05-07-2013
Slow listing of LTo5 tape contents
Hi,
We are taking our filesystem backup having size of 1.3 TB on LTO5 catridges using the following command
find * -print|backup -ivf '/dev/rmt0' '-U'
i.e backup byname and it took about 6.5 Hours to complete When we are listing same tape contents using the following command
restore -lTf '/dev/rmt0'
then it took almost the same time to list the contents in which backup was completed. Is there any way to fasten the tape content listing? Any help any idea would be highly appreciated.
Thanks
10 More Discussions You Might Find Interesting
1. HP-UX
HI All
I have created the bootable recovery tape using the ignite command make_tape_recovery, I need help for the command to list the content recorded in that tape.
Regards,
Gege:confused: (1 Reply)
Discussion started by: cgege
1 Replies
2. UNIX for Dummies Questions & Answers
I'm pulling a 1MB file from tape using tar. It's a 300GB DLT tape and it does have a lot of files on it because it's go the entire OS and Oracle RMAN files and 3000 table exports, but it's taking 2-3 hours to pull this file off of it. Is this type of performance what I should expect?
The... (0 Replies)
Discussion started by: citrowske
0 Replies
3. UNIX for Dummies Questions & Answers
Hello guys,
I am having a requirement,
I am having three file m1,m2,m3 having some contents. I want to list last 20 lines of m1,m2 and m3 all together on the terminal.
I used tail -20 m1 m2 m3,
but it is showing error,
tail: option used in invalid context -- 2
Can u help me... (2 Replies)
Discussion started by: mraghunandanan
2 Replies
4. Solaris
Hi fellows,
Can you please share any command with which I can list down the file names inside a tar.gz file.
I have tried with these possibilities but in vain.
bash-3.00$ tar -ztvf file.tar.gz
tar: z: unknown function modifier
bash-3.00$ tar ztvf file.tar.gz
tar: z: unknown function... (1 Reply)
Discussion started by: Zaib
1 Replies
5. AIX
had this p520 server connected to a DDS-3 4mm tape drive...
running AIX 7.1 TL01 -- the latest release.
mksysb -i -e /dev/rmt/1 ..tells me only 1% is done after over an hour ...
I had no problems with th hardware and other connections...
tar command to /dev/rmt/1 runs very fast ....... (3 Replies)
Discussion started by: ppchu99
3 Replies
6. SCO
Hi.
I have this old server onto which i needed to list the content of a tape. This is a SCO box (SCO_SV 3.2 5.0.6 i386) and backup was done using cpio.
#tape status
status : ready beginning-of-tape
soft errors : 0
hard errors : 0
underruns : 0
#dtype /dev/rct0
/dev/rct0 ... (5 Replies)
Discussion started by: Stephan
5 Replies
7. Solaris
Hi,
We replaced one of our tape drives (attached to a SPARC Server) with an LTO5 one (external, attached vi SAS). Manually we check (using tar) that the OS can write data to the Tape Drive, however, the application backup is failing.
Since the application takes its own backup, the apps team... (0 Replies)
Discussion started by: Mack1982
0 Replies
8. UNIX for Dummies Questions & Answers
Hi All,
I would like to know couple of ways to list the content available in tar and gzipped file without extracting.
i.e., I would like to display the contents of test.tar.gz without extracting.
Note :: please suggest a command other that tar -ztvf (9 Replies)
Discussion started by: Girish19
9 Replies
9. Shell Programming and Scripting
I am often given log files at work in .csv format to work with, normally extracting various fields. I then have to figure out the number of each field so that I can extract that field with cut or awk. Normally I just manually count the fields, based on the field separator. I would like to be... (3 Replies)
Discussion started by: stumpyuk99
3 Replies
10. Shell Programming and Scripting
Hi All
I have a file which contains the timestamp of the log and a message and I want to implement a polling mechanism, where this log file is pooled every 2 minutes and list the errors in the file. I want to list down the errors only after the timestamp in the file is more than the current... (2 Replies)
Discussion started by: infyanurag
2 Replies
LEARN ABOUT DEBIAN
dds-dd
dds-dd(1) General Commands Manual dds-dd(1)
NAME
dds-dd - tool to read a dds device.
SYNOPSIS
dds-dd [ -f device ]
DESCRIPTION
dds-dd reads a dds tape devices (DAT). Every block is read and written to stdout. A tape with unknown block size or blocks of different
size can be read.
The default device is /dev/rmt0, which may be overridden with the environment variable TAPE, which in turn may be overridden with the
-f device option. The device must be a character special file.
OPTIONS
-f device
Device of the tape archive (default is /dev/rmt0). Must be a character special file connected to a dds tape device.
-V,--version
Print the version number of mt-dds to stderr and exit immediately.
--help print some screens of online help with examples through a pager and exit immediately.
EXAMPLES
Example: Read the tape and make a listing:
dds-dd | tar ft -
Example: Read the tape and make a listing:
dds-dd | cpio -it
ENVIRONMENT
The environment variable TAPE overrides the default tape device /dev/rmt0.
SEE ALSO
dds2tar(1), dds2index(1), mt(1), tar(1)
HISTORY
This program was created to use it in conjunction with dds2tar.
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 dds-dd(1)