What software to choose for backup in parallel to 2 storages?

Question

Backup

There are several computers and servers in different cities. Mostly windows, but there are a couple of webservers on ubuntu.
And there are 2 offices where there are disk arrays available from the outside.
The task is to put copies in parallel on 2 devices, so that in the event of an accident on one, the second copy is preserved.
Background: in one office there were backups of some devices, in another office backups of others. We thought it was reliable - raid 5, 2 communication channels, uninterruptibles ... And then we were robbed and taken out of one office everything, and a lot of data was lost. To avoid this, it was decided to keep copies in parallel in 2 geographically separated points across the country.
We chose software for copying, but did not see solutions with replication or parallel copying on the surface.

Answer 1

In almost any commercial backup software, you can set up a backup to two repositories, but not always synchronously. Those. at first we copy in the first, then in the second. Or we make a copy of the just made backup to the second site (so as not to load the product twice). Another backup must be checked - Schrödinger backup == no backup.

Answer 2

Yes, any software allows you to specify additional locations for placing archives.
Why do you need parallel? Better sequentially - first in one location, then in another.
I usually just copy an already created backup to a new location with a script on a schedule - it's more convenient.

We thought it was reliable - raid 5, 2 communication channels, uninterruptibles ...

Well, already from the description it is clear that it is unreliable - if you have raid 5 there, what kind of reliability can we talk about?
In general, as a rule, it makes no sense to put RAID on backup storage. Well, in any case, not the fifth.

Answer 3

For windows machines, look at EffectorSaver.

Answer 4

Handy Backup