SATA and SCSI compatibility
I have been informed by Dell tech support that SCSI and parallel ATA hard disk drives are not compatible and can not be combined on the same bus. Does this also apply for SATA and SCSI? I currently have two SCSI hard disk drives and want to add a SATA card and hard disk. Will I encounter problems?

    Requires Free Membership to View

    Login

    When you register for SearchStorage.com, you’ll also receive targeted emails from my team of award-winning editorial writers. Our goal is to keep you informed on the hottest topics, the latest news and the biggest challenges you face as a storage professional today.

    Rich Castagna, Editorial Director

    By submitting your registration information to SearchStorage.com you agree to receive email communications from TechTarget and TechTarget partners. We encourage you to read our Privacy Policy which contains important disclosures about how we collect and use your registration and other information. If you reside outside of the United States, by submitting this registration information you consent to having your personal data transferred to and processed in the United States. Your use of SearchStorage.com is governed by our Terms of Use. You may contact us at webmaster@TechTarget.com.

The folks at Dell are giving you the correct answer. SCSI drives use a different logical and physical interface than parallel ATA, SATA and IDE drives, and cannot be used on the same "bus".

That does not preclude you from adding a SATA controller in your server, and adding your SATA disks to that controller. You should be able to have a number of different types of controllers and disks within a single server, such as internal SCSI boot disks and either an internal or external SATA shelf.

As long as the correct controller type is used with the same drive type, you should be fine. SCSI to SCSI, SATA to SATA, parallel ATA to parallel ATA.

This was first published in January 2006