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To: Jon Tara who wrote (17978)5/30/2003 11:50:42 AM
From: David Lawrence  Read Replies (2) | Respond to of 33005
 
Actually, upon further reflection, I agree with you that the search index would not be significantly larger than the message database itself. It was thinking about the total number of words rather than the total number unique words. The rate of increase in unique terms to be indexed will slow to a trickle over time, assuming that the search index encompasses the entire database and not just a rolling subset.



To: Jon Tara who wrote (17978)5/30/2003 1:20:03 PM
From: SI Bob  Respond to of 33005
 
The comparatively low cost of disk space (it's still not cheap when it's 15k-rpm SCSI drives) isn't the biggest issue. Cache is.

No matter how much disk space you have, it's important to stay away from the disks as much as possible. The fastest ones are orders of magnitude slower than memory.

If 10% of your reads on a very busy system are not being filled from cache, you've got serious problems.


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