Tutorial on Viewing Detailed Memory Parameters of ESXi Hosts

View detailed memory parameters through the SSH command line

1. Enable SSH (if not already enabled)

In the vSphere Client, select Host → Configuration → Security Profile → Services → SSH → Start

2. View basic memory information

View total system memory, used, and availableesxcli hardware memory get Example output:Physical Memory: 68719476736 Bytes (64 GB)Reliable Memory: 0 BytesNUMA Node Count: 2

3. View detailed information about memory slots and modules (recommended)

List basic information of all memory slotsesxcli hardware dimm list Example output:Dimm ID: 0000_0000   Location: CPU0_DIMM_A1   Size: 16384 MB (16 GB)   Type: DDR4   Status: Enabled

Get more detailed information (including manufacturer, frequency, serial number)

esxcli hardware dimm list --verboseExample output (partial):Manufacturer: SamsungSpeed: 2666 MHzSerial Number: 0000000000000000Asset Tag: Not SpecifiedPart Number: M393A2K40DB1-CPB0

4. Use the smbiosDump command (alternative)

View all memory device informationsmbiosDump | grep -A 12 'Memory Device' View information for a specific slot (e.g., slot 10)smbiosDump | grep -A 12 'Memory Device: 10' View the number of memory slots and maximum capacitysmbiosDump | grep -A 5 'Physical Memory Array'