CHAPTER 2 Hardware Configuration
2.8 DU (Disk unit)
Connection source
IOU#0
IOU#1
IOU#2
IOU#3
2.8.1 DU specifications
This section shows the conceptual diagram and specifications of the DU.
PCI Express slot
Main Board
HDD slot
HDD hot plug
Enclosure Management
Supported RAID level
LED
Dimension (mm) (except protrusions)
TABLE 2.7 Connection of IOU with DU
Destination
DU#0-PCI Slot#0
DU#0-PCI Slot#1
DU#1-PCI Slot#0
DU#1-PCI Slot#1
FIGURE 2.16 DU conceptual diagram
TABLE 2.8 DU specifications
Item
Connection destination HDD
For two HDD per
SAS RAID controller card
HDD#2, #3 in DU#0
HDD#0, #1 in DU#0
HDD#2, #3 in DU#1
HDD#0, #1 in DU#1
Specifications
PCI Express Gen3, 4 Lane slot ×2
PCI Express slot and SGPIO Controller for mounting the
SAS RAID controller card
2.5 inch SAS/SATA-HDD slot×4
Supported (*1)
SGPIO Present monitoring and Fault LED control by
SGPIO controller (each HDD)
0, 1, 5, 6, 10 (*2)
Power, Attention, Access LED (for each HDD), Alarm
LED (each HDD)
Width 45 x Depth 526 x Height 215
42
For four HDD per
SAS RAID controller card
DU#0 HDD#0,#1,#2,#3
DU#0 HDD#0,#1,#2,#3
DU#1 HDD#0,#1,#2,#3
DU#1 HDD#0,#1,#2,#3
C122-B025-02EN