User Manual

Availability and serviceability
The ST250 provides the following features to simplify serviceability and increase system uptime:
The ST250 supports UDIMM memory with ECC protection which provides error correction not available
in PC-class "servers" that use parity memory. Avoiding system crashes (and data loss) due to soft
memory errors means greater system uptime.
The server offers hot-swap (HS) SSDs and HDDs, and supports RAID redundancy for data protection
and greater system uptime.
Much like hot-swap drives, simple-swap drives are mounted on an easy-to-remove tray and work
with the same RAID options. Simple-swap require a system power-down before adding or replacing,
however simple-swap drives are less expensive than hot-swap drives.
The server supports hot-swap power supplies; with two installed, they form a redundant pair to provide
availability for business-critical applications.
Tool-less cover removal provides easy access to upgrades and serviceable parts, such as memory and
adapter cards.
A choice of affordable onboard SATA RAID or advanced hardware RAID redundancy offers data
protection and greater system uptime.
The use of SSDs can provide better reliability than the use of traditional HDDs, for greater uptime.
The built-in XClarity Controller continuously monitors system parameters, triggers alerts, and performs
recovery actions in case of failures to minimize downtime.
Built-in diagnostics in UEFI, using Lenovo XClarity Provisioning Manager, speed up troubleshooting
tasks to reduce service time.
Lenovo XClarity Provisioning Manager supports diagnostics and can save service data to a USB key
drive or remote CIFS share folder for troubleshooting and reduce service time.
Support for the XClarity Administrator Mobile app running on a supported smartphone and connected
to the server through the service-enabled USB port, enables additional local systems management
functions.
Auto restart in the event of a momentary loss of AC power (based on power policy setting in the
XClarity Controller service processor)
One-year or three-year customer-replaceable unit (CRU) and onsite limited warranty with next business
day response. Optional service upgrades are available.
Manageability and security
The following powerful systems management features simplify local and remote management of the ST250:
The server includes an XClarity Controller (XCC) to monitor server availability. Optional upgrade to XCC
Advanced to provide remote control (keyboard video mouse) functions. Optional upgrade to XCC
Enterprise enables the additional support for the mounting of remote media files (ISO and IMG image
files), boot capture, and power capping.
Lenovo XClarity Administrator offers comprehensive hardware management tools that help to increase
uptime, reduce costs and improve productivity through advanced server management capabilities.
New UEFI-based Lenovo XClarity Provisioning Manager, accessible from F1 during boot, provides
system inventory information, graphical UEFI Setup, platform update function, RAID Setup wizard,
operating system installation function, and diagnostic functions.
Support for Lenovo XClarity Energy Manager which captures real-time power and temperature data
from the server and provides automated controls to lower energy costs.
Integrated Trusted Platform Module (TPM) 2.0 support enables advanced cryptographic functionality,
such as digital signatures and remote attestation.
Industry-standard Advanced Encryption Standard (AES) NI support for faster, stronger encryption.
Intel Execute Disable Bit functionality can prevent certain classes of malicious buffer overflow attacks
when combined with a supported operating system.
Lenovo ThinkSystem ST250 Server 3