When the event router on the SMW receives an event from either a connected agent or from another event router
in the hierarchy, the event is logged and then processed. HSS CLI commands use events to query and control
HSS daemons.
Node ID (NID) Manager
The
nid_mgr
generates a list of mapping between node logical IDs and physical Network Interface Controller
(NIC) IDs and distributes this information to the blade controllers. Along with the ability to assign NIDs
automatically, the
nid_mgr
supports a mechanism that allows an administrator to control the NID assignment;
this is useful for handling unique configurations. Administrator-controlled NID assignment is accomplished through
the NID assignment file,
nids.ini
.
CAUTION: The
nids.ini
file can have a major impact on the functionality of a Cray system and should
only be used or modified at the recommendation of Cray support personnel. Setting up this file incorrectly
can make the Cray system unroutable.
Typically after a NID mapping is defined for a system, this mapping is used until some major event occurs, such
as a hardware configuration change. This may require the NID mapping to change, depending on the nature of
the configuration change. Adding additional racks does not typically result in a new mapping.
Since the operating system always uses NIDs, HSS converts these to NIC IDs when sending them on to the HSS
network and converts them to NIDs when forwarding events from HSS network to a node.
3.4.5
Hardware Supervisory System (HSS) Administration and Diagnostic Commands
Supported on Urika-GX
The following HSS commands are supported on Urika
®
-GX and need to be invoked from the System
Management Workstation (SMW) to control HSS operations. Usage information for all of these commands can be
viewed using the
-h
option, man pages are available where noted.
Table 3. HSS Administration Commands
Command
Description
capmc
Cray advanced power monitoring and control utility. See
the
capmc(8)
man page for more information.
hss_make_default_initrd.athena.rc
Creates the Rack Controller (RC) image.
hss_make_default_initrd.athena.danc
Creates the dual Aries Network Card (dANC) image.
hssbootlink
Links a Linux kernel
bzImage
file, an
initramfs
file,
and a
parameters
file so that they can be booted on a
Controller by using PXE boot on an SMW.
hssclone
Clones the master image directory.
hssds_init
Creates the Hardware Supervisory System (HSS) data
store; ensures the proper HSS data store user
credentials are created and that the data store is ready
for operation.
hsspackage
Facilitates creation of controller boot images.
make_node_inventory
Generates an inventory of Urika-GX nodes.
System Management
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