- MDC: metadata control software that controls the status of distributed clusters. The system initially deploys at least three MDC modules, and adds a resource pool to automatically start or specify an MDC for the resource pool. Multiple MDC uses Zookeeper to elect a primary MDC. The primary MDC monitors other MDC and restarts the MDC or assigns a managed MDC to the resource pool if the MDC fails. When the primary MDC fails, a new primary MDC is elected.
- OSD: an object storage device service that performs specific I/O operations. MDC monitors the status of OSD in real time. When the primary OSD where the specified Partition is located fails, the storage service automatically switches to the standby OSD in real time to ensure business continuity.
distributed storage MDC and OSD 
12
Original
GaodeGe! 2025-01-31 23:19 published
in China
Recommended
- Debunking Five Common Misconceptions About Virtualization
- Huawei storage sword in commercial market
- Uncover the five lies and truth of "Virtualization is dead"
- FusionCube super-integrates "Real One-Click" to make IT simple and powerful
- Huawei FusionCube wins the Best recommend of DCIG enterprise hyper-integration infrastructure
- VMware is being "cleaned up" by Botong. Can we be "arrogant?
- after the price of VMware rises, if VMware is not used, what are the alternatives?
- Technology disclosure: overview of data center virtualization