I work for a government organization here in India.
I am sort of new to CentOS & Linux.
We have a 1TB disk in one of our machines that needs to be moved to a new server.
How can I do that without losing any of the data?
The whole drive is mounted onto a single file system (/software). I would like to move the drive onto our new server.
Thanks in advance.
On Sun, 2008-03-16 at 00:18 +0530, Truejack wrote:
We have a 1TB disk in one of our machines that needs to be moved to a new server.
How can I do that without losing any of the data?
Shut down the first machine, unplug the drive, shut down the second machine, plug the drive in, start both machines, and change the software configurations as required (including /etc/fstab).
On Sat, 2008-03-15 at 14:57 -0400, Ignacio Vazquez-Abrams wrote:
On Sun, 2008-03-16 at 00:18 +0530, Truejack wrote:
We have a 1TB disk in one of our machines that needs to be moved to a new server.
How can I do that without losing any of the data?
Shut down the first machine, unplug the drive, shut down the second machine, plug the drive in, start both machines, and change the software configurations as required (including /etc/fstab).
Unless it is an LVM volume? OP didn't say much. If so, export the volume first, then import it on the target machine.
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On Saturday, March 15, 2008 3:41 PM -0400 "William L. Maltby" CentOS4Bill@triad.rr.com wrote:
Unless it is an LVM volume? OP didn't say much. If so, export the volume first, then import it on the target machine.
For those of us not familiar with the details of LVM, what does the export/import do?
I was going to take the 300 GB PATA drive out of an old HP Vectra and move it to a newer box with more memory, and didn't realize I'd need to do this step.
On Wed, 2008-03-19 at 17:49 -0700, Kenneth Porter wrote:
On Saturday, March 15, 2008 3:41 PM -0400 "William L. Maltby" CentOS4Bill@triad.rr.com wrote:
Unless it is an LVM volume? OP didn't say much. If so, export the volume first, then import it on the target machine.
For those of us not familiar with the details of LVM, what does the export/import do?
From "man vgimport":
DESCRIPTION vgimport allows you to make a Volume Group that was previously exported using vgexport(8) known to the system again, perhaps after moving its Physical Volumes from a different machine.
Essentially, IIUC, vgexport updates the LVM configuration to remove the group from the system. I *guess* it might also put some status information into the descriptors on the volume being removed so that critical information is available when a vgimport is done.
I can tell you from first-hand experience that moving the volume without doing this makes for extra work when re-installing, though I can say that it can be done. Again, from first-hand experience.
I was going to take the 300 GB PATA drive out of an old HP Vectra and move it to a newer box with more memory, and didn't realize I'd need to do this step.
One of the *few* advantages to not using LVM. Overall, I'd rather use it in most cases.
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Ignacio Vazquez-Abrams -
Kenneth Porter -
Truejack -
William L. Maltby