I think I just ran into this problem at about 2:30AM.
It was a DD3 and a DD2 120meter tape.
-Craig
--- Michael Berkowitz <[log in to unmask]> wrote:
> Al Nizzardini writes
>
> -----Original Message-----
> From: Nizzardini, Al [mailto:[log in to unmask]]
> Sent: Friday, April 25, 2003 5:41 AM
> To: [log in to unmask]
> Subject: Re: FLT 1009
>
>
> Seams the problem was I was using a 90 meter tape. The install process let
> you create the CSLT on a 90 but would not reboot. The 90 past a checkslt so
> for a while I looked else where. Problem solved using a 120 meter.
> -------------------------------------------------------------------------
> This item was posted two years ago about the same situation, I don't know if
> the DDS-3 firmware has yet been upgraded.
>
> From: [log in to unmask] [mailto:[log in to unmask]]
> Sent: Thursday, July 26, 2001 3:42 AM
> To: [log in to unmask]
> Subject: Re: DDS-3 Tapes, DDS-3 Tape Drives and SLT tapes
>
>
> The problem is firmware and has been fixed within the past few weeks.If
> anyone wants any more details on this please Email me.
>
> I can vouch that this can be a real problem as I was on a custoer site
> backing out of a 6.5 update and all their SLTs were on 90m tapes.I somehow
> conned the machine into thinking it had a 125m tape in the drive when it
> was a 90m tape.
> Mount any 125 tape,take the machine down while down dismount the 125 and
> replace with the 90m CSLT and it worked.Cannot guarantee that this will
> always be succesful.
>
> ----------
>
> There is an open SR on this (SR 8606105598, ITRC doc KBRC00004686), but it
> doesn't appear to be a resolved issue yet. I believe it's actually a
> combination of the firmware and the code that loads the tape, but it's a
> lot
> of C code, and I get lost after the first 4 or 5 sets of parentheses ;)
>
> After having dealt with this issue quite a few times, I've seen how
> regular
> and how intermittent the problem can be. Quite a few times the customer
> has
> been "saved" simply by trying BO ALT 3 or 4 times. One of those times
> might
> just make it past the code, and everything runs smoothly from there (once
> you're past the problem, you're past it).
>
> However, many times we haven't been able to ever boot off the tape, so the
> workaround is usually to boot back up PRI, then either recreate the tape
> (rerun AUTOINST, AUTOPAT, or PATCHIX) using a 125m tape, or some people
> have
> been able to use SLTCOPY and just copy the tape. TCPY might work there,
> also.
>
> Bottom line, tapes <125m MAY have a problem booting.
>
> Matt
>
>
> > If you are going to use a DDS-3 drive to create an SLT then you need to
> use
> > a DDS-3 tape, I have yet to have a system boot from a DDS-2 tape that
> was
> > created on a DDS-3 drive. Really doesn't have anything to do with the
> O/S
> > version as I have experienced this on 5.5, 6.0, and 6.5.
>
> I have also seen this phenomenon. Does anyone know what the reason for
> this
> is?
>
> It obviously has something to do with the creating of the SLT on DDS2
> media
> by a DDS3 drive (as opposed to a problem with a DDS3 drive reading a DDS2
> SLT.) I conclude this for several reasons. First, we have created many
> DDS2
> SLTs that have been used to load on DDS3 drives. Second, the factory SLTs
> are still delivered on DDS1 60 meter tapes. Consequently DDS3 drives have
> no
> inherent difficulties reading non-DDS3 SLTs. The only problem appears to
> be
> reading a non DDS3 tape specifically created on a DDS3 drive.
>
> It appears to me that this is somewhat of a time-bomb waiting to go off on
> an unsuspecting system manager who creates his/her SLTs in this manner. Do
> we know what the problem is? Is it a SYSGEN problem? A firmware issue on
> the
> DDS3 drives? Is it going to be fixed?
>
> Doug.
>
> Mike Berkowitz
> Guess? Inc.
>
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