topic Re: System backup in Operating System - Linux

System backup

Roland Piette — Fri, 20 Jan 2006 02:57:48 GMT

Hi everybody,

1) Under HP-UX exists a tools to make an system backup known as Ignite wich create a bootable tape.

Is it exist any tools under RH wich gives the same facility ?

2) I another way I try to use the dump (replacement of fbackup) command to backup file systems but I received this following messages :

DUMP: Date of this level 0 dump: Thu Jan 19 22:15:01 2006
DUMP: Dumping /dev/mapper/VolGroup00-LogVol00 (/) to /dev/st0
DUMP: Label: none
DUMP: Writing 10 Kilobyte records
DUMP: mapping (Pass I) [regular files]
DUMP: mapping (Pass II) [directories]
DUMP: estimated 53669708 blocks.
DUMP: Volume 1 started with block 1 at: Thu Jan 19 22:15:26 2006
DUMP: dumping (Pass III) [directories]
DUMP: ACLs in inode #2 won't be dumped
DUMP: ACLs in inode #376833 won't be dumped
DUMP: ACLs in inode #983041 won't be dumped
DUMP: ACLs in inode #983042 won't be dumped
DUMP: ACLs in inode #983043 won't be dumped
DUMP: ACLs in inode #983044 won't be dumped
DUMP: ACLs in inode #983045 won't be dumped
DUMP: ACLs in inode #983046 won't be dumped
DUMP: ACLs in inode #983051 won't be dumped
DUMP: ACLs in inode #983053 won't be dumped
DUMP: ACLs in inode #983062 won't be dumped
DUMP: ACLs in inode #983071 won't be dumped
DUMP: ACLs in inode #983076 won't be dumped
DUMP: ACLs in inode #983077 won't be dumped
DUMP: ACLs in inode #983078 won't be dumped
.....

The log file contains more than 112900 times of this last line !!!

Witch tools can backup safely ACL's ?
What can happen if I have to restore files from this backup ?

Thanks

Re: System backup

Ivan Ferreira — Fri, 20 Jan 2006 06:37:31 GMT

You should not use dump for backup on Linux, it has problems with buffers that may cause that your data cannot be restored. Use the star command to backup the data, star supports ACL's and SELinux attributes.

SystemImager and Mondo rescue can generate a backup of your system to network or cd media.

Re: System backup

Sergejs Svitnevs — Fri, 20 Jan 2006 06:56:00 GMT

http://www.mondorescue.org/
You can try this excellent opensource project for backs up your linux server.

Re: System backup

Roland Piette — Mon, 23 Jan 2006 07:38:53 GMT

Hi Ivan and Sergejs,

Thanks for your repliues.

I haven't found the command star in the man pages neither in the file system.

What do you think about amanda, wich is in the RH distribution. I would like to minimize the package installed on this server. So I give my prferrence to the standard distribution.

Roland

Re: System backup

Ivan Ferreira — Mon, 23 Jan 2006 07:42:22 GMT

Star is an excelent and simple command but is not installed by default, install from the distribution cd or use red hat network.

Re: System backup

Lorenzo Facello — Mon, 23 Jan 2006 08:56:15 GMT

Hi Roland,

try this
http://mkcdrec.ota.be/
is a tool taht makes a bootable disaster recovery image (.iso)

Regds
LF

Re: System backup

Roland Piette — Fri, 27 Jan 2006 08:29:53 GMT

Thanks all for your suggestions.