[Samba] AD DC as KVM guest on file server host?

Андрей Петров petrov at solid-it.ru
Thu Dec 29 22:33:52 UTC 2016


29.12.2016 19:01, Filippe LeMarchand пишет:
> Is kvm I/O realy disadventage? I use samba file server as kvm guest
> (LVM storage pool) in some setups and disn't notice any problems.
> Sequential read/write speed isn't noticeably different from
> non-virtualized samba host. Did I miss something and should expect
> sudden trouble?
No you shouldn't. What I meant is: of allinsignificant disadvantage
aspects of virtualization I/O is the most significant.
In Miguel's case i just see no reason to move fileserver to guest if
it's already up and running in production.
In scenario i described earlier at first implementation I made 3 guests:
dc, fileserver and asterisk. I had problems sharing 2GB of RAM for all
of them.
ksm gives some relief, but it eats CPU time and  Turion II Neo N40L has
not much of it.
moving fileserever to host gave me resources to launch windows guest so
i can manage dsa.msc gpmc.msc and etc. without freezing host.
At first sight it may seem better to put a new service in virtual
environment, but in the end of the day you just got another host to
maintain (update, fsck, monitor and all this stuff)

-- 
C уважением,

Петров Андрей
----------------------
Email: petrov at solid-it.ru
tel: +79261813797



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