ADSM-L

Re: Windows drive addressing question...

2004-07-22 11:33:44
Subject: Re: Windows drive addressing question...
From: "Bos, Karel" <Karel.Bos AT ATOSORIGIN DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 22 Jul 2004 17:33:26 +0200
Wanda,

mt 0.0.0.x = Target ID 0, Lun 0, Bus 0. The X is auto assigned by Windows based 
on the time of first detection. At least, this is how I resolved it by looking 
at the LB.x.x.x. info.

Regards,

Karel

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Prather, Wanda
Sent: donderdag 22 juli 2004 17:17
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Windows drive addressing question...


A question for you Windows heavies out there.

I have a Windows TSM server with a very simple tape configuration.

In the Windows host there are 3 fibre HBA's.  Each one is connected by a
fibre cable to one of three 3590 tape drives in a 3494 library. NO switches
involved, just a fibre cable direct from each HBA to its tape drive.

(The 3494 library itself communicates via Ethernet, so it isn't involved in
this addressing question.)

I set the drives up using the TSM Device Configuration Wizard and everything
works great.  I just don't understand how the Device Configuration wizard
works.

- If I go to My Computer -> Manage -> Device Manager and look under SCSI &
RAID CONTROLLERS, I see 3 entres for

"IBM Netfinity QLA220 PCI Fibre Channel Adapter", which is what I expect to
see.  If I look at the properties for the 3 adapters, I see

Location 5 (PCI bus 2, device 5, function 0)
Location 2 (PCI bus 5, device 2, function 0)
Location 3 (PCI bus 5, device 3, function 0)

If I look in Device Manager under Tape Drives, I see 3 entries for
"IBM 03590E1A SCSI Sequential Device", which seems reasonable.  If I look at
the properties for the 3 tapes drives, what I see is a bit confusing:

Bus 0, Target ID 0, Lun 0
Bus 0, Target ID 0, Lun 0
Bus 0, Target ID 0, Lun 0


And the TSM Device Configuration Wizard sees the tape drives as

mt0.0.0.5
mt0.0.0.6
mt0.0.0.7

Can somebody explain to me:

1) how do these 3 sets of addresses relate to each other?

2) how does the TSM Device Configuration wizard come up with the names
mt0.0.0.5 , mt0.0.0.6, mt0.0.0.7?


Any help in reducing the confusion is much appreciated!

Wanda

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