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

[Dietmar Maurer]

> > Beside, we do not have a storage type for DRBD, so we simply cannot detect
> this situation automatically. So I guess you need to set that manually.
> Problem is that this is always forgotten to be configured by other admins when
> creating a new machine, so in some weeks after I check all machines for being
> configured properly we start to receive out-of-sync notifications again. 

Maybe we can add a 'cache-mode' setting to the storage configuration? That we we can
set the default mode for each storage.

> Another problem is that many people who does such installations are not really aware of
> the issue and don't do integrity checks and finally they got to the situation when
> a VM crashes on migration doesn't start after DRBD resync.

Not sure if/how we can solve that. One way would be to improve wiki documentation?