
Module Status Values
B.4 Link Status ValuesEach switch (see AppendixA (CompaqAlphaServer SC Interconnect Terms)) has an
entry in the elites table. Each switch has eight links and the state of each of these
links is recorded in the linkstate field of the elites table. Thefield holds eight
characters, onefor each link. Validvalues for the characters are as shown in Table B.2.
See also Section A.2.
TableB.2: LinkStatus Values
State Character Description
Connected CNormal working state
Reset RLink is in reset
Acking ALink generates an ACK for all transactions
Nacking NLink generates an NACK for all transactions
Not connected _Link is not connected
Unknown U swmgrcannot determine link state.
B.5 Module Status ValuesModule status information for nodes and the switch network is held in the modules
table. The estatus field stores the node’s operating environment; specifically,it shows
whether the cooling fans and power supply units (PSUs) are working correctly and
whether any ofthe other components are overheating.
Changes in environmentstatus arerecorded in the events table; entries are keyed by
class=module type=Xwhere Xis temperature,temphigh,psu, or fan. The valid
strings and their meaning are shown in Table B.3.
TableB.3: ModuleStatus Values
Status Description
ok Fans,PSUs and temperatureok
fan failure A fan has failed
psu failure A power supply unit has failed
node hot The enclosure is too hot
cpu hot ACPU is too hot
psu hot A power supply unit is too hot
If the environment status, estatus, is recorded as ok, the environment field of the
modules table contains temperature readings from the CPU,PSU and enclosure. If a
RMS Status Values B-3