Additional Supporting HSS Daemons
The following supporting HSS daemons are started via the
systemctl start hss
command and log
to
/var/opt/cray/log/p0-default
on the SMW.
Table 8. Supporting HSS Daemons
Daemon
Description
Network Link Resiliency Daemon (
xtnlrd
)
Assists in manual and automatic hardware swap-in/
swap-out.
Event Monitor (
xtconsumer
)
Monitors and logs a configurable set of HSS events.
HSN Error Monitor (
xtnetwatch
)
Monitors HSN hardware for errors and logs them.
PCIe Link Error Monitor (
xtpcimon
)
Monitors for PCIe errors on various devices.
Hardware Error Logger (
xthwerrlogd
)
Monitors HW error log messages sent by the ANCC
and by nodes.
Node Console Logger (
xtconsole
)
Records node console output for every node in the
system.
3.4.7
High Speed Network (HSN) Management
The Cray HSN is composed of a number of custom components developed by Cray that provide high-bandwidth,
low-latency communication between all the compute processing elements of the system.
CAUTION:
xtbounce
should never be executed when nodes are up as this command will not gracefully
shut nodes down, and will cause them to crash. For more information about using this command, contact
Cray Support.
The HSN, which interconnects Aries chips, is configured by executing the
xtbounce
command to initialize the
Aries and HSN links, followed by the
rtr
command to calculate Aries routes.
Aries chips are auto-initialized by the
anccsysd
daemon when the dANC powers on, or whenever
anccsysd
restarts.
3.4.8
Create Direct Connection between the System Management Workstation (SMW) and
a Compute Node Console
The
xtcon
command is a console interface for system nodes. When it is executing, the
xtcon
command
provides a two-way connection to the console of any running node.
Connect SMW to node
r0s0c1n0
For this example, connect the SMW to the console of node
r0s0c1n0
:
smw:~>
# xtcon r0s0c1n0
--- Console for component r0s0c1n0. Use ^] to quit ---
CentOS release 6.5 (Final)
System Management
S3016
32
