dmidecode를 이용한 시스템 상태확인

Sometime System Administrator would like to get more information about system H/W Configuration without system downtime, but linux operating system provide very useful command for linux system administrator.

 

1. dmidecode  type information 

Type   Information

----------------------------------------
          0   BIOS
          1   System
          2   Base Board
          3   Chassis
          4   Processor
          5   Memory Controller
          6   Memory Module
          7   Cache
          8   Port Connector
          9   System Slots
         10   On Board Devices
         11   OEM Strings
         12   System Configuration Options
         13   BIOS Language
         14   Group Associations
         15   System Event Log
         16   Physical Memory Array
         17   Memory Device
         18   32-bit Memory Error
         19   Memory Array Mapped Address
         20   Memory Device Mapped Address
         21   Built-in Pointing Device
         22   Portable Battery
         23   System Reset
         24   Hardware Security
         25   System Power Controls
         26   Voltage Probe
         27   Cooling Device
         28   Temperature Probe
         29   Electrical Current Probe
         30   Out-of-band Remote Access
         31   Boot Integrity Services
         32   System Boot
         33   64-bit Memory Error
         34   Management Device
         35   Management Device Component
         36   Management Device Threshold Data
         37   Memory Channel
         38   IPMI Device
         39   Power Supply

1. Follow the step if you want to check out of System BIOS Status 

[root@localhost] dmidecode --type 0 

dmidecode 2.8
SMBIOS 2.5 present.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
        Vendor: American Megatrends Inc.
        Version: V1.5B2
        Release Date: 10/31/2007
        Address: 0xF0000
        Runtime Size: 64 kB
        ROM Size: 1024 kB
        Characteristics:

2. if you want know about system memory status without system downtime it' very 

usefull command below so far

[root@localhost]dmidecode --type memory 

# dmidecode 2.8
SMBIOS 2.5 present.

Handle 0x0008, DMI type 5, 20 bytes
Memory Controller Information
        Error Detecting Method: 64-bit ECC
        Error Correcting Capabilities:
                None
        Supported Interleave: One-way Interleave
        Current Interleave: One-way Interleave
        Maximum Memory Module Size: 512 MB
        Maximum Total Memory Size: 1024 MB
        Supported Speeds:
                70 ns
                60 ns
        Supported Memory Types:
                SIMM
                DIMM
                SDRAM
        Memory Module Voltage: 3.3 V
        Associated Memory Slots: 2
                0x0009
                0x000A
        Enabled Error Correcting Capabilities:
                None