I'd only switch if you are having problems with your current driver, or find a
feature in the new driver that you really want. That's just my 2c.
tl
-----Original Message-----
From: Hutchison, Jay A [mailto:Jay.Hutchison AT va DOT gov]
Sent: Friday, September 07, 2007 3:18 PM
To: EMC NetWorker discussion; Lemons, Terry
Subject: RE: [Networker] Windows2003 R2 change tape order at boot
Question 2? We have 5 IBM Ultrium III drives in an ADIC Scalar i500 installed
on the neworker server and all 10 storage nodes. They all use a Dell driver
(ver. 6.0.6.83)should we switch to the IBM driver?
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of Terry Lemons
Sent: Friday, September 07, 2007 3:03 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Windows2003 R2 change tape order at boot
Hi Jay
The change to the registry needs to be made on the system on which you install
the tape drivers, which is the system that has the tape drives, which is the
storage node.
Jay's question reminded me of two problems you may have when working with the
IBM tape driver:
1. IBM made an, er, unfortunate default setting in the IBM tape driver:
support for data path failover and control path failover is ENABLED by default.
BUT, if you don't have the license for these features installed, the driver
just won't work. So, make sure you use the .reg files provided with the
driver to disable the CPF and DPF feature before you try to use the driver
2. Unlike every other driver I've used on Windows, the IBM tape driver CAN NOT
be installed with the usual Device Manager method. It MUST be installed using
the install.exe program that comes with the driver kit.
FYI
tl
Terry Lemons
Backup Platforms Group
EMC²
where information lives
4400 Computer Drive, MS D239
Westboro MA 01580
Phone: 508 898 7312
Email: Lemons_Terry AT emc DOT com
-----Original Message-----
From: Hutchison, Jay A [mailto:Jay.Hutchison AT va DOT gov]
Sent: Friday, September 07, 2007 2:50 PM
To: EMC NetWorker discussion; Lemons, Terry
Subject: RE: [Networker] Windows2003 R2 change tape order at boot
Terry does the change to the registry need to be done on the clients as well as
the networker server?
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of Terry Lemons
Sent: Thursday, September 06, 2007 4:32 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Windows2003 R2 change tape order at boot
Hi Pierpa
I replied to your question (below) in a reply to another list posting. But, I
wanted to comment on something you mentioned, below:
"This tapes are connected through the SAN to a Qlogic FC board on my server on
two different ports."
So, does your Windows 2003 R2 system see the same tape library twice: one time
each on two different FC HBA ports?
If so, that sounds like a problem, in that multi-pathing for tape devices is
very, very rare.
That said, the IBM Ultrium tape driver does support multi-pathing for both the
control path (to the autochanger device) and to the data path (to the tape
drive). This is a licensed feature, and you need to pay IBM for the right to
do this. This is described in
ftp://ftp.software.ibm.com/storage/devdrvr/Doc/IBM_Tape_Driver_IUG.pdf for the
operating systems that support it. Look for references to 'Control Path
Failover' and 'Data Path Failover'.
Hope this helps.
tl
Terry Lemons
Backup Platforms Group
EMC²
where information lives
4400 Computer Drive, MS D239
Westboro MA 01580
Phone: 508 898 7312
Email: Lemons_Terry AT emc DOT com
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of Pierpa
Sent: Thursday, September 06, 2007 7:03 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Windows2003 R2 change tape order at boot
Hi all,
I've a problem I'm not able to solve.
I'm using NW7.4 on a Windows2003 R2 server with a ADIC scalar24 library with 2
tapes in FC. This tapes are connected through the SAN to a Qlogic FC board on
my server on two different ports. I've installed OEM IBM drivers for my LTO3
drives but sometimes, rebooting the server, the order of the tapes changes.
Therefore the library is confused, thinking to manage tape1 instead of tape0
and viceversa. I don't know on Windows and on Qlogic if I can establish the
tapes order. May I use on windows something like persistent binding ?
Any suggestion will be appreciated
Pierp
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