03-29-2006
Quote:
# mt -f /dev/rmt/0m rew
# tar -cvf /dev/rmt/0m *
First off, you ARE starting from the begining of the tape by using the command mt -f /dev/rmt/0m rew. Check out the man page for mt. Since you probably use this command every day, you would not be appending to the tape at all (if the tar command had worked).
Second - check out
this thread on compression.
Third, take a look at the E option for tar - part of it is for supporting file sizes greater than 8GB.
Last edited by RTM; 03-29-2006 at 10:22 AM..
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tcopy(1) User Commands tcopy(1)
NAME
tcopy - copy a magnetic tape
SYNOPSIS
tcopy source [destination]
DESCRIPTION
The tcopy utility copies the magnetic tape mounted on the tape drive specified by the source argument. The only assumption made about the
contents of a tape is that there are two tape marks at the end.
When only a source drive is specified, tcopy scans the tape, and displays information about the sizes of records and tape files. If a des-
tination is specified, tcopy makes a copies the source tape onto the destination tape, with blocking preserved. As it copies, tcopy pro-
duces the same output as it does when only scanning a tape.
The tcopy utility requires the use of Berkeley-compatible device names. For example,
example% tcopy /dev/rmt/1b /dev/rmt/2b
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWesu |
+-----------------------------+-----------------------------+
SEE ALSO
mt(1), ioctl(2), attributes(5)
NOTES
tcopy will only run on systems supporting an associated set of ioctl(2) requests.
SunOS 5.10 10 Mar 2000 tcopy(1)