On July 20, 2016 6:13:36 PM GMT+02:00, Jarry <mr.ja...@gmail.com> wrote: >Hi Gentoo-users, > >I'm going to build a small server with Xen-hypervisor with >Gentoo as dom0 (if it is possible). Comming from ESXi-world, >there is no choice (only true hw-raid is supported). > >But what about Linux? What's preffered way to go? Software-raid >(mdadm), or true hardware raid-controller? I have a few spares >(LSI-9271), these worked quite well with ESXi but I'm not sure >they are supported by Linux at all, and if there is actually >some way of monitoring controller-health... > >Concerning sw-raid, I have used it for quite some time, but >never with Xen (is it actually possible?). Moreover, grub-config >for Xen itself is somehow more complicated and sw-raid could add >extra complexity... > >So the question is simple. For Xen-server with Gentoo as dom0, >what do you recommend: sofware- or hardware-raid? > >Any other general tips concerning Xen (particularly with Gentoo >as dom0)? > >Jarry
Short answer: if Linux kernel supports it. It will work inside the dom0. Whatever is best depends in your requirements as linux sw raid can perform better that hw raid. But. For Xen ensure you dedicate at least 1 core exclusively to dom0. Don't have any of your guests (domU) access the same CPU core as your dom0 uses. As for grub complexity. I don't find this difficult. And even using UEFI boot for Xen isn't too difficult. This is based on using either grub1 or EFI. Not using grub2 on any of my Xen machines. -- Joost -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
