Mixing SATA and SAS on Same JBOD/Enclosure

[webdawg]

Hello,

As my memory serves you are not supposed to mix SATA and SAS in the same enclosure. Is this still true?

 

[jgreco]

Who told you that?

The main concern is if you have some problematic SAS expander that causes problems. Some of the first generation SAS1 expanders were known for being pretty crappy anytime anything unexpected happened. This includes errors teased out by noncompliant SATA implementations.

Generally speaking, anything manufactured within the last ten years for SAS2 or later *should* be fine. It's still a good idea to avoid mixing them unnecessarily, I suppose.

 

[webdawg]

It would have been from about 10 years ago, and most def SAS1.

 

[jgreco]

It would have been from about 10 years ago, and most def SAS1.

Yeah, then, don't do THAT. SAS2 and beyond is generally fine, although I'm sure some counterexamples may exist.

 

[webdawg]

What issues do you thing someone would have with the counterexample?