10-25-2010
Quote:
Originally Posted by
Mr.AIX
I tried this but got hang after some time and it did not completed !
The size of my mount point is 150 GB
I have no idea. Maybe your tape is simply full? Maybe you used the wrong device (with libraries picking the right one from several pseudo-devices can be quite tricky). Maybe something else.
Quote:
Originally Posted by
Mr.AIX
what are you understanding from the below !
This is from man tar
1 The ustar header format allows for file sizes to be as large as 8 GB. Therefore, the tar command is enabled to archive files of up to 8 GB in size.
This is correct.The AIX tar will throw error 0511-825 and quit if you attempt to tar a file with 8GB or more because of limitations in the ustar header format. The same is true, btw., for cpio using the ustar header format ("-Hustar").
You could either use GNU-tar, which doesn't adhere to the POSIX-standard (which is in itself not a problem, it just
may pose compatibility problems if you work in a heterogenous environment) but allows files to be up to 50 GB in size or you use some other means to back up your data - TSM, whatever, there are quite a few.
I hope this helps.
bakunin
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LEARN ABOUT FREEBSD
archive_write_set_format_shar
ARCHIVE_WRITE_FORMAT(3) BSD Library Functions Manual ARCHIVE_WRITE_FORMAT(3)
NAME
archive_write_set_format_cpio, archive_write_set_format_pax, archive_write_set_format_pax_restricted, archive_write_set_format_shar,
archive_write_set_format_shar_dump, archive_write_set_format_ustar -- functions for creating archives
LIBRARY
Streaming Archive Library (libarchive, -larchive)
SYNOPSIS
#include <archive.h>
int
archive_write_set_format_cpio(struct archive *);
int
archive_write_set_format_pax(struct archive *);
int
archive_write_set_format_pax_restricted(struct archive *);
int
archive_write_set_format_shar(struct archive *);
int
archive_write_set_format_shar_dump(struct archive *);
int
archive_write_set_format_ustar(struct archive *);
DESCRIPTION
These functions set the format that will be used for the archive.
The library can write POSIX octet-oriented cpio format archives, POSIX-standard ``pax interchange'' format archives, traditional ``shar'' ar-
chives, enhanced ``dump'' shar archives that store a variety of file attributes and handle binary files, and POSIX-standard ``ustar'' ar-
chives. The pax interchange format is a backwards-compatible tar format that adds key/value attributes to each entry and supports arbitrary
filenames, linknames, uids, sizes, etc. ``Restricted pax interchange format'' is the library default; this is the same as pax format, but
suppresses the pax extended header for most normal files. In most cases, this will result in ordinary ustar archives.
RETURN VALUES
These functions return ARCHIVE_OK on success, or ARCHIVE_FATAL.
ERRORS
Detailed error codes and textual descriptions are available from the archive_errno() and archive_error_string() functions.
SEE ALSO
tar(1), libarchive(3), archive_write(3), archive_write_set_options(3), cpio(5), mtree(5), tar(5)
BSD
February 2, 2012 BSD