Am 09.10.24 um 22:08 schrieb Roland:
as proxmox hypervisor does not offer mdadm software raid at installation
time because of this bugticket
"MD RAID or DRBD can be broken from userspace when using O_DIRECT"
https://bugzilla.kernel.org/show_bug.cgi?id=99171
ps:
also see "qemu cache=none should not be used with mdadm"
https://bugzilla.proxmox.com/show_bug.cgi?id=5235
that all sounds like terrible nosense
if "Yes. O_DIRECT is really fundamentally broken. There's just no way to
fix it sanely. Except by teaching people not to use it, and making the
normal paths fast enough" it has to go away
it's not acceptable that userspace can break the integrity of the
underlying RAID - period
