Also, if you have a Windows box that is zoned to see the tape drives,
the Removable Storage Service should be disabled.  This service will
occasionally request a status from the drive and, if it is found in an
unexpected state (like when another system is writing), it will send a
signal to rewind the tape.  

-Teresa



-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU]
On Behalf Of Davina Treiber
Sent: Monday, November 15, 2004 5:15 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] SCSI bus resets rewind tape in SAN?

Darren Dunham wrote:

>>Has anyone had a problem where a scsi bus reset rewound the drive
without
>>Networker's knowledge?   Any logs or ways to trace this?
>
>
> I have no evidence that "scsi bus resets" or anything else in
particular
> was the cause, but I have seen tape corruption of older versions of
> networker that appeared to be caused by unexpected rewinds.
>

Some SAN hardware using certain older firmware versions suffered from a
problem where the type of SCSI resets sent was particularly destructive
in this sense. The solution was to upgrade to firmware versions that did
not send TPRLO resets.

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