Solved

tar or ufsdump

Posted on 2002-05-06
4
680 Views
Last Modified: 2013-12-27
Hi..

  for full monthly backup,
  which command is better to use

  ufsdump or tar .

  what is the justification.

  tq
0
Comment
Question by:ismahwati
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 38

Expert Comment

by:yuzh
ID: 6993038
If you are doing fullsystem backup, use ufsdump.

ufsdump -- can backup everything (includind device file and links)

if you only need to backup you normal data file (not special file like device file, you can use tar). tar is not for fullsystem backup, soemtime it has problem with handling special file.

cpio is another option for system backup. it can handle special files. Since you are using Solaris UNIX, ufsdump is simple to use.

0
 
LVL 40

Accepted Solution

by:
jlevie earned 50 total points
ID: 6994459
As a backup for yuzh most execellent advice...

ufsdump is the preferred mechanism as it will backup all of the special file types. Additionally it understands sparse files where not all of a files allocation is actually used. Some versions of tar can handle those, but others will restore a sparse file as it's full allocation rather than the size it was when dumped.

Also ufsrestore includes an interactive mode which makes restoring part of a backup much easier (see 'man ufsrestore' for details).
0
 
LVL 4

Expert Comment

by:newmang
ID: 6995251
To make it all a lot easier look on the net for a script "hostdump.sh" from W. Curtis Preston

This will make the backups a whole lot easier as it will work out what backup facilities are available on a given host and use the best one present, it uses the system files to determine what file systems exist so it's basically a matter of loading it onto any system and just running it.

Cheers - gavin
0
 

Author Comment

by:ismahwati
ID: 7002835
thank...i will use ufsdump.
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Using Grep to Find a file 8 107
Sed question 2 124
unable to put logic for reading multiple repo in a single file 4 72
problem creating new luks volume on new VM disk 5 117
Using libpcap/Jpcap to capture and send packets on Solaris version (10/11) Library used: 1.      Libpcap (http://www.tcpdump.org) Version 1.2 2.      Jpcap(http://netresearch.ics.uci.edu/kfujii/Jpcap/doc/index.html) Version 0.6 Prerequisite: 1.      GCC …
FreeBSD on EC2 FreeBSD (https://www.freebsd.org) is a robust Unix-like operating system that has been around for many years. FreeBSD is available on Amazon EC2 through Amazon Machine Images (AMIs) provided by FreeBSD developer and security office…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question