01-20-2011
View tape backup files on RHEL5 Operating System
I have an AIX server with a tape Library residing on it. I intend to restore the data backed up to the tape on Red Hat Enterprise Linux 5.
First , i would want to view the contents of the tape on RHEL 5(x86) but seems to be giving an input output error.
I observed that if i backup to tape on AIX, i can only view the contents of my backup on the AIX server same applies to Linux.
I wish to be able to view contents of the backup done on AIX to tape on my RHEL 5(x86) which i use in accessing the tape library remotely and vice versa.
---------- Post updated at 08:49 AM ---------- Previous update was at 05:55 AM ----------
Tnx for the post.
I did not use any software to write to the tape. I made use of the tar command to write to the tape on AIX Server.
The backup command used was "tar cvf /dev/rmt2 /mybackup
Now viewing the tape from the RHEL5 (x86) server gives input /output error using the command: tar tvf optimum@10.0.0.1: /dev/rmt2
Error: Cannot open: Input/output error
tar:Error is not recoverable: exiting now
where 10.0.0.1 is the IP address of the AIX server :(Note not real IP address)
I also tried the following command: tar tvf /dev/rmt2
Error: tar: Error is not recoverable: exiting now
Hope to get the feedback soonest. Tnx
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LEARN ABOUT DEBIAN
dds2index
dds2index(1) General Commands Manual dds2index(1)
NAME
dds2index - tool to create an indexfile for the use of
SYNOPSIS
dds2index [options]
DESCRIPTION
dds2index creates an index file that is required by the file extraction utility dds2tar(1). It works on tar archives stored on dds tape
devices (DAT). Since the file structure of the tape archives is used to extract the files, the archive must be an uncompressed tar ar-
chive. But compression by the transparent signal processor of the tape device is allowed.
The index created by dds2index is written to stdout by default and should normally be stored on hard disk as indexfile for later use by
dds2tar(1).
The default tape device to read from is /dev/nst0, which may be overridden with the environment variable TAPE, which in turn may be over-
ridden with the -f device option. The device must be a SCSI tape device.
OPTIONS
-f devicefile
device of the tape archive. Must be a character special file.
-t indexfile
write the index to indexfile, not to stdout.
-z,--compress
write the index in (gzip) compressed mode.
--help print some screens of online help with examples through a pager and exit immediatley.
OPTIONS you didn't really need
-b, --block-size
Set the maximal blocksize, dds2index can handle.
--z, --no-compress
Don't filter the archive file through gzip.
-v,--verbose
verbose mode. Print to stderr what is going on.
-h,--hash-mode
Print a hash sign '#' to stderr for each MB read from tape.
-V,--version
Print the version number of dds2index to stderr and exit immediately.
EXAMPLES
Example of getting the index from the default tape /dev/nst0 and storing it in file archive.idx:
dds2index -v -t archive.idx
WARNING
This program can only read records (tar is calling them tape blocks) up to 32 kbytes. A bigger buffer will cause problems with the Linux
device driver.
ENVIRONMENT
The environment variable TAPE overrides the default tape device /dev/nst0.
FILES
/dev/nst0 default tape device file. Must be a character special file.
SEE ALSO
dds2tar(1), mt(1), mt-dds(1), tar(1), gzip(1)
HISTORY
This program was created as a tool for dds2tar(1).
AUTHOR
J"org Weule (weule@cs.uni-duesseldorf.de), Phone +49 211 751409. This software is available at ftp.uni-duesseldorf.de:/pub/unix/apollo
2.4 dds2index(1)