To verify the status, presence, and admission of a specific data pack, the correct command is puredrive list --pack CH0.BAY10.
In the context of FlashArray geometry, a "Write Group" (RAID set) is formed by combining DirectFlash Modules. A "Wide Write Group" typically consists of 10 modules (a full data pack). When an engineer installs a standard 10-pack of drives (Bays 10-19), verifying that all 10 drives are successfully recognized and "admitted" confirms that the system has formed the intended wide write group.
The puredrive list command with the --pack argument filters the output to show only the drives in that specific pack. The engineer checks that all 10 drives are listed and their status is "healthy" or "admitted". If fewer drives were admitted (e.g., only 5), it would indicate a "narrow" write group or a hardware issue.
Option A (find_drive.py) is a utility script used to physically locate a drive by blinking its LED, not to check logical RAID configuration.
Option B (puredb list drives) is an internal engineering command (puredb) that is generally not intended for standard field verification and may require root-level access. The puredrive command is the standard CLI tool for this validation.