RAM versus Swap: 

the age old question; if i've got X physical memory, how much swap should 
I create?

- in the old days of SunOS, the recommendation was to have swap be
at least twice as large as your physical ram.  This was partly due
to SunOS's innefficiency in managing its physical ram, and partly
because back then, Disk was cheap and memory was expensive.

- In the Solaris world, the operating system more efficiently manages
itself, and far less swap is needed.  In fact, located somewhere deep
in docs.sun.com (according to a post to sun managers-L january, 2000):
the recommended sizes of Swap:

Physical memory (mbs)	Swap space (mbs)
16-64; 32mb swap
64-128: 64mb swap
128-512: 128mb swap
>512: 256mb swap

- Fact: solaris will boot, even if NO swap space is configured.  It won't
perform terribly well, but at least it will boot up so you can add
some swap.

- the obvious caveat to this is: many Servers run applications that depend
on large amounds of swap.  Any RDBMS system (Sybase, Oracle, etc) depends
on ample amounts of swap present.  Thus, I recommend, paradoxically, the
old 2x RAM rule for database systems, if note more. If you've got the
swap space available, configure it for the Database's use.