> -----Original Message-----
> From: IBM Mainframe Discussion List 
> [mailto:[EMAIL PROTECTED] On Behalf Of Paul Gilmartin
> Sent: Wednesday, April 25, 2007 7:24 AM
> To: IBM-MAIN@BAMA.UA.EDU
> Subject: Re: Lnnnnn tapes mystery
> 
> 
> In a recent note, Ed Gould said:
> 
> > Date:         Tue, 24 Apr 2007 19:43:21 -0500
> > 
> > > There is also the poor design of Tape Labels where you 
> have only 17
> > > positions to store the last 17 characters of 18-44 character long
> > 
> > There must be a history behind this decision. Can anyone share it?
> > 
> Is it sufficient explanation that storage used to be expensive?
> 
> But why does the deficiency persist into the 21st century?
> 
> -- gil

Well, (1) it is an ANSI standard, not subject to IBM's whim and (2) it
would likely cause much consternation in the industry to break the
standard. If nothing else, IBM would need to update every system of
theirs which processes tape labels to be compatable with the new format.
z/OS, z/VM-CMS, z/VSE, z/Linux (I think it can process SL tapes). 

--
John McKown
Senior Systems Programmer
HealthMarkets
Keeping the Promise of Affordable Coverage
Administrative Services Group
Information Technology

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