[Info-vax] RMS internals?
Richard B. Gilbert
rgilbert88 at comcast.net
Tue Aug 11 13:17:35 EDT 2009
Howard S Shubs wrote:
> In article <_7idnTheDPJv7hzXnZ2dnUVZ_gGdnZ2d at giganews.com>,
> "Richard B. Gilbert" <rgilbert88 at comcast.net> wrote:
>
>> We decided that anyone who hadn't bought anything for the last three
>> years was no longer a customer. Pruning these inactive customers
>> reduced the database to a size we could move during a three day weekend.
>> We kept an offline backup of the former customers that were pruned from
>> the live data base. We kept those backup tapes for about three years
>> and nobody *ever* asked asked for any of that old data.
>
> As usual, it's a situation dependent question. Some apps are required
> to keep data for 7, 10, 25, 35, or 50 years, if not longer. I've
> encountered one requiring 40 years of archiving, IIRC, at a nuclear
> power plant.
>
I hope that 50 year app doesn't generate a lot of data!
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