If a SAS connection is not valid, use this
information to verify the accuracy of the system cabling.
Verify that the SAS cabling is installed correctly by
checking that all SAS connections meet the following requirements.
- If a connection between the control enclosure and any host
in the system is not valid, check that the SAS cabling between the
control enclosures and the hosts conforms to the following SAS connectivity
rules.
System node SAS ports describes the SAS
ports on the system
nodes.
Table 1. System node
SAS ports| Onboard ports |
Lenovo Storage V3700 V2 |
Lenovo
Storage V3700 V2 XP |
Lenovo Storage V5030 or
|
|---|
| SAS host |
None |
Ports 2 and 3 |
None |
| SAS expansion |
Port 1 |
Port 1 |
Ports 1 and 2 |
- Lenovo
Storage V3700 V2 XP systems have
two on-board 12 GB SAS host ports at ports 2 and 3.
- Lenovo Storage V3700 V2 and Lenovo Storage V5030 systems support 12 Gbps SAS
host attachment but require installation of the optional SAS host interface adapter.
- The cables that are connected to the SAS host ports on each node canister in a
control enclosure must attach to a redundant port pair on a host.
- A connected port on the node canister must connect to a single port on a host. Cables that split
the connector out into separate physical connections are not supported.
- If a connection between the control enclosure and an expansion enclosure is not valid, ensure
that the SAS cabling conforms to the connectivity described in the SAS cabling guidelines topic.