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To tolerate up to 2 simultaneous disk failures across different nodes, the minimum number of nodes required is 5. This configuration ensures that there are enough nodes to maintain data redundancy and availability in the event of multiple disk failures, leveraging Nutanix's Resiliency Factor (RF) mechanisms ​​.

For highly active SQL workloads that write I/Os in 2 MB chunks to a vDisk, compression is the most suitable storage optimization technology. Compression works well with larger I/O sizes and can significantly reduce the storage footprint, providing better capacity optimization. This approach ensures that the large chunks of data are compressed efficiently, maximizing storage utilization and performance​​.

Prism Central can forward logs to an external syslog server, enhancing the monitoring and troubleshooting capabilities for administrators. The two log modules capable of forwarding messages are:

API Audit

The API Audit log module captures and forwards logs related to API access and actions within the Nutanix environment. This is crucial for security and audit purposes, allowing administrators to track API usage and detect any unauthorized or suspicious activities.

Flow

The Flow log module deals with network monitoring and security within the Nutanix environment. It captures and forwards logs related to network traffic, flow policies, and security events, helping administrators to monitor network activities and enforce security policies effectively.

These modules can be configured in Prism Central to ensure that relevant log data is sent to external syslog servers for centralized logging and analysis.

References:

Nutanix Prism Central Documentation

Nutanix Bible