The problem is that "restore"/"backup" file format has no "table of contents", so basically "restore" has to read the whole file to generate it. The limiting factor is the speed of the tape (this is probably the case with the "backup" too).
What you can do is: instead of piping the file list directly into "backup" create a file first. Then write this file first at the rmt-device, only then use the same list as input to "backup". Write to the "/dev/rmtN.1" instead of "/dev/rmtN", this is the drive without "rewind on exit", so your "table of contents" will be the first entry on the cartridge. You can restore this single file to get/search a list of files backed up in this session.
Backup (schematic)
Search (=restore toc only)
Restore (schematic, skip first entry, then restore normally)
I hope this helps.
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)
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)
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)
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)
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)
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)
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)
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)
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)
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 REDHAT
amverify
AMVERIFY(8) System Manager's Manual AMVERIFY(8)NAME
amverify - check an Amanda tape for errors
SYNOPSIS
amverify config [ slot [ runtapes ] ]
DESCRIPTION
Amverify reads an Amanda format tape and makes sure each backup image can be processed by amrestore and, if possible, the appropriate
restore program (e.g. tar).
Amverify runs amrestore on each file of the tape and pipes the output to a restore program (if available) with an option to create a cata-
logue of the backup. The catalogue itself is discarded. Only the success or failure of the operation itself is reported.
If the backup image cannot be processed by the restore program, e.g. if it was written on a different operating system, the image is sent
through dd to /dev/null. This still determines if the tape is readable, but does not do any internal consistency check on the image.
If config is set up to use a tape changer, the slot argument may be used to choose the first tape to process. Otherwise, the current slot
is used.
The runtapes configuration parameter determines how many tapes are processed unless it is specified on the command line.
See the amanda(8) man page for more details about Amanda.
AUTHOR
Axel Zinser <fifi@icem.de>
SEE ALSO amrestore(8), amanda(8), amverifyrun(8)AMVERIFY(8)