Subject: Re: ffs fragmentation
To: Mike Cheponis <mac@Wireless.Com>
From: Jukka Marin <>
List: tech-kern
Date: 05/14/1999 23:30:04
On Fri, May 14, 1999 at 01:27:54PM -0700, Mike Cheponis wrote:
> The advantages of DynaSwap are:
> (1) You don't need to have a separate swap partition

True.  But it doesn't take up too much time to set one up :-)

> (2) You don't need to know the size of any of the disk used for "swap" - 
>     the OS dyanmically does it for you

You still need to know the amount of swap you need - to have enough disk
space available.

> (3) Large (up to the size of unallocated disk space) arrays enable huge
>     datasets.

I could never use this system on a news or mail server which often suffer
from lack of disk space.  If swap was being dynamically allocated, the
machines would DIE horribly when the disks became full.  Now they still
keep going and may recover in a while.