Product specifications

4 – Fast Fabric TUI Menu
D000006-000 Rev A 4-9
Q
4.2.3
Summary of Fabric Components
(All) This will run the fabric_info command to provide a brief summary of the
counts of components in the fabric including how many switch chips, hosts, and
links are in the fabric. It will also indicate if any 1x links were found (that could
indicate a poorly seated or bad cable). Review the results against the expected
configuration of the cluster.
NOTE: The link count includes some internal links within the switch boxes. This
means that the count displayed will be greater than the actual number of
cables.
4.2.4
Show Status of Host IB Ports
(Host) This will run the showallports command to allow the state and symbol error
counts of all host ports to be manually reviewed.
(All) Instead it is recommended to run:
iba_report -i 10 -o errors -o slowlinks
on the IB Management node. This will check all the ports in the fabric for any links
which have high error rates or are running at a lower speed than expected. Any
such identified links should be diagnosed and corrected.
4.2.5
Verify Hosts see each other
(Host) This will run the ibtest sacache command to verify that each host can
see all the others via queries to the Subnet Administrator and the SA replica on
each host has been fully populated.
4.2.6
Verify Hosts ping via IPoIB
(Host) This will run the ibtest ipoibping command to verify that IPoIB is
properly configured and running on all the hosts. This is accomplished via the IB
management node pinging each host via IPoIB.
4.2.7
Refresh SSH Known Hosts
(Linux) This will run the setup_ssh -C command to refresh the SSH known hosts
list on this server for the IPoIB and Management Networks. This may be used to
update security for this host if hosts are replaced, reinstalled, renamed, or repaired.