Stellar Cyber Requires Full SSD Disks
To maintain system integrity and guarantee consistent performance, the Stellar Cyber DP only supports full-SSD deployments. This includes all of the following components:
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                                                    Internal system storage 
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                                                    External or network-attached storage (for example, SAN/NAS solutions) 
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                                                    Any secondary storage tiers involved in critical workflows 
The use of spinning-disk-based storage (HDD), hybrid drives (SSHD), or any storage appliance containing non-SSD media is not supported and must be strictly avoided.
Issues Caused by Non-SSD Disks
Hybrid or HDD-based solutions, even when used in high-speed caching appliances, do not meet the minimum performance thresholds required by Stellar Cyber.
Systems relying on non-SSD storage have been observed to suffer from rapid cache saturation, resulting in the following conditions:
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                                                    Noticeable performance degradation 
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                                                    Increased system response times 
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                                                    Reduced reliability under load 
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                                                    Potential impact to user operations and service delivery 
All Stellar Cyber deployments must adhere to this SSD-only policy in order to qualify for performance guarantees and technical support.
