What is HACMP in AIX ?
High Availability Cluster Multi Processing, the term which mainly foucs on the availability of applications. This term means a lot when we speak about of "Fault Tolerant" FT. Fault Tolerant as the name implies, which has the ability to persist across any hardware failure like CPU, Memory, Interface and others using redundant components. By this model the fault tolerant machine is capable of providing high availability for an application at any given time.
But the draw back for "Fault Tolerant" methodology is, Since it relies of redundant components. The cost factor is high. This has lead to the development of "HA" High Availability. Which is capable of providing high availability for an application by sharing of application across multiple nodes.
So how is differs from FT,
FT : High Cost Involved
HA: Compartively Less.
FT : No Down Time Required.
HA: Less Down Time Required.
High Availability Cluster Multi Processing, the term which mainly foucs on the availability of applications. This term means a lot when we speak about of "Fault Tolerant" FT. Fault Tolerant as the name implies, which has the ability to persist across any hardware failure like CPU, Memory, Interface and others using redundant components. By this model the fault tolerant machine is capable of providing high availability for an application at any given time.
But the draw back for "Fault Tolerant" methodology is, Since it relies of redundant components. The cost factor is high. This has lead to the development of "HA" High Availability. Which is capable of providing high availability for an application by sharing of application across multiple nodes.
So how is differs from FT,
FT : High Cost Involved
HA: Compartively Less.
FT : No Down Time Required.
HA: Less Down Time Required.
