Hardware components
4–43
Hitachi AMS 2100/2300 Storage System Hardware Guide
Disk drive configurations
, a high-density expansion unit has 48 drive slots
in drive section of the unit. Each slot can accommodate one SATA drive or
one drive filler. A drive filler is a solid but lightweight box that fills the slot
to maintain airflow within the high-density expansion unit if 48 drives are
not installed.
The following requirements for the high-density expansion unit apply
whether it is connected to an AMS 2100 or to an AMS 2300.
• All disk drives in this unit must be SATA drives.
• The Hitachi Data Systems minimum supported number of drives that
must be installed in the high-density expansion unit is two in Unit A
(slots 0-1) and two in Unit B (slots 0-1).
• After the minimum configuration is met, you can add up to two SATA
drives in each unit (which makes a RAID1 configuration) at a time, or
other combinations of drives as required to meet the RAID configurations
specified in Chapter 1.
Disk drive status LEDs
Each disk drive in the high-density expansion unit has an ALM (alarm) LED
on the top edge of the drive that shows the status of the disk drive. This
LED, shown in
, indicates the drive has failed.
With the drive cover removed, the drives and any lighted alarm LEDs are
visible, as shown in
.
Figure 4-36: Disk Drive Alarm LED
Table 4-36: Disk Drive
Alarm
LED
Item
Description
Alarm LED
(red)
Lights when the drive has a serious error.
Содержание AMS 2100
Страница 20: ...xx Preface Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 28: ...1 8 Introduction Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 50: ...1 30 Introduction Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 70: ...2 20 Functional and operational characteristics Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 116: ...4 44 Hardware components Hitachi AMS 2100 2300 Storage System Hardware Guide Figure 4 37 Alarm LED Locations ...
Страница 176: ...5 58 Installation Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 240: ...7 58 Configuration Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 278: ...10 6 Upgrading the firmware Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 282: ...11 4 Connection configuration restrictions Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 292: ...B 6 Regulatory information Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 304: ...Index 4 Hitachi AMS 2100 2300 Storage System Hardware Guide ...
Страница 305: ...Hitachi AMS 2100 2300 Storage System Hardware Guide ...