Sounds like SCSI Bus Resets to me. Here's some supplemental info that you might
find useful:
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q111837
<snip>
Summary
Tape API (application programming interface) functions may return an error code
of ERROR_BUS_RESET when operating on SCSI tape devices. In many cases, you can
ignore this error value and retry the operation. However, this error is fatal
if received during a series of write operations because a tape drive cannot
recover from a bus reset and continue writing.
<end snip>
The last sentence sums it up.....
HTH,
SG
-----Original Message-----
From: Emre PEKAR [mailto:emre.pekar AT DATA-TEK.COM DOT TR]
Sent: Monday, August 12, 2002 10:29 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] Premature cartridges
Ok, to start with: the machines are connected to the same switch with the
disks...
They have emulex hba's...
the connection is as follows: W2K->HBA->switch->MDR->L3500
-----Original Message-----
From: Davina Treiber [mailto:treiber AT HOTPOP DOT COM]
Sent: 12 A?ustos 2002 Pazartesi 08:23
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] Premature cartridges
On Mon, 12 Aug 2002 18:08:26 +0300, Emre PEKAR <emre.pekar AT DATA-TEK.COM DOT
TR>
wrote:
>I have 3 W2K systems all connected to a Sun StorEdge3500 (3XDLT7000) with
>a Modular Data Router. One of the W2K systems is the backuo server and the
>other
>two are storage nodes. They all run 6.1.1. The problems is I am getting
>some DLT tapes
>FULL at 4GBs. This problems goes away for a certain time being if I
>re-install&configure
>networker
Why would you choose to do that? Seems like a sledgehammer approach.
There are lots of reasons why your tapes could be marked full prematurely.
In a pure SCSI environment it would be because of problems with
drives/tapes/cabling/terminators etc. You have an MDR so you have a SAN.
You have given us very little to go on, in terms of what your config is.
SAN introduces many more failure modes, such as bus resets, conflicts with
other devices or servers etc. You need to do a bit of work to find out what
the OS thinks is wrong. Check daemon.log and the event logger in W2K to see
whether there are device or controller errors. Then help us to help you by
telling us about your environment.
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