[OmniOS-discuss] to swap or not to swap

[Paul B. Henson]

I'm just about ready to deploy the home storage server I've been working 
on for a while, and am trying to decide what do about swap. The box has 
12 3TB drives configured as two 6 disk raidz2 vdevs and will have about 
300G of L2ARC. Right now it has 32G of memory. I ended up deciding to 
have a separate virtualization server so this one is pretty much only 
going to do file service via CIFS/NFS.

The rpool is going to be an SSD mirror, I don't know that I want to put 
swap on it. Technically, you can run illumos with no swap at all, but 
somehow that just feels wrong :). I suppose a box with 32G of memory is 
in better shape than one with 16G of ram and 16G of swap... The third 
option would be to put the swap volume on the data pool, but I'm not 
sure if there are any issues with swap on a raidz2 pool.

Any thoughts?

Thanks…