tempdb/lazy writes/HK

After reading thru the docs for tempdb, tempdb write optimization, and
the cache config option "HK ignore cache" and checkpoints, I have the
following question:

If a set up a second tempdb, bind it to a cache that's as big as the
database, set HK ignore cache, will this in effect stop physical
writes in that secondary tempdb to physical disk?

Or will they ultimately get written to disk by checkpoint?  

Even if ASE, in this scenario ultimately writes to disk, is my thought
process correct in that it's really not necessary in the specific
example above, since it's a tempdb type database, and I have a cache
as big as the database?

9/3/2010 8:23:27 PM
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