Lenovo 3809 Server User Manual


 
Reliability, availability, and serviceability
Three important server design features are reliability, availability, and serviceability
(RAS). The RAS features help to ensure the integrity of the data that is stored in
the server, the availability of the server when you need it, and the ease with which
you can diagnose and repair problems.
The server might have the following RAS features (the features vary depending on
your model):
v Advanced Configuration and Power Interface (ACPI)
v Advanced Desktop Management Interface (DMI) features
v Automatic error retry or recovery
v Automatic memory downsizing on error detection
v Automatic restart on nonmaskable interrupt (NMI)
v Automatic Server Restart (ASR) logic supporting a system restart when the
operating system becomes unresponsive
v Automatic server restart after a power failure, based on the UEFI setting
v Availability of microcode level
v Boot-block recovery
v Built-in, menu-driven setup, system configuration, and redundant array of
independent disks (RAID) configuration
v Built-in monitoring for fan, power, temperature, and voltage
v Cooling fans with speed-sensing capability
v Customer support center that is available 24 hours a day, 7 days a week
Note: Service availability will vary by country. Response time varies; may
exclude holidays.
v Diagnostic support of ServeRAID
adapters
v Error codes and messages
v Error correcting code (ECC) double-data-rate 3 (DDR3) synchronous dynamic
random-access memory (SDRAM) with serial presence detect (SPD)
v Error logging of POST failures
v Hot-swap Serial Attached SCSI (SAS) and hot-swap Serial ATA (SATA) hard disk
drives
v Integrated Ethernet controller
v Key-lock support for physical security
v Memory change messages posted to the error log
v Integrated management module (IMM)
v Power management
v Power-on self-test (POST)
v Read-only memory (ROM) checksums
v ROM-based diagnostics programs
v Simple-swap Serial Advanced Technology Attachment (SATA) hard disk drives
v Standby voltage for systems-management features and monitoring
v System auto-configuring from the configuration menu
v System-error LED on the front bezel and diagnostic LEDs on the system board
v Upgradeable integrated management module (IMM) firmware
Chapter 3. What is included with your server 13