RE: CD mastering via tape using compression -- MIDRANGE-L

Peter,

The error message looks funny...  Did you just copy/paste the message text
into this post?

> Message . . . . :   Error decompressing file /tempfile.
The extra space after file makes me think there's an embedded blank in the
file name...

Eric DeLong
Sally Beauty Company
MIS-Project Manager (BSG)
940-898-7863 or ext. 1863



> -----Original Message-----
> From: Peter Dow [mailto:maillist@dowsoftware.com]
> Sent: Saturday, August 03, 2002 10:01 PM
> To: MIDRANGE-L@midrange.com
> Subject: CD mastering via tape using compression
>
>
> I've written a little command and program based on IBM's example at
>
> http://www-1.ibm.com/servers/eserver/iseries/optical/cdrom/restore.htm
>
> which is basically:
>
>     -use API QlpHandleCdState to turn on the CD mastering mode
>     -SAVLIB with DTACPR(*YES)
>     -use API QlpHandleCdState to turn off the CD mastering mode
>     -CRTPF tempfile with record length 28672
>     -CPYFRMTAP to tempfile with blocklength and recordlength 28672
>     -FTP tempfile to a PC
>
> At this point, using Nero software, I burned tempfile onto a
> CD, stuck it in
> the AS400 CD drive, and tried to do a RSTLIB.  After listing
> each object in
> the saved library and stating that it couldn't restore it, it
> gives message
>
> Message . . . . :   Error decompressing file /tempfile.
>
> Cause . . . . . :   An error occurred while trying to
> decompress data read
>   from a tape, diskette, or optical volume.  The data should have been
>   compressed when it was written to the file.  The error
> occurred while
>   processing file *N in library *N on device OPT02.
> Recovery  . . . :   If the data writing operation did not
> complete normally,
>   create the input file again. Verify that the correct set of
> volumes is
>   available.  Try the request again. If the problem
> continues, report the
>   problem (ANZPRB command).
> Technical description . . . . . . . . :   Conditions that can
> cause this
> error
>   include: 1. Mounting an incorrect continuation volume for a
> multi-volume
>   file. 2. Using a volume which did not compress properly
> because the output
>   operation did not complete normally.
>
> Now, this same process, with DTACPR(*NO) on the SAVLIB
> command, works just
> fine.  More interesting stuff -- a DSPTAP DEV(TAP01) DATA(*LABELS)
> OUTPUT(*PRINT) of the tape file for both the compressed and
> non-compressed
> versions shows a record length of zero, and a block length of
> 32760.  This
> is odd, because the documentation at the URL noted above says
> use 28672.
>
> So I tried 32760 instead, and the RSTLIB got an MCH0601
> error, clearly not
> the solution to my problem.  IBM's documentation has a rather large
> paragraph talking about using CPROBJ instead of DTACPR(*YES),
> but ends up
> saying use one or the other, but not both.  Since CPROBJ does
> not work on
> data files, I would like to be able to use DTACPR(*YES), but
> it clearly
> doesn't work, in spite of the documentation implying
> otherwise (although
> their example has DTACPR(*NO)). Am I stuck using 3-4 times
> the number of
> CD's I would need if DTACPR(*YES) worked?  Or does anyone
> know what the
> problem is?  An associate of mine suggests that it's
> something wrong when
> writing to the CD.
>
> tia,
> Peter Dow
> Dow Software Services, Inc.
> 909 793-9050 voice
> 909 522-3214 cellular
> 909 793-4480 fax
>
>
>
> _______________________________________________
> This is the Midrange Systems Technical Discussion
> (MIDRANGE-L) mailing list
> To post a message email: MIDRANGE-L@midrange.com
> To subscribe, unsubscribe, or change list options,
> visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l
> or email: MIDRANGE-L-request@midrange.com
> Before posting, please take a moment to review the archives
> at http://archive.midrange.com/midrange-l.
>
>