Redundant Cascading Das Connection - Promise Technology VTrak series Kurzanleitung

VTrak J830s, J630s Quick Start Guide
The diagram on page 14 shows the VTrak J630s. Connections with the J830s are
exactly the same.
This completes data and management connections. Go to "Task 5: Setting Up
Serial Cable Connections" on page 17.

Redundant Cascading DAS Connection

To setup a redundant cascading DAS connection:
1. Connect the SAS HBA card in the first Host PC to the SAS IN port (with the
circle icon) on the first VTrak.
See page 16, Figure 13. 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.
3. Connect the SAS HBA card in the second Host PC to the SAS IN port (with
the circle icon) to the other I/O module on the first VTrak.
4. 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) of the other I/O
module on the second VTrak.
5. Connect the remaining VTraks in the same manner.
Be sure to connect circle icon to diamond icon or vice versa.
Do not cross-connect the I/O modules. Maintain a separate cascade
configuration from each Host PC or Server to the last VTrak. See page 16,
Figure 13.
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.
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