Common Troubleshooting Scenarios − Power−On Related - Cisco UCS C-Series Troubleshooting Tips

Note: Diagnostics while designed to be safe to a running server should not be run with a load you cannot
afford to lose. Please ensure critical server applications are off−line before running diagnostics.
Diagnostics (CLI)
•
To view realtime CIMC Diagnostics status.
!−−− Enter diagnostics mode.
SanDiego# connect
debug−shell
diags
host
shell
SanDiego# connect diags
<CR>
SanDiego# connect diags
Diagnostics while designed to be safe to a running server should not
be run with a load you cannot afford to lose. Please ensure critical
server applications are off−line before running diagnostics.
Continue?[y|N]y
max_slots = 1
Registering hwmon commands
dsh_cmd_add: Adding hwmon 0x32658
Registering board commands
dsh_cmd_add: Adding sprom 0x129a8
dsh_cmd_add: Adding i2c 0x12a14
dsh_cmd_add: Adding spd 0x12db8
dsh_cmd_add: Adding tmp75 0x12c88
dsh_cmd_add: Adding clkbuf 0x132e4
dsh_cmd_add: Adding timhub 0x13368
dsh_cmd_add: Adding help 0x10778
dsh_cmd_add: Adding show 0x108f4
dsh_cmd_add: Adding run 0x108a0
dsh_cmd_add: Adding skip 0x10b2c
dsh_cmd_add: Adding unskip 0x10b64
dsh_cmd_add: Adding results 0x10b9c
dsh_cmd_add: Adding sp 0x10ce8
dsh_cmd_add: Adding reg 0x10db0
dsh_cmd_add: Adding version 0x10de8
dsh_cmd_add: Adding err 0x10e24
DIAG >
DIAG > q
SanDiego#
Common Troubleshooting Scenarios − Power−On Related
•
No Standby Power to UCS C250 M1 Extended−Memory Rack−Mount Server
1. Check that the AC power cord is ok.
2. Failure in Power Supply Unit.
•
Server Host does not power up
1. Check front I/O board connection.
2. Check Power Sequencer fault LEDs.
3. Power Supply unit failure (PS Failure LED blinking).
CIMC Diags Shell