Backup & Restore - Best Practises - Offsite Replication.

Hi All,

I'm looking for some recomendations and guidance to improve my current Backup strategy.

Two locations connected via 1.5mbps MPLS link, each site holds approx 400gb of data that is backed up nightly using BackupExec 12.5 and an LTO3 tape drive at each location.

What we are looking to do is a simple cost effective way to replicate our data from our main site to our branch office and vice versa.

First thought was to use DFS replication. Only problem with that is if user at site A deletes files then they will be deleted at site b.

The data that will be replicated will be only for offsite storage / backup purposes so the users at the second site won't be accessing it.

Any thoughts on cost effective devices or appliances to do this for me? I've researched the HP lefthand and Dell Equalogics SAN's but the cost is quite high.


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Auric1983Asked:
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PaperTigerCommented:
What kind of data are we talking about?

The best tool to do replication is Double Take
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Auric1983Author Commented:
PaperTiger,

Mostly file share, we're an engineering firm so a lot of documents, photos etc.

I would say 75% is documents and multimedia, the rest is Exchange and a few small SQL databases.

Our ERP is hosted elsewhere so there is no ERP data.
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PaperTigerCommented:
Double Take is the way to go.
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Auric1983Author Commented:
If I was to look at using Double Take, what sort of hardware would be recomended at each end for the storage?

And how would you say this stacks up against a SAN with built in block level replication technology.
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PaperTigerCommented:
You actual question is far more complicated than the EE can handle. Without knowing your environment, I cannot really comment.

You are free to contact me - my info is in my profile.

I'll answer your original question. I assume you just want to preserve data, not trying to replicate a whole system. In this case, DT is the way to do it. You basically set up another set of machines on the other hand, then let DT to replicate. Each replication set needs 2 DT licenses which costs 2x$2500.

SAN replication works in the similar fashion if you can tolerate the cost. There are certain things that SAN does not replicate well such as DC.
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Auric1983Author Commented:
Thank you.

I'm not too worried about replicating the Active Directory structure, we have about 10 locations and the AD structure is at each.

I'm just looking to protect our Data and LOB applications.

Thank you for the information
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