On Thu, Apr 24, 2003 at 04:06:16PM -0500, C. Chan wrote:
>
> I experimented with different ibs= settings and spacing forward a
> number of records but without any better result.
Including bs=1 ?
> Are there any standard tools better tools than dd for extracting
> the data record by record from a tape?
Don't know your OS.
On Solaris there is a command, tcopy (tapecopy) intended for making,
duh, copies of tapes.
I've only used it for analysis. If given only a source tape it reports
each file something like:
file 4:
2083 records of 32K
1 record of 18321 bytes
EOF
and continues on to the end of the tape.
If given a destination also, which could be a disk file, it will copy the
tape to that destination. Perhaps you could fsf to the beginning of the
12GB tape file and let it copy until at least 2 eof's or first eof after
12GB and then interupt it to avoid getting the entire tape. Once on disk
a binary editor might be able to determine/fix the corruption.
--
Jon H. LaBadie jon AT jgcomp DOT com
JG Computing
4455 Province Line Road (609) 252-0159
Princeton, NJ 08540-4322 (609) 683-7220 (fax)
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