[ddorian43]

Can't this be disabled somehow for internal servers only ? Say disabling it on db servers but keep it on api/web servers.

[tomchuk]

They're doing this so you (or other shared tenants) can't read your VMs or the host's memory (and vice versa).

[ddorian43]

What about on dedicated servers ? Is there a config that can be done ?

[rconti]

No, and that's not the way the bug works.

[Kudos]

They're rebooting to patch the host, not your VM.

[stephengillie]

This is necessary because AWS does not support hot-migration of clients. To reboot the host, instead of pushing clients off to other hosts, they have to reboot all clients with the host.