Questions re swap-on-zfs

Beeblebrox zaphod at berentweb.com
Fri Nov 29 21:40:03 UTC 2013


Thank you.

Just to be nit-picking over the details,
* A zpool dataset hosting swap may lock-up.
* As work-around, we want to enable SSD-based 1G partition as fall-back swap
(only last resort)
* My system DOES suffer from lockups (when poudriere is compiling), but the
spindle-HDD hosted zpool/swap is not why (swap space usage barely maxes at
15%). The lockup is probably due to CPU (unlocked core).
* Does a /dev/gconcat device, (zpool first, SSD partition as number 2)
function as designed (and I mean does the SSD partition work as fallback),
if and should the primary swap on zpool/swap have a lockup for some reason.

Difficult to call IMHO.
Thanks again.



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