无共享架构和共享磁盘架构的区别

1. 无共享架构：
无共享架构是一种用于分布式计算的架构，其中每个节点都是独立的，不同的节点通过网络互连。每个节点都由处理器、主存和磁盘组成。这种架构的主要动机是消除节点之间的争用。这里的节点不共享内存或存储。磁盘具有无法共享的单个节点。它在高容量和读写环境中有效工作。

2. 共享磁盘架构：
共享磁盘架构是一种用于分布式计算的架构，其中节点共享相同的磁盘设备，但每个节点都有自己的私有内存。磁盘具有活动节点，在发生任何故障时共享内存。在这种架构中，所有集群节点都可以访问磁盘。这种架构可以快速适应不断变化的工作负载。它使用稳健的优化技术。

无共享架构和共享磁盘架构的区别：

S.NO.	Shared Nothing Architecture	Shared Disk Architecture
1.	In shared nothing architecture the nodes do not share memory or storage.	In shared disk architecture the nodes share memory as well as the storage..
2.	Here the disks have individual nodes which cannot be shared.	Here the disks have active nodes which are shared in case of failures.
3.	It has cheaper hardware as compared to shared disk architecture.	The hardware in shared disk is comparatively expensive.
4.	The data is strictly partitioned.	The data is not partitioned.
5.	It has fixed load balancing.	It has dynamic load balancing.
6.	Its advantage is that it has high availability.	Its advantage is that it has unlimited scalability.