SG0-001 · Question #517
The same LUN can be mapped to multiple servers only if which of the following conditions are satisfied?
The correct answer is B. File system on the LUN is cluster aware. To map the same LUN to multiple servers without data corruption, the file system on that LUN must be cluster-aware to manage coordinated access.
Question
The same LUN can be mapped to multiple servers only if which of the following conditions are satisfied?
Options
- ABoth servers are running the same operating system
- BFile system on the LUN is cluster aware
- CMore bandwidth is required to satisfy customer requirements
- DMultiple servers require access to the same data
How the community answered
(47 responses)- A2% (1)
- B94% (44)
- D4% (2)
Why each option
To map the same LUN to multiple servers without data corruption, the file system on that LUN must be cluster-aware to manage coordinated access.
The operating system itself does not determine multi-server LUN access; rather, it's the file system and clustering software that manage shared storage.
A cluster-aware file system, such as Microsoft Cluster Shared Volume (CSV) or GFS2/OCFS2 for Linux, is essential when multiple servers need simultaneous read/write access to the same LUN. This type of file system provides a mechanism for the servers to coordinate access, preventing data corruption and ensuring data integrity across the cluster nodes.
Bandwidth requirements are a separate consideration for storage network design and do not directly enable or disable multi-server LUN mapping.
While multiple servers may require access to the same data, merely requiring access doesn't make it technically possible or safe without a cluster-aware file system.
Concept tested: Shared storage, LUN mapping, cluster-aware file systems
Source: https://learn.microsoft.com/en-us/windows-server/failover-clustering/failover-cluster-architecture#cluster-shared-volumes
Topics
Community Discussion
No community discussion yet for this question.