Lenovo ThinkSystem SR950, Setup Manual, Page: 7 / 390

Light path diagnostics provides LEDs to help you diagnose problems and an LCD information display
panel that provides additional diagnostic information. For more information about the light path
diagnostics, see “Front operator panel with LCD display” on page 28 and “Light path diagnostics” in
ThinkSystem SR950 Maintenance Manual
.
•
Mobile access to Lenovo Service Information website
The server provides a QR code on each system board that you can scan using a QR code reader and
scanner with a mobile device to get quick access to the Lenovo Service Information website. The Lenovo
Service Information website provides additional information for parts installation, replacement videos, and
error codes for server support. See “QR code” on page 23 for information about accessing the QR code
label.
•
Active Energy Manager
Lenovo XClarity Energy Manager is a power and temperature management solution for data centers. You
can monitor and manage the power consumption and temperature of Converged, NeXtScale, System x,
and ThinkServer servers, and improve energy efficiency using Lenovo XClarity Energy Manager.
•
Redundant networking connection
The Lenovo XClarity Controller provides failover capability to a redundant Ethernet connection with the
applicable application installed. If a problem occurs with the primary Ethernet connection, all Ethernet
traffic that is associated with the primary connection is automatically switched to the optional redundant
Ethernet connection. If the applicable device drivers are installed, this switching occurs without data loss
and without user intervention.
•
Redundant cooling and optional power capabilities
The server supports a maximum of four 1100-watt (110V or 220V ac), 1600-watt (220V ac), or 2000-watt
(220V ac) hot-swap power supplies and six or twelve hot-swap fans, depending on the server
configuration. The redundant cooling by the fans in the server enables continued operation if a fan fails.
Note:
You cannot mix power supply types in the server.
Two types of fans are supported:
– 60 mm x 38mm, 16K internal hot-swap fans (01CX965)
– 60 mm x 38mm, 19K internal hot-swap fans (01PG490)
Notes:
– Different fan types cannot be mixed within a system. All fans must be either 16K fans or 19K fans.
– Before upgrading fans from 16K to 19K, you must make sure that the system has version 2 of the
ThinkSystem 2-CPU, 24-DIMM, Compute System Board (01CV978) installed in each compute tray.
•
ThinkSystem RAID support
The ThinkSystem RAID adapter provides hardware redundant array of independent disks (RAID) support
to create configurations. The standard RAID adapter provides RAID levels 0 and 1. An optional RAID
adapter is available for purchase.
Specifications
The following information is a summary of the features and specifications of the server. Depending on the
model, some features might not be available, or some specifications might not apply.
Chapter 1
.
Introduction
3