Is there a command-line way to check if a system has two power
supplies and, if so, their current state?
Background: a client has several systems at a hosting provider. We
would like to believe that the systems have dual power supplies, but
would like a way of verifying. Here's the output from a dmidecode:
# dmidecode --type 39
# dmidecode 2.11
SMBIOS 2.7 present.
Handle 0x0095, DMI type 39, 22 bytes
System Power Supply
Power Unit Group: 1
Location: To Be Filled By O.E.M.
Name: To Be Filled By O.E.M.
Manufacturer: To Be Filled By O.E.M.
Serial Number: To Be Filled By O.E.M.
Asset Tag: To Be Filled By O.E.M.
Model Part Number: To Be Filled By O.E.M.
Revision: To Be Filled By O.E.M.
Max Power Capacity: Unknown
Status: Present, OK
Type: Switching
Input Voltage Range Switching: Auto-switch
Plugged: Yes
Hot Replaceable: No
Input Voltage Probe Handle: 0x0091
Cooling Device Handle: 0x0093
Input Current Probe Handle: 0x0094
To me, that output would suggest there is only a single power supply because:
1) there is only one set of output, when I would have expected two.
2) "Hot Replaceable: No" -- I would expect this to be "Yes" if there were two.
Unfortunately, the systems that I know have dual power supplies do not
return anything useful:
# dmidecode --type 39
# dmidecode 2.12
SMBIOS 2.7 present.
Regards,
- Robert
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