A couple of comments.
Take a look at http://whiteboxswitch.com/ or do a general search for
white box switches.
Migration will work so long as the storage is consistent between the two
KVM hosts.
If there is buffering or caching going on you could have problems.
Something like GFS or NFS will work.
I have used DRBD to setup a simple 2 node system and migration works
quite nicely.
Take a look at ProxMox or some of the postings on alteeve.ca.
A good place to start would be
https://alteeve.ca/w/2-Node_Red_Hat_KVM_Cluster_Tutorial
On 07/06/2015 07:58 AM, Miguel Barbosa Gonçalves wrote:
Hi!
I am building a KVM cluster that needs VM live migration.
My shared storage as well as the KVM hosts will be running
CentOS.
Because 10 Gbps Ethernet switches are very expensive at the
moment I will connect the KVM hosts to the storage by
cross-over cables and create private networks for each
connection (10.0.0.0/30 and 10.0.0.4/30).
The following diagram shows the topology
Management Management Management
VLAN VLAN VLAN
| | |
+----+-----+ 10 Gbps +----+----+ 10 Gbps +----+-----+
| KVM Host |-----------| Storage |-----------| KVM Host |
+----+-----+ +----+----+ +----+-----+
| | |
Public Public Public
VLAN VLAN VLAN
My question is: will live migration work in this configuration
since the storage will have 2 different IP addresses
(10.0.0.1 and 10.0.0.5) in 2 different networks even though
it is the same storage?
Thanks!
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