash array -- the Tintri VMstore T5000 -- allows admins to bypass ...

  • SolidFire SF9605

    The high-capacity SolidFire SF9605 uses SolidFire’s Element OS 8 (Oxygen) to deliver new enterprise features such as synchronous ...

SearchVirtualStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

Close