> smgr is a generic i/o interface layer that allows multiple storage
> managers. Currently, we always use DEFAULT_SMGR as a parameter to smgr*
> functions, causing calls to the md* routines. Is there any value in
> just removing the smgr layer completely. It was originally for a CD
> jutebox i/o layer in addition to our current disk i/o layer.
>
Wouldn't this be the interface for a tablespace i/o manager ?
A tablespace has the advatage of only needing a number of files
for thousands of small tables, and reduces the overhead of many
open file handles. A tablespace is also needed before raw devices
can be efficiently exploited.
Andreas
