CHAPTER 2 Hardware Configuration
2.9 DU (Disk unit)
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CA92344-0534-07
2.9.1 DU specifications
This section shows the conceptual diagram and specifications of the DU.
FIGURE 2.23 DU conceptual diagram
TABLE 2.13 DU specifications
Item
Specifications
PCI Express slot
PCI Express Gen2, 4 Lane slot ×2
Main Board
PCI Express slot and SGPIO Controller for mounting the
SAS RAID controller card
HDD slot
2.5 inch SAS/SATA-HDD slot×4
HDD hot plug
Supported (*1)
Enclosure Management
SGPIO Present monitoring and Fault LED control by
SGPIO controller (each HDD)
Supported RAID level
0, 1, 5, 6, 10, 1E (*2)
LED
Power, Attention, Access LED (for each HDD), Alarm
LED (each HDD)
Dimension (mm) (except protrusions)
Width 45 x Depth 526 x Height 215
Weight (kg) (without HDD/SSD)
2.9 kg
*1: Hot plug of HDD is enabled only when HDD is duplicated by the RAID.
*2: Usable RAID levels are dependent on the number of SAS RAID controller cards and the number of HDDs
mounted in the DU.