Lenovo ThinkAgile HX1321 Series User manual

User Guide for
ThinkAgile HX1321 Node
ThinkAgile HX3321 Node
Machine Types: 7Y89, 7Z0

Note
Before using this information and the product it supports, be sure to read and understand the safety
information and the safety instructions, which are available at:
http://thinksystem.lenovofiles.com/help/index.jsp?topic=%2Fsafety_documentation%2Fpdf_files.html
In addition, be sure that you are familiar with the terms and conditions of the Lenovo warranty for your server,
which can be found at:
https://datacentersupport.lenovo.com/us/zh/warrantylookup
Second Edition (June 2019)
© Copyright enovo 2018, 2019.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-
35F-05925.

Contents
Chapter 1. Introduction . . . . . . . . . 1
Typical Nutanix architecture . . . . . . . . . . . 2
HX deployment architecture . . . . . . . . . . . 2
Understanding appliances and certified nodes. . . . 2
Identifying your server . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . .
Management options. . . . . . . . . . . . . 10
Chapter 2. Server components . . . . 13
Front view . . . . . . . . . . . . . . . . . 13
Operator information panel . . . . . . . . . . 15
Rear view . . . . . . . . . . . . . . . . . 16
Rear view LEDs . . . . . . . . . . . . . . . 22
System board components . . . . . . . . . . 2
System board LEDs . . . . . . . . . . . . . 25
Parts list. . . . . . . . . . . . . . . . . . 26
Power cords . . . . . . . . . . . . . . 30
Chapter 3. Network/Infrastructure
Planning . . . . . . . . . . . . . . . . 31
Chapter 4. Server setup checklist. . . 33
Server package contents . . . . . . . . . . . 33
Cable the server . . . . . . . . . . . . . . 3
Power on the server . . . . . . . . . . . . . 35
Power off the server . . . . . . . . . . . 35
Set the network connection for the Lenovo XClarity
Controller . . . . . . . . . . . . . . . . . 35
Chapter 5. Installing and configuring
a cluster on ThinkAgile HX Series
servers . . . . . . . . . . . . . . . . . 37
Chapter 6. Installing and setting up
enovo XClarity Administrator. . . . . 39
Deploying Lenovo XClarity Administrator . . . . . 39
Managing ThinkAgile HX Series servers . . . . . 39
Chapter 7. Installing and setting up
enovo XClarity Integrator. . . . . . . 41
Deploying Lenovo XClarity Integrator for VMware
vCenter . . . . . . . . . . . . . . . . . . 1
Chapter 8. Hardware replacement
procedures . . . . . . . . . . . . . . . 43
Installation Guidelines . . . . . . . . . . . . 3
System reliability guidelines . . . . . . . .
Working inside the server with the power on . . 5
Handling static-sensitive devices . . . . . . 5
Hot-swap drive replacement . . . . . . . . . . 7
Remove a hot-swap drive . . . . . . . . . 7
Install a hot-swap drive . . . . . . . . . . 8
Hot-swap power supply replacement . . . . . . 9
Remove a hot-swap power supply. . . . . . 50
Install a hot-swap power supply . . . . . . 55
System fan replacement . . . . . . . . . . . 61
Remove a system fan . . . . . . . . . . . 61
Install a system fan. . . . . . . . . . . . 62
RAID adapter (HBA) replacement . . . . . . . . 6
Remove the RAID adapter . . . . . . . . . 6
Install the RAID adapter . . . . . . . . . . 65
LOM adapter replacement . . . . . . . . . . 66
Remove the LOM adapter . . . . . . . . . 67
Install the LOM adapter . . . . . . . . . . 68
PCIe adapter replacement. . . . . . . . . . . 69
Remove a PCIe adapter . . . . . . . . . . 69
Install a PCIe adapter . . . . . . . . . . . 70
DIMM replacement . . . . . . . . . . . . . 71
Remove a DIMM. . . . . . . . . . . . . 72
DIMM installation rules . . . . . . . . . . 73
Install a DIMM . . . . . . . . . . . . . 78
M.2 backplane and M.2 drive replacement . . . . 80
Remove the M.2 backplane and M.2 drive. . . 80
Adjust the retainer on the M.2 backplane . . . 81
Install the M.2 backplane and M.2 drive. . . . 82
Chapter 9. Updating firmware. . . . . 87
Appendix A. Configuration
procedures . . . . . . . . . . . . . . . 91
Appendix B. Getting help and
technical assistance . . . . . . . . . . 93
Appendix C. Trademarks . . . . . . . 95
Index . . . . . . . . . . . . . . . . . . 97
© Copyright Lenovo 2018, 2019 i

ii User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node

Chapter 1. Introduction
The ThinkAgile HX1321, and HX3321 Series servers are 1U rack servers that are fully qualified and that come
with VMware ESXi or AHV hypervisors preinstalled. It is designed to simplify IT operations and management
for customers through predefined server configurations that are optimized around specific types of
workloads, while conforming to best practices and compliance guidelines for Nutanix.
Note: A Nutanix cluster requires a minimum of three or more servers. The best practice is to use servers of
the same machine type and configuration to provide a balanced and high-performance solution.
In addition, the server is designed to utilize the Lenovo system management tools to create a unified
hardware management solution for Nutanix deployments:
• enovo XClarity Administrator, which provides firmware compliance functionality to ensure that the
ThinkAgile HX1321, and HX3321 Series servers are running the appropriate level of firmware for Lenovo
XClarity Controller, UEFI, and PCIe devices.
• enovo XClarity Integrator, which eases the integration into Nutanix Prism.
The ThinkAgile HX1321, and HX3321 Series hardware is based on the ThinkSystem SR630 rack server.
ThinkAgile HX1321
The ThinkAgile HX1321 Certified Node is engineered for light to medium workloads (business applications
and VDI) and optimized for remote office and branch office (ROBO) environments.
ThinkAgile HX3321
The ThinkAgile HX3321 Certified Node is engineered for compute-heavy workloads environments.
Helpful links
You might find the following links helpful:
Warranty lookup Lenovo ServerProven Lenovo open source projects
Lenovo product guides (Lenovo Press) Lenovo Configuration and Options
Guide
ThinkAgile HX Best Recipes
Lenovo Support Lenovo forums Drivers and Firmware Updates Best
Practices
Lenovo security advisories Lenovo HX Support Plan
© Copyright Lenovo 2018, 2019 1

Typical Nutanix architecture
A typical Nutanix architecture includes three or more servers that are implemented as a single Nutanix
cluster.
Each server contributes storage to the Nutanix cluster from the local disks on the server:
• Hybrid Cluster – The server provides a combination of solid state disks (SSDs) for caching and hard disk
drives (HDDs) for storage capacity.
• All-Flash Cluster – The server provides SSDs for caching and SSDs for storage capacity.
The following figure provides a conceptual view of the Nutanix architecture:
For detailed information on Nutanix architecture and workloads, visit
https://lenovopress.com/lp008 -converged-hx-series-nutanix-appliances-workloads-ra
HX deployment architecture
When deploying a ThinkAgile HX Series solution, the best practice is to use three or more servers of the
same machine type and configuration to provide a balanced and high-performance solution. However, some
specialized systems might be used in conjunction, such as “-C” nodes. In addition, 1–node and 2–node
clusters are supported using ThinkAgile HX1321 Series nodes. Lastly, a 1–node replication target is possible,
using the ThinkAgile HX1521-R.
The systems are connected through switches for management and data:
• A dedicated management network is used by the Lenovo XClarity Administrator to communicate with the
Lenovo XClarity Controller (XCC) on each of the ThinkAgile HX Series servers.
• A redundant 10Gbps Ethernet network is used for NDFS data traffic and user VM traffic. The redundant
Ethernet network is implement through two top-of-rack switches, such as the Lenovo ThinkSystem
NE1032 RackSwitch.
For more information about the Lenovo ThinkSystem NE1032 RackSwitch, see the following Web site:
https://lenovopress.com/lp0605-lenovo-thinksystem-ne1032-rackswitch
Understanding appliances and certified nodes
When it comes to hyperconverged deployments, Lenovo offers customers flexibility so that they can choose
the model that best suits their business needs.
2User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node

The ThinkAgile HX Series appliance, a best-in-class turnkey hyperconverged system, incorporates Nutanix’s
industry-leading software and licensing on Lenovo highly reliable platforms. For a seamless customer
experience, the ThinkAgile HX appliance includes white glove Lenovo deployment services and Lenovo
ThinkAgile Advantage Single Point of Support.
For customers who do not require prebundled Nutanix software licenses or deployment services, Lenovo
offers another fully validated and certified choice: the Lenovo ThinkAgile HX Certified Node, which includes:
• Fully validated and integrated Lenovo hardware and firmware, certified with Nutanix software
• Preloaded Nutanix software for ready deployment, Nutanixsoftware license obtained separately
• Lenovo ThinkAgile Advantage Single Point of Support for quick 2 /7 problem reporting and resolution
• Optional Lenovo deployment services
Identifying your server
When you contact Lenovo for help, the machine type and serial number information helps support
technicians to identify your server and provide faster service.
The machine type and serial number are on the ID label on the right rack latch in the front of the server.
Figure 1. Location of the ID label
Chapter 1.Introduction 3

XClarity Controller network access label
The XClarity Controller network access label is attached on the top side of the pull-out information tab. After
you get the server, peel the XClarity Controller network access label away and store it in a safe place.
Figure 2. Location of the XClarity Controller network access label
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.
Table 1. Server s ecifications
Specification Description
Dimension • 1U
• Height: 3.0 mm (1.7 inches)
• Width:
– With rack latches: 82.0 mm (19.0 inches)
– Without rack latches: 3 . mm (17.1 inches)
• Depth: 778.3 mm (30.7 inches)
Note: The depth is measured with rack latches and power supply installed, but without security
bezel installed.
Weight Up to 19.0 kg ( 1.9 lb)
Processor
(depending on
the model)
• Up to two Intel® Xeon® processors
• Up to 28 cores
• Designed for Land Grid Array (LGA) 36 7 socket
• Thermal Design Power (TDP): up to 205 watts
For more important information about the processor, refer to “Important information for system
board, processor, and heat sink” on page 9.
For a list of supported processors, see:
http://static.lenovo.com/us/en/serverproven/index.shtml
4User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node

Table 1. Server s ecifications (continued)
Specification Description
DIMM • Minimum: 8 GB
• Maximum:
– 768 GB using registered DIMMs (RDIMMs)
– 1.5 TB using load-reduced DIMMs (LRDIMMs)
– 3 TB using three-dimensional stack registered DIMMs (3DS RDIMMs)
• Type:
– PC -21300 (DDR -2666), operating speed depends on processor model and UEFI Operating
Mode selection
– Single-rank, dual-rank, quad-rank, or octa-rank
– RDIMM, LRDIMM, or 3DS RDIMM
• Slots: 2 DIMM slots
• Supports (depending on the model):
– 8 GB, 16 GB, and 32 GB RDIMMs
– 6 GB LRDIMMs
– 128 GB 3DS RDIMMs
For a list of supported DIMMs, see:
http://static.lenovo.com/us/en/serverproven/index.shtml
Internal drives • Up to two M.2 drives
• Up to four 3.5-inch hot-swap SAS/SATA drives
• Up to four 3.5-inch hot-swap SAS/SATA/NVMe drives
• Up to eight 2.5-inch hot-swap SAS/SATA drives
• Up to ten 2.5-inch hot-swap SAS/SATA/NVMe drives (NVMe drives are supported only in drive
bays 6–9)
• Up to ten 2.5-inch hot-swap NVMe drives
• Up to two 2.5-inch hot-swap SAS/SATA drives in the rear (the processor TDP should be less
than or equal to 125 watts)
Notes:
– NVMe drives means Non-Volatile Memory express drives.
– Only use M.2 drives provided by Lenovo.
– 80 GB M.2 drives are only supported on M.2 backplane with two M.2 drive slots.
– The backplane for ten 2.5-inch hot-swap NVMe drives is supported only when the following
configuration requirements are met:
– Intel Xeon 61 , 61 6, 615 , 8168, 8180, and 8180M processors are not installed.
– The power of the hot-swap power supply is 1100 watts.
– Rear hot-swap drive assembly is not installed.
– GPU is not installed.
– NVMe PCIe flash adapter is not installed.
PCIe slots Depending on the model, your server supports up to three PCIe slots in the rear. For detailed
information, see “Rear view” on page 16.
Chapter 1.Introduction 5

Table 1. Server s ecifications (continued)
Specification Description
Input/Output (I/
O) features • Front panel:
– One VGA connector (available on some models)
– One XClarity Controller USB 2.0 connector
– One USB 3.0 connector
• Rear panel:
– One VGA connector
– Two USB 3.0 connectors
– One XClarity Controller network connector
– Two or four Ethernet connectors on the LOM adapter (available on some models)
– One serial port (available on some models)
System fans • One processor: five dual-rotor hot-swap fans (including one redundant fan rotor)
• Two processors: seven dual-rotor hot-swap fans (including one redundant fan rotor)
Notes:
• For server models installed with Intel Xeon 61 , 61 6, 615 , 8168, 8180, and 8180M
processors, fan rotor redundancy function is not supported. If one fan rotor fails, the server
performance will be degraded.
• If your server comes with only one processor, five system fans (fan 1 to fan 5) are adequate to
provide proper cooling. However, you must keep the locations for fan 6 and fan 7 occupied by a
fan filler to ensure proper airflow.
Power supplies One or two hot-swap power supplies for redundancy support
• 550-watt ac 80 PLUS Platinum
• 750-watt ac 80 PLUS Platinum
• 750-watt ac 80 PLUS Titanium
• 1100-watt ac 80 PLUS Platinum
6User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node

Table 1. Server s ecifications (continued)
Specification Description
Electrical input • Sine-wave input (50–60 Hz) required
• Input voltage low range:
– Minimum: 100 V ac
– Maximum: 127 V ac
• Input voltage high range:
– Minimum: 200 V ac
– Maximum: 2 0 V ac
Note: For server models with 750-watt ac 80 PLUS Titanium power supplies, 100–127 V ac input
voltage is not supported.
CAUTION:
240 V dc input (input range: 180-300 V dc) is supported in China ON Y. Power supply with
240 V dc input cannot support hot plugging power cord function. Before removing the power
supply with dc input, please turn off server or disconnect dc power sources at the breaker
panel or by turning off the power source. Then, remove the power cord.
Environment The server is supported in the following environment:
• Air temperature:
– Operating:
– ASHRAE class A2: 10–35°C (50–95°F); when the altitude exceeds 900 m (2953 ft), the
maximum ambient temperature value decreases by 1°C (1.8°F) with every 300 m (98 ft)
of altitude increase.
– ASHRAE class A3: 5– 0°C ( 1–10 °F); when the altitude exceeds 900 m (2953 ft), the
maximum ambient temperature value decreases by 1°C (1.8°F) with every 175 m (57 ft)
of altitude increase.
– ASHRAE class A : 5– 5°C ( 1–113°F); when the altitude exceeds 900 m (2953 ft), the
maximum ambient temperature value decreases by 1°C (1.8°F) with every 125 m ( 10 ft)
of altitude increase.
– Server off: 5– 5°C ( 1–113°F)
– Shipping or storage: - 0–60°C (- 0–1 0°F)
• Maximum altitude: 3050 m (10 000 ft)
• Relative humidity (non-condensing):
– Operating:
– ASHRAE class A2: 8%–80%; maximum dew point: 21°C (70°F)
– ASHRAE class A3: 8%–85%; maximum dew point: 2 °C (75°F)
– ASHRAE class A : 8%–90%; maximum dew point: 2 °C (75°F)
– Shipping or storage: 8%–90%
• Particulate contamination
Attention: Airborne particulates and reactive gases acting alone or in combination with other
environmental factors such as humidity or temperature might pose a risk to the server.
Note: Your server complies with ASHRAE class A2 specifications. The server performance might
be impacted when the operating temperature is outside the ASHRAE A2 specifications. Depending
on the hardware configuration, some server models comply with ASHRAE class A3 and class A
specifications. To comply with ASHRAE class A3 and class A specifications, the server models
must meet the following hardware configuration requirements at the same time:
Chapter 1.Introduction 7

Table 1. Server s ecifications (continued)
Specification Description
• Two power supplies are installed.
• NVMe drive is not installed.
• NVMe PCIe flash adapter is not installed.
• P2000 GPU is not installed.
• No P GPU is installed in PCIe slot 1.
• No P600 GPU is installed in PCIe slot 2.
• For server models with 2.5-inch drive bays, the RAID super capacitor module cannot be
installed on the bottom of the air baffle, but only can be installed on the chassis.
• The backplane for ten 2.5-inch NVMe drives is not installed.
• The following processors are not installed:
– Processors with TDP higher than or equal to 150 watts
– Intel Xeon 112, 5122, 6126, 6128, 6132, 613 , 613 M, and 8156 processors
8User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node

Important information for system board, processor, and heat sink
There are two types of system board for your server:
• Left: System board with large lift handle 1
• Right: System board with small lift handle 2
Figure 3. Two ty es of system board
There are two shape types of heat sink for your server:
• Left: Small-size heat sink
• Right: Large-size heat sink
Figure 4. Two ty es of heat sink
Chapter 1.Introduction 9

The following table lists the important information for the system board, heat sink, and processor.
System board
installed
Heat sink
installed
Important information
System board
with large lift
handle or system
board with small
lift handle
Small size heat
sink
For server models installed with Intel Xeon 61 , 61 6, 615 , 8168, 8180,
and 8180M processors, the following parts are not supported:
• Front backplane and front hot-swap SAS/SATA/NVMe drives
• Rear hot-swap drive assembly
• RAID super capacitor module on the bottom of the air baffle
• NVMe PCIe flash adapter
• GPU
System board
with small lift
handle
Large size heat
sink • For server models installed with large size heat sink, the air baffle and the
RAID super capacitor module on the bottom of the air baffle are not
supported.
• For server models installed with Intel Xeon 61 , 61 6, 8168, 8180, and
8180M processors, ensure that the following configuration requirements
are met:
– The backplane for ten 2.5-inch NVMe drives is not installed.
– No system fan is failed.
– Rear hot-swap drive assembly is not installed.
– NVMe PCIe flash adapter is not installed.
– GPU is not installed.
• For server models installed with the backplane for ten 2.5-inch SAS/
SATA/NVMe drives, Intel Xeon 615 processor is supported with the
condition that the following configuration requirements are met:
– No system fan is failed.
– Only four SAS/SATA/NVMe drives are installed in drive bays 6–9.
– Rear hot-swap drive assembly is not installed.
– NVMe PCIe flash adapter is not installed.
– GPU is not installed.
Management options
Multiple management interfaces are available for managing your ThinkAgile HX1321, and HX3321 Series
appliance.
enovo XClarity Administrator
Lenovo XClarity Administrator is a centralized, resource-management solution that simplifies infrastructure
management, speeds responses, and enhances the availability of Lenovo server systems and solutions. It
runs as a virtual appliance that automates discovery, inventory, tracking, monitoring, and provisioning for
server, network, and storage hardware in a secure environment.
Lenovo XClarity Administrator provides a central interface to perform the following functions for all managed
endpoints:
• Manage and monitor hardware. Lenovo XClarity Administrator provides agent-free hardware
management. It can automatically discover manageable endpoints, including server, network, and storage
hardware. Inventory data is collected for managed endpoints for an at-a-glance view of the managed
hardware inventory and status.
10 User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node

• Configuration management. You can quickly provision and pre-provision all of your servers using a
consistent configuration. Configuration settings (such as local storage, I/O adapters, boot settings,
firmware, ports, and Lenovo XClarity Controller and UEFI settings) are saved as a server pattern that can
be applied to one or more managed servers. When the server patterns are updated, the changes are
automatically deployed to the applied servers.
• Firmware compliance and updates. Firmware management is simplified by assigning firmware-
compliance policies to managed endpoints. When you create and assign a compliance policy to managed
endpoints, Lenovo XClarity Administrator monitors changes to the inventory for those endpoints and flags
any endpoints that are out of compliance.
When an endpoint is out of compliance, you can use Lenovo XClarity Administrator to apply and activate
firmware updates for all devices in that endpoint from a repository of firmware updates that you manage.
• Operating System deployment. You can use Lenovo XClarity Administrator to manage a repository of
operating-system images and to deploy operating-system images to up to 28 managed servers
concurrently.
• Service and support. You can manually collect diagnostic files, open a problem record, and send
diagnostic files to the Lenovo Support Center.
Lenovo XClarity Administrator can be integrated into external, higher-level management and automation
platforms through open REST application programming interfaces (APIs). Using the REST APIs, Lenovo
XClarity Administrator can easily integrate with your existing management infrastructure. In addition, you can
automate tasks using the PowerShell toolkit or the Python toolkit.
To obtain the latest version of the Lenovo XClarity Administrator, see:
https://datacentersupport.lenovo.com/us/zh/documents/lnvo-lxcaupd
Documentation for Lenovo XClarity Administrator is available at:
http://sysmgt.lenovofiles.com/help/index.jsp?topic=%2Fcom.lenovo.lxca.doc%2Faug_product_page.html
enovo XClarity Integrator
Lenovo also provides the following integrators that you can use to manage Lenovo servers from higher-level
management tools:
• Lenovo XClarity Integrator for VMware vCenter
• Lenovo XClarity Integrator Microsoft System Center
For more information about Lenovo XClarity Integrator, see:
https://www3.lenovo.com/us/en/data-center/software/systems-management/xclarity-integrators
Chapter 1.Introduction 11

12 User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node

Chapter 2. Server components
Use the information in this section to learn about each of the components associated with your server.
Front view
The front view of the server varies by model. Depending on the model, your server might look slightly
different from the illustrations in this topic.
Figure 5. Front view of the ThinkAgile HX1321
Figure 6. Front view of the ThinkAgile HX3321
Table 2. Com onents on the front of the server
1 VGA connector (available on some models) 2 Pull-out information tab
3 XClarity Controller USB connector 4 USB 3.0 connector
5 Operator information panel 6 Rack latch (right)
7 Hot-swap drive bays 8 Drive status LED (yellow)
9 Drive activity LED (green) 10 Rack latch (left)
1 VGA connector (available on some models)
Used to attach a high-performance monitor, a direct-drive monitor, or other devices that use a VGA
connector.
2 Pull-out information tab
The XClarity Controller network access label is attached on the pull-out information tab.
© Copyright Lenovo 2018, 2019 13

3 XClarity Controller USB connector
Depending on the setting, this connector supports USB 2.0 function, XClarity Controller management
function, or both.
• If the connector is set for USB 2.0 function, you can attach a device that requires a USB 2.0 connection,
such as a keyboard, a mouse, or a USB storage device.
• If the connector is set for XClarity Controller management function, you can attach a mobile device
installed with the application to run XClarity Controller event logs.
• If the connector is set to have both functions, you can press the ID button for three seconds to switch
between the two functions.
4 USB 3.0 connector
Attach a USB-compatible device, such as a USB keyboard, USB mouse, or USB storage device.
5 Operator information panel
For information about the controls and status LEDs on the operator information panel, see “Operator
information panel” on page 15.
6 10 Rack latches
If your server is installed in a rack, you can use the rack latches to help you slide the server out of the rack.
You also can use the rack latches and screws to secure the server in the rack so that the server cannot slide
out, especially in vibration-prone areas. For more information, refer to the Rack Installation Guide that comes
with your rail kit.
7 Hot-swap drive bays
The number of the installed drives in your server varies by model. When you install drives, follow the order of
the drive bay numbers.
The EMI integrity and cooling of the server are protected by having all drive bays occupied. The vacant drive
bays must be occupied by drive fillers.
8 Drive status ED
9 Drive activity ED
Each hot-swap drive has two LEDs.
Drive ED Status Description
8 Drive status LED (right) Solid yellow The drive has an error.
Blinking yellow (blinking slowly, about one
flash per second)
The drive is being rebuilt.
Blinking yellow (blinking rapidly, about four
flashes per second)
The RAID adapter is locating the drive.
9 Drive activity LED (left) Solid green The drive is powered but not active.
Blinking green The drive is active.
14 User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node

Operator information panel
The operator information panel of the server provides controls and LEDs.
The following illustration shows the operator information panel of the server.
Figure 7. O erator information anel
Table 3. Com onents on the o erator information anel
1 Power button with power status LED 2 Network activity LED
3 System ID button with system ID LED 4 System error LED
1 Power button with power status ED
You can press the power button to power on the server when you finish setting up the server. You also can
hold the power button for several seconds to power off the server if you cannot shut down the server from
the operating system. The power status LED helps you to determine the current power status.
Status Color Description
Solid on Green The server is on and running.
Slow blinking
(about one flash
per second)
Green The server is off and is ready to be powered on (standby state).
Fast blinking
(about four
flashes per
second)
Green The server is off, but the XClarity Controller is initializing, and the server is not ready
to be powered on.
Off None There is no ac power applied to the server.
2 Network activity ED
The network activity LED on the operator information panel helps you identify the network connectivity and
activity.
Status Color Description
On Green The server is connected to a network.
Blinking Green The network is connected and active.
Off None The server is disconnected from the network.
3 System ID button with system ID ED
Use this system ID button and the blue system ID LED to visually locate the server. A system ID LED is also
located on the rear of the server. Each time you press the system ID button, the state of both the system ID
LEDs changes. The LEDs can be changed to on, blinking, or off. You can also use the Lenovo XClarity
Chapter 2.Server components 15

Controller or a remote management program to change the state of the system ID LEDs to assist in visually
locating the server among other servers.
If the XClarity Controller USB connector is set to have both the USB 2.0 function and XClarity Controller
management function, you can press the system ID button for three seconds to switch between the two
functions.
4 System error ED
The system error LED helps you to determine if there are any system errors.
Status Color Description Action
On Yellow An error has been detected on the server.
Causes might include but not limited to the
following errors:
• The temperature of the server reached
the non-critical temperature threshold.
• The voltage of the server reached the
non-critical voltage threshold.
• A fan has been detected to be running at
low speed.
• A hot-swap fan has been removed.
• The power supply has a critical error.
• The power supply is not connected to
the power.
Check the event log to determine the exact
cause of the error.
Off None The server is off or the server is on and is
working correctly.
None.
Rear view
The rear of the server provides access to several connectors and components, including the power supplies,
PCIe adapters, hot-swap drive bays, serial port, and Ethernet connectors.
• “Rear view of server models with three PCIe slots” on page 16
• “Rear view of server models with two PCIe slots” on page 18
• “Rear view of server models with two hot-swap drive bays and one PCIe slot” on page 20
Rear view of server models with three PCIe slots
The following illustration shows the rear view of server models with three PCIe slots. Depending on the
model, your server might look slightly different from the illustration below.
Figure 8. Rear view of server models with three PCIe slots
16 User Guide for ThinkAgile HX1321 Node ThinkAgile HX3321 Node