Re: C8 and backup solution

[Chris Adams <linux@xxxxxxxxxxx>]

Once upon a time, Valeri Galtsev <galtsev@xxxxxxxxxxxxxxxxx> said:
> On 4/3/20 8:34 AM, John Pierce wrote:
> >Do note, backup systems that use rsync or similar file by file copies of a
> >running system do not make coherent atomic snapshots, so things like
> >relational databases should be excluded from those, and backed by database
> >tools
> 
> Long ago I learned to back up databases by dumping them (with a flag
> "lock" or similar to make sure no changed are made during dump), and
> backing up dump file.

It isn't just databases - there are other things that backing up
individual files one at a time is not so good.  The best way to handle
that is to freeze/snapshot the whole filesystem, and then back up the
snapshot.  This can be scripted pretty easily if the filesystem is on
LVM.

Even better is to freeze _all_ filesystems simultaneously - this is
usually easiest if the system is a virtual machine and/or the storage is
on a SAN with snapshot capabilities.
-- 
Chris Adams <linux@xxxxxxxxxxx>
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