Re: Database Archive

  • From: Carel-Jan Engel <cjpengel.dbalert@xxxxxxxxx>
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Tue, 13 Apr 2004 00:32:28 +0200

Jared,
You're right. This needs a reaction. First thought from the devil's 
advocate: probably this necessity of slimming down is due to restrictions 
of SAP to the database? I don't use SAP, but does it allow you to use 
partitioning? That would enable you to make untouched partitions read-only, 
enabling you to minimize th backup window. However, backup-window? What's 
the problem with hot backup? Escpecially when using (yes, I'm a BAARF 
member, i know) SAN or NAS with snapshotting capabilities.

Apart from that, how can 27GB/month cause HW cost of USD 700,000/year? 
That's USD 2,160/GB!

Cotrone obviously hasn't heard of SQL-tuning. And I wonder what kind of 
database Southwest Gas is using. They look at the age of files, before they 
take them to off-line storage, where they can be accessed transparently 
from the originbal application. So where's the saving? Either the use has 
to direct the application to the Applimation data store, or the application 
doesn't know the data is somewhere else. How does it get rid of searching 
all the archived data? Partitoning?

I particularly don't like the archiving on the 9i/Linux stuff. Is this a 
competition in highest complexity? How much extra dependencies can we add?

Then the cost. As stated in this list a few days ago, Oracle is payed per 
user or CPU, not per GB ram or disk. So you start buying extra Oracle 
licences to save money? Standard edition One won't do the job. When you're 
on a named user license I don't see the problem, when you're on a processor 
license it will be expensive.

My first impression is that a mix of expensive storage for your 'hot spots' 
and cheaper storage for the lesser active data, but all of it connected to 
the same system (either DAS/SAN/NAS), might be a good alternative. A nice 
feauture for ASSM in 11-something? What about the cost of having your 
reports running against the separated data, running integrated 
trend-analysis, analyzing past and actual data? This will launch lots of 
new consulting demands, to re-integrate  all archived and actual data.

And finally, yes, what are we talkin about. 120BG? So what?


Just my 0,02

Regards, Carel-Jan


PS, I think I figured out what 'Just my 0,02' means. Actually, this is the 
first time I dare to use it. But were does it come from?


Regards, Carel-Jan

===
If you think education is expensive, try ignorance. (Derek Bok)
=== 

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