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Backup strategies

al4629740
al4629740 asked
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We have 40 users that have moderate data needs.  They store on their computer already all their documents and stuff.  We are buying a 2TB NAS device and looking to back up all their documents to the NAS device.  Any advice on different storage schemes or backup schemes?  

Should I just put all their information on the NAS device, instead of locally,  and have them access it directly from the NAS unit, since it is too much to back up all these computers over the network all the time?
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If your 40 users put all their information on the NAS device insead of locally, then what is your backup for the NAS device?  Another NAS device?  What is your offsite storage (disaster recovery) strategy, in case your building catches on fire, or flood, or hurricane, and everything is lost?

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Commented:
Any suggestions as to which method is more effective.  Locally or on the network?
You will probably gets lots of opions and advice on this topic, which is good.

Ideally (in my opinion) with 40 users and I assume a server, you need some sort of central management as well as locally stored and protected folders.  Even if you declare that "all" important data will be saved on a NAS or central server, someone will store a critical business database, spreadsheet, etc. in their local My Documents or other folder.

Symantec and Acronis are two products that have small-business folder and image backup solutions:
http://www.acronis.com/smb/
http://www.symantec.com/smb/products/index.jsp

These manage the backups from a central console/environment.  Usually incremental backups are taken nightly so that network activity is minimized.  On top of all that you then need to include disaster recovery of the server into the total solution.  As you can see, no simple answer.  But these products as well as Google search for "disaster recovery" solutions or EE search will lead you to a lot of spirited and helpful information.
The same kind of central backup, with incremental / delta file changes, and support for Exchange, SQL, Netware and other databases or OS's but at a much cheaper price is Ahsay OBS.  
www.ahsay.com

And you can address the Disaster Recovery aspect with a Replication license, that let's you set up a redundant second backup server at a remote location. Communication between primary and replication servers is over a compressed and encrypted SSL channel. Host it at a nearby datacentre and it should be very quick and safe in the event of a flood or fire.
Lee W, MVPTechnology and Business Process Advisor
Most Valuable Expert 2013

Commented:
Expert4XP asked an excellent question - how would you backup the NAS?

Do you have a Windows domain?  If so, moving the data there is easy...

I would strongly recommend you check out my page on backup - it started as a comment here and grew into a web page:
http://www.lwcomputing.com/tips/static/backup.asp