Prerequisites - Hitachi AMS 2100 Hardware Manual

Prerequisites

Please read this entire section before beginning any work on an
array.
In addition to these prerequisites, also see the safety instructions at the
beginning of
CAUTION! Back up your data before adding or replacing hardware
components. If a part is installed incorrectly, it may be possible that data
can be lost. Hitachi Data Systems strongly recommends that you back up
your data to a remote array before beginning hardware upgrades or
replacements.
CAUTION! When adding or replacing a disk drive with the array
power on, be sure to complete the installation within ten minutes
after removing the dummy disk drive. An open slot in the array can
let enough cooling air out of the array that after ten minutes, it can
overheat and shut down.
Before adding or replacing any hardware components in either the base unit
or the expansion unit, protect your data from accidental loss. The following
paragraphs provide important information that can help protect your array
from accidental loss of data.
1. The procedure to add an optional component varies depending on the
component being added and the location where the component is to be
installed.
2. Before adding, removing, or replacing a part, read the entire
procedure. If you have any questions about the procedure, please call
Hitachi Data Systems Technical Support before starting the procedure.
It is a lot easier, faster, and less costly than fixing something afterward.
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. Perform 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 firmware is being
downloaded. Depending on the LAN connection and traffic on the LAN,
this could take from 30 tor 50 minutes. Wait at least 30 seconds after
the Ready LED lights steadily before making any changes to the
hardware.
9–2
Chapter 5, Installation.
Upgrading the hardware
Hitachi AMS 2100/2300 Storage System Hardware Guide