clustering with a shared disk
i was arguing with some fellows if the following is a good practice for a cluster :
1. 2 application servers accessing a shared disk.
2. load balancing for the 2 servers done through DNS ( not so clear how !).
but the main point is #1, in my opinion - i'm not a cluster'aholic , i know very little - i think that the bottleneck this way is moving from the NIC and server resources to the disk which is even worse as it acts as a single dangerous point of failure.
I'm waiting to hear some other opinions on this matter.