{"description": "For each solid-state drive on the system, run:\n<pre> # echo 0 &gt; /sys/block/DRIVE/queue/add_random</pre>", "rationale": "In contrast to traditional electromechanical magnetic disks, containing\nspinning disks and / or movable read / write heads, the solid-state storage\ndevices (SSDs) do not contain moving / mechanical components. Therefore the\nI/O operation completion times are much more predictable for them.", "severity": "medium", "references": {}, "control_references": {}, "components": [], "identifiers": {}, "ocil_clause": null, "ocil": null, "oval_external_content": null, "fixtext": "", "checktext": "", "vuldiscussion": "", "srg_requirement": "", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {}, "platform": null, "platforms": [], "sce_metadata": {}, "inherited_platforms": ["machine"], "cpe_platform_names": [], "inherited_cpe_platform_names": ["machine"], "bash_conditional": null, "fixes": {}, "title": "Ensure Solid State Drives Do Not Contribute To Random-Number Entropy Pool", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/system/entropy/kernel_disable_entropy_contribution_for_solid_state_drives/rule.yml", "template": null}