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Full Discussion: Presenting current LUNs to new OS. RHEL 7, LVM
Top Forums UNIX for Advanced & Expert Users Presenting current LUNs to new OS. RHEL 7, LVM Post 303039390 by Neo on Wednesday 2nd of October 2019 11:07:58 PM
Old 10-03-2019
With the costs of disks so cheap these days, you are better to clone the disks and put them in a development / test server instead of removing the critical disks and testing them, with a plan to rush them back to the original server if something goes wrong.

This is especially true if you are talking about a critical production asset.

If you are talking about a "mom and pop" server which does not serve a critical business need, then you can certainly consider some "quick, disk shuffle" method, but not for a business-critical production server.

Just fully recreate the current computer with clones of the application and data disks in a your new OS build / server; and then cut over too it when all is tested and ready to go live (syncing data as necessary).
This User Gave Thanks to Neo For This Post:
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LEARN ABOUT CENTOS

gnome-disks

GNOME-DISKS(1)							gnome-disk-utility						    GNOME-DISKS(1)

NAME

       gnome-disks - the GNOME Disks application

SYNOPSIS

       gnome-disks [OPTIONS]

DESCRIPTION

       gnome-disks is the command to launch the GNOME Disks application. Disks provides a way to inspect, format, partition and configure disks
       and block devices.

       The Disks application is single-instance. What this means is that if the application is not already running when the gnome-disks command is
       invoked, it will get launched and the command invocation will block until the application exits. Otherwise the existing application
       instance will be used and the gnome-disks command will exit immediately.

OPTIONS

       The following options are understood:

       --block-device DEVICE
	   Switches to the Disks application and selects the block device given by DEVICE (for example, /dev/sda).

       --block-device DEVICE --format-device [--xid WINDOW-ID]
	   Shows the "Format Volume" dialog for the block device given by DEVICE (for example, /dev/sdb1). If WINDOW-ID is given, makes the dialog
	   transient to the given XID.

       --help
	   Prints a short help text and exits.

AUTHOR

       Written by David Zeuthen <zeuthen@gmail.com> with a lot of help from many others.

BUGS

       Please send bug reports to either the distribution bug tracker or the upstream bug tracker at
       https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-disk-utility.

SEE ALSO

       gnome-disk-image-mounter(1), udisks(8)

GNOME
								    March 2013							    GNOME-DISKS(1)
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