headsup: swap_pager.c

[Poul-Henning Kamp]

In message <20030801083628.GB56492 at skywalker.creative.net.au>, Adrian Chadd wri
tes:
>On Fri, Aug 01, 2003, Poul-Henning Kamp wrote:
>
>> >Can you please describe how the interface between ccd(4) and the
>> >swap subsystem will work?  I like this idea, but it isn't
>> >immediately obvious how you plan to implement striping based on
>> >load and dynamic addition and removal of swap space.
>> 
>> 	ccdconfig -c ccd0 128 0 /dev/da0b /dev/da1b /dev/da2b
>> 	swapon /dev/ccd0
>
>.. and if I want to add another swap device, will that work?

Yes, but it will of course not be striped with the rest, it will
be laid out sequentially.

And as a side effect you will not run into the NSWAP=4 limitation
any more.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.