What data do you consider critical?

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Backup and Recovery
Critical storage

We all backup our system data and store it to protect against a worst case scenario.  But what steps did you take to determine what data is actually critical?  Have you ever gone through a system restore and realized that what you should have considered critical was not backed up?

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  • CharlieBrowne
    In one AS400 shop I was in, the only thing that was "critical" that was lost, was my own development library. Ever since then (over 20 years ago), I have never bothered to define what is critical. My backup stratagey uses logic that backups up everything that I have determined is NOT critical. Thus when some new library or folder, etc is created, it will be backup up by default, unless I identify it as NOT critical.
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  • Kevin Beaver
    Great discussion point Chris...I see some people *try* to backup everything. That's an exercise in futility and can create unnecessary expense and liability. I also see people assume they've backed up everything that counts but they're not even close. The problem here is complexity associated with unstructured information. People simply don't know what's where. If they believe they do and it's pointed out that critical information is also being stored somewhere else, the response is always the same: "Oh yeah, I forgot about that." I don't envy network managers these days. More info on finding and securing unstructured information here: http://www.principlelogic.com/storage.html
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