"Nut Cracker" wrote in message
...

"Heimo Hetl" wrote in message
...
I have a brand new DL380 G5 with both SATA (factory fit) and SAS
(add-on) controllers. The drive backplane is connected to the controller
with two data cables. How is it wired internally? Can I mix SAS and SATA
on the same backplane, connecting the left part of the backplane to the
SAS and the right part to the SATA controller?

If not: what is the purpose of the two data cables? They can't actually
run into the same bus on the backplane, can they?

cheers
Heimo

--
You never ask questions when God's on your side.

Each drive runs on its own channel, so there is no split backplane per-se.
You should be able to mix SATA and SAS drives in the same chassis, but why
would you want to? SATA drives have a 50% duty cycle, and are warrantied
for only a year. There is no good reason to use SATA in any realtime
production capacity, plus it appears that there is a lack of managability
with them.

SATA is also limited to 1.5Gb/s while the SAS drives are rated for
3.0Gb/s. They also outperform U320 by an appreciable margin.

- LC

One more thing ... If for some unimaginable reason you chose to run both
SAS and SATA disks in the server, at the same time ... you must use a SAS
controller. SAS can host SAS and SATA drives ... a SATA controller can only
host SATA.

The DL380G5 comes with a P400 (PCIe SAS), no SATA controllers for this
machine.

- LC