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Compared to a traditional 3-tier architecture, Nutanix offers the following benefits:

Elimination of Siloed Storage:

Nutanix consolidates file, block, and object storage into a single platform, eliminating the need for separate, siloed storage systems. This simplifies management and improves resource utilization.

Avoidance of Generational Infrastructure Silos:

Nutanix's modern lifecycle management allows for seamless upgrades and expansions, avoiding the creation of generational silos. This ensures that the infrastructure remains up-to-date and can easily adapt to new technologies and requirements without disruptive forklift upgrades.

References:

Nutanix Bible​

1 x 480GB SSD:

For a hybrid cluster running both general-purpose VMs and an ERP application with a 500GB database, having a single 480GB SSD may lead to performance bottlenecks.

Nutanix best practices recommend using multiple SSDs for better I/O performance and redundancy​​​​.

2 x 1GB NIC:

The network interface cards (NICs) with only 1GB capacity each are insufficient for a production environment expected to handle significant data and application traffic.

Nutanix typically recommends 10GB NICs for adequate bandwidth and performance in such scenarios​​.

References:

Nutanix Community Edition Hardware Recommendations​​.

Nutanix Bible - Network and Storage Configuration Best Practices​​​​.

To size a new project that requires offsite backup using Veeam with an RPO of 24 hours and the ability to restore from the past 7 days of backups, while considering the data change rate of 1%, the SE should configure the Nutanix Sizer with the following parameters:

Backup Frequency: Since the required RPO is 24 hours, a daily backup schedule should be set.

Retention Policy: The retention policy should be set to retain daily backups for 7 days. This means that each backup is kept for a week before it is overwritten.

Data Change Rate: The data change rate is 1%. This information is crucial for sizing the backup storage. A 1% daily change rate indicates that each daily backup will be approximately 1% of the total data size.

Backup Target: Veeam should be configured to send backups to an offsite location. This can be an external storage repository or a cloud target.

Storage Calculation: Calculate the total backup storage requirement. If the total data size is D, then the daily backup size will be 0.01D. Over 7 days, the storage requirement will be approximately 0.07D.

The SE should enter these details into the Nutanix Sizer to ensure the configuration aligns with the prospect's requirements.

References:

Nutanix documentation on configuring backup policies and retention in Veeam.

Standard practices for backup retention and RPO configurations in data protection solutions.

Erasure Coding (EC) Analysis:

Erasure Coding is a Nutanix feature that provides efficient storage utilization by distributing data across multiple nodes.

Write-cold Data Requirement:

Write-cold duration: Data must be 'write-cold' for a specific period before Erasure Coding can begin optimization.

Duration: The required duration for data to be considered 'write-cold' is 7 days.

Explanation:

Erasure Coding optimizes storage usage by encoding data across nodes. However, this process is applied to data that is infrequently accessed or modified.

The 7-day period ensures that the data is stable and not subject to frequent changes, making it suitable for EC optimization.

Outcome:

After 7 days of being 'write-cold', the data will be eligible for Erasure Coding, thereby optimizing storage efficiency while maintaining data resiliency.

References: For more details on Erasure Coding and its operational requirements, refer to Nutanix documentation on storage optimization and EC processes.