Ezine

This article can also be found in the Premium Editorial Download "Storage magazine: Optimizing your enterprise database storage."

Download it now to read this article plus other related content.

Direct Memory Access:
Direct Memory Access, or DMA, is a command set typically associated with the ATA/IDE disk drives that transfers data between a hard disk drive through the computer's bus, and on to main memory. It provides better performance than its predecessor, Programmed Input/Output, or PIO, since it can request data from multiple sectors without a handshake, explains Marc Noblitt, manager of I/O planning at Seagate. Current ATA disk drives typically ship with UltraDMA, which today provide burst data transfer rates of up to 100MB/s.

Requires Free Membership to View

This was first published in November 2002

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: