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Date: | Wed, 28 Jan 2015 20:49:27 -0500 |
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In the past I use to use a utility called mkcdrec which has a successor project called relax and recover (rear for short) I haven't used the new version but it should work well.
That said if you can package every thing in rpms you could use spacewalk or katello to create identical builds including copying config files. As a long term solution I like this option because it allows you to quickly rebuild after a catastrophic failure in a very clean precise way. It also allows for quick expansion of an existing environment. In my environment the typical spacewalk build takes 20 minutes and in most cases includes every thing needed to bring the box up immediately aside from state data such as database content and my normal database recovery scripts handle that and in many cases spacewalk even automatically executes them after the install is complete.
Sent from my BlackBerry 10 smartphone.
Original Message
From: Yasha Karant
Sent: Wednesday, January 28, 2015 20:09
To: [log in to unmask]
Subject: clonezilla or equivalent
We are in the process of migrating one of our compute engines (a CUDA
Nvidia GPU close coupled multichassis unit using Infiniband for the
compute fabric) to SL7 from SL6.
I have a fully operational SL 7 installation on my workstation that also
has a CUDA Nvidia GPU. We will first migrate the head node of the
compute engine to SL 7 and then continue with the rest of the nodes (the
head node has the 802.3 connection to the LAN and then Internet/WAN).
We plan to clone the SL7 boot harddrive from my workstation rather than
go through a full install from media -- we have done this before and
find cloning and then readjusting partitions to be the fastest method in
our circumstances.
In the past, we have physically removed drives and used an external
cloning device -- easy to do on the primary servers as these all have
drives in externally removable carriers -- but this would require me to
open up and tear down my workstation. I have mounted a new drive --
upon which we shall be putting SL7 for the compute engine -- in an
external USB3 interface. My workstation detects the drive; under SL7,
it is /dev/sdj . However, a dd does not work -- it seems not to want to
clone beyond 4 GBytes, rather than the full drive (the destination hard
drive has sufficient capacity to hold the entire image of the source
hard drive). My workstation has multiple bootable harddrives -- I am
booting from a different drive than the one from which I am cloning and
the clone source and target drives are not mounted during the cloning
(obviously, still visible in /dev ).
My next approach -- before disassembly -- will be to try clonezilla or
the equivalent. As I understand clonezilla, I boot from the clonezilla
dvd and then clone from source to target. Does clonezilla permit
cloning over a USB3 interface, or only a USB 2 (that I also can use)?
We are using ext4 partitions.
Does anyone have a preferred utility over clonezilla?
Any advice would be appreciated.
Yasha Karant
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