VMware vSAN

Cost Savings: Several users have mentioned that using VMware vSAN allowed them to save costs in terms of storage and managed services. They were able to manage all aspects of their workload in one interface, reducing the need for rack space and improving business agility.

Flexibility and Data Accessibility: Users appreciated the ability to write data anywhere and access it anytime, even in the event of hardware failure. This feature provided them with flexibility and uninterrupted access to their data, contributing to a seamless user experience.

Simplified Management: Many users highlighted the ease of managing VMware vSAN from a single management platform, specifically mentioning vCenter. They found it convenient that VMware runs VSAN certification programs to ensure OEMs sell validated nodes, making it easier for customers to select appropriate certified ready nodes. This unified approach simplified infrastructure management and reduced complexity for users.

Difficult Disk Management: Some users have found it challenging to manage disks in the vSAN cluster, citing issues with finding unused/unassigned hard drives and balancing disk usage. They suggest a more user-friendly interface and guided configuration to simplify the process.

Limited Datastore Choice: Several reviewers express dissatisfaction with vSAN's limitation of having a single datastore for the entire cluster, which restricts their ability to isolate or group virtual machines as desired. This has been seen as a drawback by some users.

Compatibility Concerns: Many users mention compatibility issues with older servers and find it difficult to meet all hardware requirements. They believe that an expanded Hardware Compatibility List - HCL would be helpful in ensuring more compatibility and avoiding any potential complications during implementation.

Users of VMware vSAN have made several recommendations based on their experiences with the product. First, they suggest considering building your own VSANS (Ready Nodes) instead of using VXRails. This recommendation comes from users who have found that building their own VSANS allows for more customization and flexibility in their vSAN deployments. Second, users advise finding an easy algorithm to reduce CPU overhead and improve disk read and write cache. Some users have suggested that optimizing the CPU overhead and improving disk performance could enhance the overall efficiency of vSAN. Lastly, users recommend talking to support to confirm compatibility with the operating system requirements. They advise reaching out to support to ensure that vSAN is compatible with the specific operating system requirements of their environment. These recommendations provide valuable insights for users looking to make the most of VMware vSAN, allowing them to explore alternative deployment options, optimize performance, and ensure compatibility with their existing infrastructure.