How To Wire Alpine Swr1242d

ball dmidecode: o View settings of memory DIMMs in your ESX and more

I found myself in the position to expand the memory of my ESX or just buy more servers (or a mixture of both).
But how many DIMMs have occupied my ESX?
(And in general: How do I know what memory configuration has my Linux servers?)

the first thing that can be used is applications of manufacturer, type Open Manage DELL or IBM Director or IBM DSA to see how many slot / free memory banks and therefore we have as we expand. This is a slower but more beautiful graphically. (Of course, these applications require installation of getting off to RedHat3 version, which is leading the SOC. It is possible that not what we seek to give a quick look at the configuration of memory that we have).

The second is to use a command (although I have not tested yet): lshw .
The trouble is that this command is ignored by default in ESX elos and suffers from the same as the first option: You have to install anything on the console of our ESX and I like to avoid it whenever I can.


Finally, there is a very useful command that did not know: It dmidecode (run as root) gives us a pile after pile of information from our hardware, including alia: BIOS Information, System Information, Base Board Information, Chassis Information, Cache Information, Information Processor, Port Connector Information: USB, Video, IDE / Parallel ATA, SAS, Serial, Ethernet, ServeRAID Adapter, PCI-Express / X Riser, Power Supply, Fan, PCI-Express occupied and free ... and much more ...

The information we seek (Structure of RAM DIMMs currently installed on the system) appears as follows:

 
   Handle 0x004A DMI type  
  16, 15 bytes.  
    Physical Memory  
  Array Location: System Board Or Motherboard    
                   Use: System Memory                   
                   Maximum Capacity: 65024 MB   
                   Number Of Devices:     12   
   Handle 0x004B   
           DMI type 17, 27 bytes.   
           Memory Device   
                   Size:     512 MB   
                   Form Factor: DIMM   
                   Set: 1   
                       Locator: DIMM 1   
                   Bank Locator: Bank 1   
                   Speed: 266 MHz (3.8 ns)   
                       
   Handle 0x004C   
           DMI type 17, 27 bytes.   
           Memory Device                   
                   Size:     512 MB   
                   Form Factor: DIMM   
                   Set: 3   
                   Locator: DIMM 4   
                   Bank Locator: Bank 1   
                   Speed: 266 MHz (3.8 ns)   
   ...   
   Handle 0x004F   
           DMI type 17, 27 bytes.   
           Memory Device   
                   Size:      2048 MB   
                   Form Factor: DIMM   
                   Set: 3   
                   Locator: DIMM 3   
                   Bank Locator: Bank 5                       
                   Speed: 266 MHz (3.8 ns)   
              
   Handle 0x0055   
           DMI type 17, 27 bytes.   
           Memory Device   
                   Size: No Module Installed   
                   Form Factor: DIMM   
                   Set: 4   
                   Locator: DIMM 9  
  Bank Locator: Bank 6    
  Speed: 266 MHz (3.8 ns)   
 

can see, there are 12 slots in total, some occupied by 512MB of RAM 2GB others, other free etc, etc. ..