This read-only enumerated object reports the outcome of the switch's most recent flash erase/write operation during a firmware or configuration update, ranging from in-progress through success, config-error, flash-error, or both errors combined. An admin performing a firmware upgrade watches this field to confirm the write completed successfully before rebooting, since attempting to boot into a failed or partial write could leave the switch unusable. For example, if kxswdisWriteStatus reports flash-error(4) after an upgrade attempt, the admin would know not to reboot into that image and would instead retry the download rather than risk a boot failure.