3-Nodes MC/SG Cluster

[Jean Mesquida_1]

Hi,

I have some architecture questions about the following configuration involving 3 nodes on a single cluster :

Node 1 name : A
Node 2 name : B
Node 3 name : C

Is it possible to have A and B sharing one FC disk array, and B and C sharing an SCSI one ?

2 packages will be created : one will be on A and B, the other one on B and C.

I have 3 LAN attachments.
I do not plan to have cluster locks.
As there is no VG shared by all nodes, is this configuration supported and able to work ?

Thanks a lot for your help !
JM

[melvyn burnard · Accepted solution]

This looks an acceptable configuration, as the criteria for a package to switch between nodes is that the discs must be sen by all nodes that are to run the package.
Therefore if A & B will run pkg x, but node C will not, only A&B have to have the discs connected.
And yes, due to the configuuration, no cluster lock disc is possible, but it is not mandatory to have one for a 3 node cluster.