The command purehw list --all is the correct CLI instruction to view the comprehensive status of all hardware components, including the NVRAM modules .
Command Scope: While purehw list provides a general hardware summary, the --all flag (or specifying --type nvram) ensures that granular details about the NVRAM modules—such as their presence, health status, and firmware/update status—are displayed.
NVRAM Context: In FlashArray models that utilize dedicated NVRAM modules (like the FA-400, //M, or specific //X configurations), these components are critical for write acknowledgement. During an upgrade or installation, verification that these modules are "healthy" and "idle" (not destaging) is mandatory.
Incorrect Options:
purearray list (Option A) displays high-level array attributes like the array name, ID, and overall OS version, but not component-level hardware status.
puredrive list (Option B) is specifically for managing the storage media (SSDs/DirectFlash Modules) and does not report on the non-volatile RAM cache modules housed in the controller or chassis.
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