[pve-devel] Default cache mode for VM hard drives

[Dietmar Maurer]

> Swap space is inititialized on startup using 'swapon', and AFAIK there is no
> complex format which gets damaged if data is not synced? At least I never
> observed problems with swap after server crash
> 
> I can think about two cases at least when this is critical:
> 1) Live migration - if swap is corrupted live migration will fail.

AFAIK kvm live migration issues a disk flush, so that should not be a problem?