| Title: | MAGNETIC TAPEDRIVES |
| Moderator: | STKHLM::GJOHNSSON |
| Created: | Mon Sep 21 1987 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 3775 |
| Total number of notes: | 13147 |
I have 2 tlz07's on two as2100's running Openvms v6.1 and v6.2 that
report a large number of records for each file sent to tape with a
copy command. For example, a 1413 block file copied to tape with a
copy/log command is reported as 89520 records transferred to tape.
Mounting the tape with a variety of record sizes has no impact.
Anyone know what's happening here?
thks,
Bill
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 3660.1 | COOKIE::FROEHLIN | Let's RAID the Internet! | Tue Feb 18 1997 21:58 | 27 | |
Depends on how you mounted the tape. Using COPY with a tape
mounted /FOREIGN a file with sequential file organization produces
one tape block per input record.
> copy command. For example, a 1413 block file copied to tape with a
> copy/log command is reported as 89520 records transferred to tape.
Could the input file have 89,520 records in 1413 blocks? This would
be an average record size of around 8 bytes.
> Mounting the tape with a variety of record sizes has no impact.
Real commands would help. The MOUNT/RECORD only has no meaning
when using COPY. COPY always tries to maintain the record size
from the input file. If the tape is mounted /FOREIGN and the input file
has a fixed-length record format then COPY will stash as many records
into a block of size n (from MOUNT/BLOCKSIZE=n).
If the tape is not mounted /FOREIGN then COPY (thru RMS) will use the
appropriate ANSI file format on tape using the blocksize from the mount
command.
Do you have a DIR/FULL of the file(s)? How did they mount the tape?
How is the tape used afterwards? What format do they expect to be
on the tape?
Guenther
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| 3660.2 | SCASS1::SHOOK | clear pattern of faulty recollection | Thu Feb 20 1997 04:26 | 8 | |
re -1:
Thanks for taking the time to help. I'll post the answer to your
questions as soon as I can get back to the site and acquire them.
Regards,
Bill
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