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

[Stanislav German-Evtushenko]

On Tue, Nov 18, 2014 at 9:45 PM, Dietmar Maurer <dietmar at proxmox.com> wrote:

> > So this is a DRBD bug?
> >
> > Lars doesn't see this as a bug. See also says that software raid behaves
> in the
> > same way
>
> IMHO, software RAID is also buggy unless you disable write cache inside
> drives. That is
> why we never recommend software raid..


That's also true. High-end hardware raid controllers (at least Dell ones)
do not use (disable) drive caches by default otherwise they wouldn't
survive power cut offs.
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