Re: [Networker] Blocksize on DLT7000

It could be a side effect of end of tape detection,

I currently have a DLT7000 in a exabyte 18D (just back from repair) that
has this behaviour, it has the same firmware as the DLT7000 in my
exabyte 230 unit. I am still investigating the exact reason for this
message but I see it only at the end of the tape.

Maarten Boot

Scott Russell wrote:
>
> On Thu, Aug 15, 2002 at 07:31:03AM -0500, Charles Walther wrote:
> > I occasionally see the message:
> > "\\.\Tapex Block size is 32768 bytes not 65536 bytes. Verify the device
> > configuration. Tape positioning by record is disabled.
> >
> >
> > How and why would this happen,  perhaps the tape came from a previous
> > DLT4000 pool ?  It only happens on some tapes, so I am confident that the
> > device is setup correctly.
>
> That's one possibility. Basically it means that while reading the tape
> Networker detected a different block size than it expected. How it got
> that way in the first place I'm not sure of.
>
> > Does the latter part of this message (positioning) mean that a single file
> > restore cannot be performed ?
>
> It means that restores will take a loooonng time. Networker normally
> does positioning by block size iirc. In this situation it simple reads
> through the tape until it finds what it needs and starts the restore.
>
> --
>   Scott Russell (lnxgeek AT us.ibm DOT com)
>   Linux Technology Center, System Admin, RHCE.
>   Dial 877-735-8200 then ask for 919-543-9289 (TTY)
>
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