On 12/02/2010 10:53 PM, Benjamin Franz wrote:
> On 12/02/2010 12:58 PM, compdoc wrote:
>> [>]...live migration...?
>> _______________________________________________
>>
>> Interesting. Does live migration not work on ext3 or ext4?
>
> No. You need a shared filesystem.
Thats not true. You can do live kvm guest migration using RHEL/CentOS+RHCS+KVM using
lvm volumes to allocate/install kvm guests, for example. In this case you don't need
a shared filesystem ...
To accomplish a live kvm migration (or xen) you need a shared storage, not a
clustered filesystem or shared filesystem.
Which pretty much leaves you on either
> NFS or a clustered filesystem. RH has an example of using NFS - with a
> strong statement attached that you shouldn't do it that way in real life
> because the performance is poor.
I have two solaris zfs/nfs fileservers sharing storage to 5 ESXi servers and
performance is very very good ... And it is a production system ...
>
> Trying to mount ext3 or ext4 simultaneously from two machines (on say
> iSCSI) would just result in filesystem corruption.
This case isn't possible, because you can't mount an ext3 or ext4 filesystem at the
same time in two or more hosts ...
>
--
CL Martinez
carlopmart {at} gmail {d0t} com