StorageScaler 6000 User Guide (96-00189-001 Rev B)
6
DataDirect Networks StorageScaler 6000 User Guide Rev B
1.3.3.1
SATA Interposer Card
The StorageScaler 6000 enclosure supports a SATA interposer card which allows simultaneous access
to the SATA HDD from both IO modules installed in the enclosure as well as the power cycling of a single
HDD through SES commands.
Note
A SATA interposer card is required to run SATA HDDs.
1.3.4 DEM Card
The StorageScaler 6000 enclosure contains eight (8) top-loadable, hot-swappable DEMs. The
DEM
s
(
Figure 1–8
) provide the SAS connectivity between the I/O module and the HDDs located within the
enclosure.
Note
The DEM is a serviceable PCB which may be replaced by trained personnel.
Each DEM connects to a single port of the HDD based on the location within the enclosure within which
it is installed (
Figure 1–9
). Each provides power control signals to each drive slot. It controls HDD identify/
service LEDs and monitors the status from partner DEM. Each pair of DEMs supports 15 drives; there
are 8 DEMs in a fully configured system.
Figure 1–7
Drive Carrier Module: Closed and Opened
LED
Figure 1–8
DEM
Locking Mechanism
USO
RESTRITO
