RAM

Random-access memory (RAM /ræm/) is a form of computer memory that can be read and write in any order typically used for CPU operations and storing volatile information.

Activities

1. Review how much RAM you have in your linux computer by executing: cat /proc/meminfo
2. Review physical RAM modules in Linux as superuser with: dmidecode --type memory
3. Learn about how much RAM can a single CPU socket support in modern enterprise hardware. As of 2019 some servers support up to 3.0 TB per socket.
4. Use free command in Linux to review your memory usage
5. Use sar -r to view historical memory usage
6. Compare SDD and RAM speeds

Related terms

• HPE Fast Fault Tolerance
• RAM pickup
• Resource Access Management

See also

• Memory: RAM, DRAM, SDRAM, NVRAM, DMA, ECC, VRAM, Nanya, SGRAM, DDR
• wikipedia:DDR4_SDRAM and wikipedia:DDR5_SDRAM
• KVM: Virsh Memory Commands
• CPU, HDD and SSD
• Linux server administration/Performance and Troubleshooting
• Memory Unit
• Memory: memory pages, RAM, virsh Memory Commands, OOM, meminfo, vmstat, NAND, DDR, lsmem, /dev/shm, /proc/meminfo, sar -r, IOMMU, pmem, Memory management, Garbage collector, THP, Linux Huge Page TLB, usage, Remote direct memory access (RMDA), SK Hynix, HBM

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