Newer firmware for the disks present is placed in the /etc/disk_fw directory. Newer firmware for the disks present is placed in the /etc/disk_fw directory Newer firmware for disks present is placed in...Newer firmware for the disks present is placed in the /etc/disk_fw directory. Newer firmware for the disks present is placed in the /etc/disk_fw directory Newer firmware for disks present is placed in the /etc/disk_fw directory Newer firmware for the shelf modules present is placed in the /etc/shelf_fw directory. Newer firmware for the ACP is placed in the /etc/acpp_fw directory. For complete information on all the firmware updates, see the Upgrade Guide for the version of Data ONTAP being used.