SUMMARY: LVD/HVD/SE prob - connecting a compaq MSL5026 to a E420R

Thanks to 
anderson_baptist.sspam@uol.com.br
Paul Richards <p.richards@ukonline.co.uk>
James Noyes <jnoyes-sml@retrogeeks.com>
Grzegorz Bakalarski <G.Bakalarski@icm.edu.pl>
Scott Mickey <mickey@denver.net>
Paul Boven <p.boven@chello.nl>
levins@westnet.com
Jay Lessert <jayl@accelerant.net>
Darren Dunham <ddunham@taos.com>
Eric Trager <Eric.Trager@nih.gov>
"Eugene Schmidt" <fereug@acute.co.za>
mcclark@daewerk.net
mickey@denver.net

Every point said the scsi card in the E420R was HVD and that I need a LVD
card or SE card. This is pretty much what I had deduced but a call to sun
support told me the card would do both, they had a recent explorer output,
- Ill stick with the info from the list. Scott Mickey's reply contains some
useful links so I include here

on Fri, Jun 27, 2003 at 03:07:52AM -0600, Scott Mickey <mickey@denver.net>
wrote:
>Your problem is a HVD (High Voltage Diff) controller will not  
>work with a LVD (Low Voltage Diff) device.  You need to purchase
>one of these:
>             
>Option 6540  (older)
>http://sunsolve.sun.com/handbook_pub/Devices/SCSI/SCSI_Dual_UltraSCSI_PCI.html
>or
>Option 6758  (newer, faster)
>http://sunsolve.sun.com/handbook_pub/Devices/SCSI/SCSI_Dual_Ultra3_PCI.html
>
>You likely have an Option X6541A installed for the A1000. 
>http://sunsolve.sun.com/handbook_pub/Devices/SCSI/SCSI_Diff_UltraSCSI_PCI.html
>
>Check out the bottom of this web page for the SCSI symbols:
>http://scsifaq.paralan.com/scsifaqanswers4.html
>
>Here are a couple of emails from someone with a similar
>problem (you are certainly not the first one):
>http://www.sunmanagers.org./pipermail/sunmanagers/2003-May/022288.html  
>http://www.sunmanagers.org./pipermail/sunmanagers/2003-May/022310.html 
>
>Many LVD devices can operate in SE mode.  This means if you plug 
>the SCSI cable into the built-in SCSI connector on the back side
>of your E420R (the connector next to the keybd/mouse connector),
>you may get a response using probe-scsi-all.  You said the Compaq
>manual specified that a wide LVD controller is required, but you
>may want to ignore the manual for a moment and give it a try.
>It may allow you to get minimally operational right away.  -At least
>until you can get a HVD controller in-hand.

Thanks to all

BB


on Fri, Jun 27, 2003 at 04:37:54PM +1000, Broun, Bevan <brounb@adi-limited.com> wrote:
> Im having some trouble connecting a compaq MSL5026 tape library to a Sun
> E420R. I cant get probe-scsi-all to show the device(s). I have read the
> following summary, and the links it contains, I have found useful but Im
> still confused.
> http://www.sunmanagers.org/pipermail/summaries/2002-February/002463.html
> http://www.sunmanagers.org/pipermail/summaries/2001-February/000235.html
> 
> Here's the setup 
> Sun E420R with Solaris 8. There is a PCI differential scsi card in the
> machine, provided by sun with initial setup. The most info I have on this
> card is "Dual channel differential Ultra wide scsi card" by symbios. I have
> used this card to connect A1000 disk array and L9 tape library - all
> detected, no problem.
> 
> Now I get rid of the A1000 and L9 and attach the MSL5026. Cabling is all
> correct, as are scsi IDs. the manual for the 5026 says "to connect the
> library to a host you must have at least one wide LVD controller and
> appropriate driver software". The driver will be comming from veritas NBU.
> 
> I can not get the 5026 to show up via "probe-scsi-all". Ive tried many
> things. Is this a ultra v ultra2 scsi problem?
> 
> Thanks in advance
> 
> BB
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