key := vars["key"]

	var subSys, target string
	{
		ws := strings.SplitN(key, madmin.SubSystemSeparator, 2)
		subSys = ws[0]
		if len(ws) == 2 {
			if ws[1] == "" {
				target = madmin.Default
			} else {
				target = ws[1]
			}
		}
	}

	subSysConfigs, err := cfg.GetSubsysInfo(subSys, target, true)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}