Martin: SCSI, SATA Express protocols emerging for solid-state storage

Martin: SCSI, SATA Express protocols emerging for solid-state storage

Date: Dec 20, 2013

SCSI Express is a new interface for solid-state storage that promises the use of the SCSI protocol on the PCIe bus. In this Storage Decisions presentation, Dennis Martin, president of Demartek LLC, explains some of the background of this interface.

"SCSI Express is basically SAS, but for PCI Express," said Martin. "You're carrying the SCSI protocol, all the commands work the same, it's just that you're carrying it over PCI Express rather than a SAS cable."

Martin said this interface is a result of the rise of SSDs and the need for greater bandwidth to take advantage of the technology. According to the Storage Networking Industry Association, SCSI Express' use of two common technologies allows performance gains while "maintaining enterprise experience."

Martin noted that "you're talking gigabytes per second through this interface rather than gigabits per second like you can [get] from SAS."

Martin said SATA Express is a similar concept, and that hard drives don't need this interface speed, but solid state can make use of it. "Not to be outdone, the SATA guys said 'we got a new one, too.' So there's a new one called, 'SATA Express,'" said Martin. "Same idea -- you're going to take the SATA protocol, and run it over a PCIe Express transport."

More on Server-based SSD implementations

There are Comments. Add yours.

TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

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: