Hitachi AMS 2000 Series Service Manual page 109

3. Determine whether the work must be done with the array power on or
off.
• The power on condition refers only to the array power and does
not consider whether the host power is turned on or off.
• The power off condition refers only to the array power and does
not consider whether the host power is turned on or off.
4. When adding an optional component, change the settings of the array
using a management console connected via a LAN. Do the following
before starting the addition of an optional component:
• Set up a management console on which Navigator 2 is installed.
• Determine whether the array is operable via a LAN.
5. Ready LED Status. Do not add or replace any hardware components
while the green Ready LED on the front of the base unit is blinking at
high speed. When it is blinking at high-speed, the ENC firmware is being
downloaded. Depending on the LAN connection and traffic on the LAN,
this could take from 30 tor 50 minutes on an AMS 2100/2300 or from
40 to 60 minutes on an AMS 2500. Wait at least 30 seconds after the
Ready LED lights steadily before making any changes to the hardware.
6. Warning LED Status. Do not add or replace any hardware components
while the orange Warning LED on the front of the base unit is blinking at
high speed. When it is blinking at high-speed, the flash program within
the firmware is being updated. This could take from 30 to 85 minutes.
Wait at least 30 seconds after the Warning LED goes out and the Ready
LED lights steadily before making any changes to the hardware.
If you replace the control unit, you must also upgrade the firmware on that
unit. See Chapter 10, Upgrading the Firmware in the Hitachi AMS 2100/
2300 Users Guide, for instructions to upgrade the firmware.
Hitachi AMS 2000 Family Storage System Service Guide
Replacing parts
4–3