Chapter 2. DS3000 introduction 17
Draft Document for Review August 30, 2007 12:59 am 7065DS3KIntro.fm
EXP3000 will be 3.6 TB. You can attach up to three EXP3000 enclosures to a DS3000
storage subsystem, and this gives you maximum storage capacity of 14.4 TB.
The EXP3000 enclosures connect to the drive side SAS port of the DS3000 through a 3 Gbps
SAS interface.
Figure 2-8 EXP3000 rear view
The main components of an EXP3000 are one or two Environmental Services Modules
(ESM), two power supply modules and up to 12 SAS disk drives. ESMs and power supply
modules are in the rear of the enclosure (as shown in Figure 2-8), while the SAS drives are
installed in the front.
Let’s describe these components:
Environmental Services Module (ESM)
An ESM contains two SAS ports labeled
In and Out. Use the SAS In port to attach the
EXP3000 to the DS3000 subsystem or to the SAS Out port of another EXP3000. The SAS
Out port should be connected to a SAS In port of another EXP3000.
We show an example of the drive-side SAS cabling in Figure 2-9.
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