HP Blade cluster

[WilliamSmith11]

Hi ,
I have three blades enclousure, with 10 BL25 (5 cluster) attached to a EVA6000.

My question is

Will be a good practice to install one node of each cluster in separate enclousure?

There is some document where describe the best practice according with the cluster instalation in separate enclousure?

Whitch could be the problem installing the cluster members in the same enclousure?

Thank you

[Uwe Zessin]

> Whitch could be the problem installing the cluster members in the same enclousure?

Both members will be down when you have to swap the backplane. Or imagine you have to work on the cabinet's power cabeling.

[WilliamSmith11]

Uwe
There is some best practice document for Blade Severs?

W.S

[Klaas D. Eenkhoorn · Accepted solution]

William,

Common thinking would say 'try to share hardware and enviromental conditions as less as possible between clusternodes' (single point of failure) and create multiple ways for your cluster to access sources around your cluster. (redundancy)
So one piece of shared defect hardware can not bring down your custer and services.

I have no experience with blade hardware, but much more with MC/ServiceGuard and HP9000, so i would say put the clusternodes into different enclosures, dfferent mains and redundant powersupplies, redundant SAN Switches, redundant LAN switches etc.
Create the enviroment around your cluster so that there is no trivial part or condition that can bring your whole cluster down. Give your cluster an other option if something fails.

Think dissaster, be a little paranoid and keep it in budget (that's the hard part).

Succes !

Klaas Eenkhoorn