cvs commit: src/sys/conf Makefile.sun4v files.sun4v options.sun4v src/sys/sun4v/compile .cvsignore src/sys/sun4v/conf DEFAULTS GENERIC GENERIC.hints MAC Makefile NOTES src/sys/sun4v/include _bus.h

[Doug Ambrisko]

Kip Macy writes:
| 
| The interface is not the same - can one buy an adapter?

True that technically the interface is not the same.  The SAS connector
spans the power supply and data port.  SATA has separate data and
power.  However, the mechanical spacing is the same except the SAS
drive does not have the gap to fit a separate power cable and separate
data cable.  I've stuck several SATA drives in a SAS backplane 
enclosure and Adaptec fan out cable.  The mechanical interface
precludes a SAS driver plugged into a SATA controller but the
converse is not true.

Do you have a SATA drive to try?  I've even mixed a SAS and SATA
drives on the same controller at the same time.  I know a few
people using SATA on a SAS controller since SAS drives are harder
to come by.

Now Dell doesn't recommend mixing types but I've done it to 
do some testing.

There is no adapter needed :-)

I wish there was a SCSI drive to SAS interface like PATA drive to
SATA.  Unfortunately my PATA adapter is not compliant and won't 
just work with a SAS cable :-(
 
| On Tue, 10 Oct 2006, Doug Ambrisko wrote:
| 
| > Ceri Davies writes:
| > | On Thu, Oct 05, 2006 at 07:29:24AM +0000, John Birrell wrote:
| > | > When self-hosting on local disk on the T2000 (with SATA drives) there is a
| > | > bug which causes a processor to go off into the weeds. To debug this, kmacy
| > | > needs someone to donate another SATA drive. Sun hasn't been responsive to
| > | > his request for one. 8-( Can anyone help with that?
| > |
| > | I didn't think that Sun provided SATA drives for the T2000, only SAS.
| > | Do you care about the distinction, or will any 2.5" SATA HDD do?
| >
| > FWIW, it's been my experience that pretty much any SATA drive will work
| > with a SAS controller but not the converse.  I've heard they should
| > be SATA II but I'm not sure about that.  All of the drives I've tried
| > have worked but I haven't gone through our complete set.  Since SATA
| > are easier and cheaper to get I'd go with them.
| >
| > Doug A.