Hitachi AMS 2100, Hardware Manual

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Upgrading the hardware
9–3
Hitachi AMS 2100/2300 Storage System Hardware Guide
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 ENC firmware is being
updated (flashed). 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.
7. If you remove a SAS self-encrypting drives (SED) from an array, a Data
At Rest Encryption feature locks the drive, completely preventing access
to its contents. Data cannot be accessed until the drive is placed back
into the original array by IT administration and unlocked. If the drive is
installed in a different array, the drive becomes unusable and requires
intervention by Technical Support. To avoid this situation, always check
that you are installing the correct SAS (SED) drive into the appropriate
array.
Adding a disk drive
Before beginning the procedure to add or remove a disk drive, ensure the
the prerequisites on the previous page have been met.
Locations and numbers of disk drives
As shown in Figure 9-1 , the disk drive numbering in an array is #0 to #14
from the left to right viewed from the front of the array. The same
numbering applies to both the base unit and the expansion unit.
Figure 9-1: Base and Expansion Unit Disk Drive Numbering
NOTE: Disk drive slots use the same numbers whether they contain a
drive or not.