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Re: [BackupPC-users] Yet another "moving backuppc" question
2012-06-22 15:37:17
Kameleon <kameleon25 AT gmail DOT com> wrote on 06/22/2012
02:37:17 PM:
> Thanks for the reply Les. Unfortunately setting up a "new backuppc"
> and leaving the old is not an option in our case. Here is our
> situation:
>
> When we initially ordered this server we ordered it with 32GB ram,
> dual quad-core xeon's, and 8x 2TB drives. We had to pass it off as
a
> "backup server" to get the funding through. So as soon as
we got it, I
> setup Xen on the physical host and then got to carving out LV's for
> virtual machines. One of which was the 6TB for the backuppc store.
Now
> here we are a few years later and we are wanting to remove the disks
> from this host and swap them with another physical server that has
8x
> 750GB drives. This is so that we can move the backuppc server onto
the
> physical host and to a different building away from the hosts it is
> backing up. So I have to move everything off this physical host,
> including the 6TB backuppc data store. I am trying to move everything
> I can to the SAN. However my problem with moving stuff is compounded
> by the version of CentOS we are running having issues with the hosts
> iscsi offload driver. So to get all the other servers off this host
we
> are recreating them on a separate host and manually rsync'ing the
> configs and such over to the new hosts. This still leaves the backuppc
> data. I don't have a problem doing the rsync way if it is the only
> reasonable option. However I wanted to run it by you guys to make
sure
> I wasn't missing something obvious.
Why can't you copy (at the block level) the VM image
onto the SAN? This should be able to be done at the *HOST* level,
making whatever OS you're using inside of BackupPC completely meaningless.
That's the beauty of VM's: their "hard
drives" are simply files (or partitions) on the host, and can easily
be moved around anywhere you wish. At the HOST level--not the GUEST
level.
If you have issues that prevent you from copying the
BackupPC VM image from the VM *host*, your problem is completely unrelated
to BackupPC and you should probably ask somewhere else for more specific
help.
Of course, there are a ton of other ways of solving
this: booting a Clonezilla live CD within the BackupPC guest and
using Clonezilla to copy the data to your SAN; unmount your BacukpPC
partition and using netcat to copy it to another hose; purchasing
(or temporarily building) a baby NAS to copy your 6TB of data onto from
the host instead of directly into the SAN and avoid whatever driver issues
you have; and I'm sure even more ways. Take some time and think outside
of the box (see my signature!)--and make sure that your objections to each
of these ways *really* are objections, and not you eliminating every way
but the one way you currently envision.
Tim Massey
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