FreeBSD 2.2.6 + DPT SCSI Controllers

FreeBSD 2.2.6 + DPT SCSI Controllers

Post by Rex Diet » Tue, 07 Jul 1998 04:00:00




> it boils down to this: freebsd will never work properly with dpt
> controllers. you can hack it 'til you die; but you'll eventually choose
> one or the other. i chose dpt and fell back on old familiar linux. i've
> operated three servers (with non-dpt canisters/cables et cetera) for a
> year now with all of six* minutes downtime.

I'm sorry that I've gotten in this thread late, but I didn't see the  
original message, and this topic is of concern for me.

As per the comment at the page
http://www.veryComputer.com/~neuffer/scsi/dpt/freebsd.html
"The FreeBSD driver will soon be available
The version 3.0 of the EATA-DMA driver is currently under development."

I've e-mailed the author of this webpage a couple of times now without  
response yet regarding the "soon" to be available driver.  In our case, I  
will not fall-back to Linux, as I don't trust it as a production NFS  
server.  I DO trust FreeBSD, however, and would very much like to see high  
quality, high-performance DPT Caching/RAID SCSI controllers supported.

Anyone else care to comment?

--

Computer System Manager         http://www.veryComputer.com/~rdieter/
Mathematics and Statistics              
University of Nebraska-Lincoln

 
 
 

FreeBSD 2.2.6 + DPT SCSI Controllers

Post by Andre Opperman » Wed, 08 Jul 1998 04:00:00


-snip-

Quote:> I'm sorry that I've gotten in this thread late, but I didn't see the
> original message, and this topic is of concern for me.

> As per the comment at the page
> http://www.uni-mainz.de/~neuffer/scsi/dpt/freebsd.html
> "The FreeBSD driver will soon be available
> The version 3.0 of the EATA-DMA driver is currently under development."

Simon Shapiro is the author of the current DPT driver in FreeBSD, you

Quote:> I've e-mailed the author of this webpage a couple of times now without
> response yet regarding the "soon" to be available driver.  In our case, I
> will not fall-back to Linux, as I don't trust it as a production NFS
> server.  I DO trust FreeBSD, however, and would very much like to see high
> quality, high-performance DPT Caching/RAID SCSI controllers supported.

There are two (three) ways to do RAID:

1. With an RAID controller and FreeBSD drivers (eg. DPT)

2. With an SCSI RAID-Box, for FreeBSD it's simply a big HD (eg. Mylex)

3. With ccd (only really usable for striping == performace)

--
Andre Oppermann

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