Product manual

VTrak J830s, J630s Product Manual

Cascading DAS Connection

To setup a cascading DAS connection:

1. Connect the SAS HBA card in the Host PC to the SAS IN port (with the circle

icon) on the first VTrak.

See Figure 12. Use a SFF-8088 4X to 4X external SAS cable (supplied with

the VTrak).

2. Connect the SAS OUT port (with the diamond icon) on the same I/O module

of the first VTrak to the SAS IN port (with the circle icon) on the second

VTrak.

Be sure to connect circle icon to diamond icon or vice versa.

You can cascade up to four VTrak units in this manner.

You can mix J830s and J630s units as well as J610s and J310s units in the

same cascade. Note that Jx10s are 3Gb units and might reduce data

throughput.

Figure 12. A cascaded DAS connection

115200 8 N 1 115200 8 N 1

SAS HBA Card

SAS OUT diamond port

SAS IN circle port

SFF-8088 external

4X to 4X SAS cable

VTrak J630s

Host PC or Server

SAS OUT diamond port

SAS IN circle port

VTrak J630s

SAS IN circle port