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