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Full Discussion: Automated disk cloning
Special Forums Hardware Filesystems, Disks and Memory Automated disk cloning Post 302378271 by uvaio on Monday 7th of December 2009 11:43:27 AM
Old 12-07-2009
Well I'm trying to prove the Idea first in virtual environment, I don't want to screw up actually backed up data on real external disk and also it would take 2 hours each try on real drives to copy 100GB.
So I installed 2 different small linux distributions on 2 virtual disks in virtual machine simulating the stuff with much less data, so I have a sandbox to play with.

I want the external disk to be bootable. So I can boot directly from it and it will handle copying data from live OS disk to external disk itself.
I prepared external disk with small partition in the end of disk and made disk bootable from it. Linux starts up and runs shell script with steps I described.
I'm copying the data from lsource disk to external disk from position 0 which overwrites MBR on external disk with MBR of source disk, so I back up MBR of external and then restore it.
I coudl possibly do copy of data from position 513 which possible is the same thing as backing up and restoring later isn't it?

I just want to copy data from source disk to external but keeping external in its actual state, bootable and booting from partition at the end of the disk.
What I assumed was that if I keep external disk MBR including partition table created for one partition at the end, it would not matter on other data copied to the disk after MBR and not touching partition at the end of the disk.
I'm I completely wrong here?
 

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LEARN ABOUT HPUX

vxconfigbackup

vxconfigbackup(1M)														vxconfigbackup(1M)

NAME

       vxconfigbackup - back up disk group configuration

SYNOPSIS

       /etc/vx/bin/vxconfigbackup [-l directory] [[dgname ...] | [dgid ...]]

DESCRIPTION

       The  vxconfigbackup  utility  can  be  used to backup up the configuration information for one or more disk groups.  The disk groups may be
       specified either by name or by ID.  If no disk groups are specified, all disk group configurations are backed up.

OPTIONS

       -l directory
		 Specifies a directory other than the default where the backup configuration files are to be written.

		 Note: The default backup directory is /etc/vx/cbr/bk.

EXAMPLES

       Back up the configuration of the mydg disk group to the directory /dgbackup/mydg:

		 vxconfigbackup -l /dgbackup/mydg mydg

FILES

       /etc/vx/cbr/bk/dgname.dgid/dgid.dginfo
		 Default location of backup file for disk group information.

       /etc/vx/cbr/bk/dgname.dgid/dgid.diskinfo
		 Default location of backup file for disk attributes.

       /etc/vx/cbr/bk/dgname.dgid/dgid.binconfig
		 Default location of backup file for binary configuration copy.

       /etc/vx/cbr/bk/dgname.dgid/dgid.cfgrec
		 Default location of backup file for configuration records in vxprint -m format.

NOTES

       The vxconfigbackupd daemon automatically backs up a disk group's new configuration to the default backup directory whenever the	configura-
       tion is changed.  The vxconfigbackup command is provided to back up the configuration manually at any other desired time.

       The  disk  group  configuration	backup and restore utilities do not save any data in the public region. This includes file system or other
       application data that is configured within VxVM objects.

SEE ALSO

       vxconfigbackupd(1M), vxconfigrestore(1M)

VxVM 5.0.31.1							    24 Mar 2008 						vxconfigbackup(1M)
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