Awesome. That is what this list is about! And bare metal restores of
linux boxes was one of those things I always tried to avoid when I did
DR tests. :D Especially because in the healthcare field every one was
a special snowflake that had been lovingly hand crafted by the vendor. :(
Kent
On Wed, May 18, 2016 at 4:00 PM, Michael L <[email protected]
<mailto:[email protected]>> wrote:
I'm, again, thankful to be on this email list.
M
On Wed, May 18, 2016 at 2:59 PM, Chris McQuistion
<[email protected] <mailto:[email protected]>> wrote:
Thumbs up for Relax and Recover (REAR). I just got this
installed on a couple of our physical services (most are
virtual). You can do a 100% bare metal recovery with REAR and
that is something that has always me nervous about our
physical servers. The backup target can be a number of
different things. It can be an attached USB drive, a remote
NFS server, a remote Bacula server, and lots of other options.
Sure, we have backups of data, but to completely rebuild an
OS, reconfigure it and put all the data back in place is a
pain in the rear on the best day. With this system, you can
just reboot a working system and choose Relax and Recover from
the boot mode or burn a CD and boot from that (which is
necessary in the case of a hard drive failure or something.).
You can restore the entire machine pretty easily. This makes
me sleep a little better knowing that our VoIP server and
primary DHCP/DNS servers are backed up in such a way that I
can restore those entire machine in a matter of minutes,
rather than hours to rebuild and then restore from backups.
Chris
P.S. I do have to acknowledge that REAR is not the same thing
as long term archiving, but it could be used for that
purpose. You can even backup to tape for those that are into
that sort of thing...
On Tue, May 17, 2016 at 7:21 PM, Kent Perrier
<[email protected] <mailto:[email protected]>> wrote:
If you want to look at bare-metal restores, take a look at
http://relax-and-recover.org/
Red Hat just included this in RHEL.
Kent
On Tue, May 17, 2016 at 6:49 PM, Howard White
<[email protected] <mailto:[email protected]>> wrote:
On 05/17/2016 05:44 PM, Michael L wrote:
That sounds like something I would like to try.
I'm thankful for
getting to be on this email list.
M
Michael,
Your original post speaks to a broad topic that gets
short shrift in most circles because backup is
boring. And try as we might, the backups we _do_ make
are never enough.
First point, the term "backup" is ambiguous.
Second point (to which you originally alluded), backup
!= archive.
Let's take a swing at the difference. Backups are
about providing recovery for an information system.
Archives are about replicating, indexing and
preserving data.
So you need to ask yourself: self, what to I expect to
accomplish with these [ backups | archives ]. There
are four reasons to backup and even more reasons to
archive.
B1 - hardware failure, and not just hard drives.
B2 - software failure, and not just operating system
or applications.
B3 - security failure (can you say crypto-locker?)
B4 - human failure, and not just rm -rvf /
Bacula is a terrific backup solution that I have never
had the patience to get to work; I am jealous of Ben
and Steven Critchfield for their abilities to get that
system working. I personally have an instance of
BackupPC running but it could use an upgrade and some
verification testing. Neither of these are truly
archives.
Oh, but you want to do a bare metal restore? A bare
metal restore is an operation by which one may take a
backup "volume" and through the magic of television
cause a new instance of a given system to be running.
Personally for that requirement, I take images of
critical systems with Clonezilla. A Clonezilla image
allows me to create a system instance even though I
may have to overlay critical data from other backups
to complete a recovery.
Oh wait! You've got databases?? Add a whole 'nother
layer of storing journals and database unloads to your
plan. Databases may be complex data storage systems
that are not so easy to replicate.
Having fun yet?
Howard
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