DR configuation and planning

I'm new to storage and trying to plan DR site for our project.

How does it work? We just sync production data to DR  Storage every night? If there is any problem with production storage? point it to DR storage?
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Nick RhodeIT DirectorCommented:
In simple terms and theory....Yes.  You would want to replicate production to the DR site.  You can also configure the DR site to be passive and fire up what is necessary if production site goes down (fail-over).  It all depends on what software/environment you have already and if you have the tools to do so.  Also make sure you have a decent bandwith between the locations to save yourself the headache.

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mokkanAuthor Commented:
Thank you very much. We have EMC CLARiiON CX4 as storage. Can we replicate the data on another data center? If so, how can we do it?
mokkanAuthor Commented:
How often we need to replicate data? Do we need to do in async mode ? or do we need to schedule?
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Nick RhodeIT DirectorCommented:
A general best practice guide I followed by EMC


Async mode (I think we are talking about the same thing)  Is basically a mirror between the SAN's.  Its really tough to say because I am not in your environment to see whats best.  Async is good because it reduces the bandwith requirements, it also has lower impact on the environment but as with all mirrors there is a little problem, it can also replicate the bad if something went wrong etc.  I would contact EMC and maybe hit them up with choosing the right method to suite your business needs for replication, DR, and HA.
mokkanAuthor Commented:
What do you guys normally do? Do you replicate the data time to time?  I mean in most of the production environment. How do they replicate data?
madunix (Fadi SODAH)Commented:
Data replication is great for protecting critical data and ensuring quick recoveries, I have done this using IBM technology. I have implemented 3 (A-B-C) sites SAN-SAN replication using IBM technology DS8100 SAN storage. In my project I have SAN to SAN replication synchronous over Darkfiber (distance=5Km) with zero lost data, and asynchronous replication over MPLS with 35Mbps (distance=150Km). I used metro mirror between A-B and global mirror between B-C also i implemented MGM metro global mirror between A-C to get the meta data between the sites. The main challenge in SAN-SAN replication is to have enough bandwidth (media link) for replication... my recommendation fiber media would be the best for SAN replication but it's costly.

For DR/BCP solution I would suggest that you get help from your Business Partner
Nick RhodeIT DirectorCommented:
Typically (for my environment) I setup a mirror between the SANs and do frequent backups of my Virtual Farm.  This way if a tornado took the building away.  I know the enviroment is still ok and we just have to get some PC's and a few late night employees :)
mokkanAuthor Commented:
Thank you all
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