Cluster for testing purpose

M

mmartincho

Renowned Member
Jul 14, 2012
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Hi!

I have single instances installations and I'm planning to deploy 3 nodes cluster using iscsi as external storage. My questiong is I have diferent hardware configuration on each node, (RAM, CPU and disk capacities)

Can I build the cluster with this type of servers?

Regards!
Martín
 
mmartincho said:
Hi!

I have single instances installations and I'm planning to deploy 3 nodes cluster using iscsi as external storage. My questiong is I have diferent hardware configuration on each node, (RAM, CPU and disk capacities)

Can I build the cluster with this type of servers?

Regards!
Martín
Click to expand...
Hi Martin,
what kind of "type of servers"?

But yes, you can use different hardware if the have enough resources.

Udo
 
Hi Martin!

Definitely no problem in having cluster members that are different (aka not-identical). I am uncertain, how live migration copes when (if) you moved from <>To dissimilar CPU type (ie, AMD on box1 and Intel on box2?) but maybe someone else knows answer; or possibly you have not such difference in mind. (ie, all systems are intel CPU, for example 2 are 'bigger' i7 with 32gb ram each and 1 is 'smaller' i3 with 8gb ram. In such a scenario the i3 system plays important role as quorum / even if it does not host lots of VMs.

Since proxmox is debian-under-hood it will run on very diverse hardware. Main constraint is to limit your performance expectations to match the hardware upon which you have deployed it. (ie, gig-ether iSCSI will be a performance bottleneck, {if compared to non-shared local SAS raid disk storage for example} -- for one example, but it will be quite functional I am sure. NFS might be simpler and some scenarios slightly better performance .. sometimes is worth testing ..)

Tim
 
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