SCIENTIFIC-LINUX-USERS Archives

November 2013

SCIENTIFIC-LINUX-USERS@LISTSERV.FNAL.GOV

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Vladimir Mosgalin <[log in to unmask]>
Reply To:
Vladimir Mosgalin <[log in to unmask]>
Date:
Fri, 8 Nov 2013 07:02:40 +0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (37 lines)
Hi Brent L. Bates!

 On 2013.11.07 at 15:22:47 -0500, Brent L. Bates wrote next:

>      Has anyone here heard of a converter that would allow one to
> connect an Ultra320 SCSI device to a SAS port on a computer?  We have
> some legacy hardware that we would like to connect to some new
> computers.  The new computers do not support an Ultra320 SCSI card,
> otherwise we would go that route.  I've done extensive Googling and
> even called up a couple of companies with no luck.  All I've found are
> posts from people looking for the same thing.  Any help would be
> greatly appreciated.  Thanks.

There seem to be converter devices in other direction (for connecting
modern SAS/SATA device into old parallel SCSI system):
http://www.mountainsecuresystems.com/fibre_channel_scsi_conversion.html
Considering their usage patterns, must be pretty expensive stuff.

Converters in direction that you need are probably possible but might be
really complicated so maybe no one makes them because resulting cost
will be comparable or greater than the cost of SCSI HBA. SCSI and SAS
are so different that architecture of such converter would be "real
full-scale SCSI HBA + emulated SAS device + conversion layer", with
corresponding cost.

Have you considered just buying (maybe from ebay) PCI-E SCSI HBA? I'm
pretty sure it's possible to buy all other required accessories like hot
plug trays or SCA-to-68 converters. Linux should have all drivers and
support nearly any SCSI HBA out of box.

I mean, you probably considered it, but have you thought that it might
be way cheaper solution than real converter, even if they do exist?..

-- 

Vladimir

ATOM RSS1 RSS2