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VTrak E-Class Quick Start Guide
20
Configuring JBOD Expansion
To expand the number of disk drives:
1. On the E310s controller, connect the SAS expansion port (a subtractive-
routed port) to the CN1 (a table-routed port) on one of the I/O modules of the
first J300s unit. See Figure 19.
2. Connect CN3 (a subtractive-routed port) on the first J300s unit to CN1 on
one of the I/O modules of the next J300s unit.
3. Connect the remaining J300s units in the same manner.
Figure 19. VTrak E310s JBOD data connections
You can expand a SAN system with no single point of failure. See Figure 20.
Such an arrangement requires:
• Two SAS HBA cards in each Host PC or Server
• A network switch (not shown)
• A network interface card (NIC) in each Host PC or Server
• One to four VTrak J300s JBOD subsystems
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