1.3 Server Flashcards
How is server hardware different from individual workstation hardware?
Server hardware has different features, follows a different economic model, and requires special installation/support procedures.
It typically includes maintenance contracts, disk-backup systems, certified OS support, and better remote access.
What are some key features of server hardware?
Extensibility, higher CPU performance, high-performance I/O, upgrade options, rack-mountability, high availability, maintenance contracts, and options for redundancy.
What are some strategies to improve server reliability?
Using server appliances, redundant power supplies, full vs. n+1 redundancy, hot-swappable components, multiple network connections, and a management console.
How do server processors differ from desktop processors?
They have more cache memory, can handle more data via PCIe, support multiple-CPU setups, have more cores, and use ECC memory for error correction.
Name some common server processors.
Intel Xeon (D, W, E series, and Scalable Processors: Platinum, Gold, Silver, Bronze) and AMD Opteron/Epyc (Opteron X3000, Epyc 7001, Epyc 7002).
What are some alternatives to expensive servers?
Using many inexpensive servers with commodity components, blade servers, and virtual servers.
What are the three main types of servers?
Tower servers, rack-mount servers, and blade servers.
What are the advantages and disadvantages of tower servers?
Advantages: Good airflow and cooling, standard component sizes.
Disadvantages: Bulky compared to rack-mounted equivalents.
What are the characteristics of rack-mount servers?
Designed for equipment racks, may run hotter, require special-sized components, and come in 1U or 2U chassis sizes.
What are the benefits and drawbacks of blade servers?
Advantages: Space-saving, fewer cables, lower power consumption, more CPUs in less space.
Disadvantages: Only compatible with components from the same manufacturer.
