3. (Trained technician only) Make sure that processor 1 and 2 are seated correctly
4. (Trained technician only) Remove processor 3 and 4 and restart the compute node.
5. Replace the following components one at a time, in the order shown, restarting the compute node each
time:
a. (Trained technician only) Processor
b. (Trained technician only) System board
Embedded hypervisor is not in the boot list
Complete the following steps until the problem is solved.
1. If the compute node has been installed, moved, or serviced recently, or if this is the first time the
embedded hypervisor is being used, make sure that the device is connected properly and that there is
no physical damage to the connectors.
2. See the documentation that comes with the optional embedded hypervisor flash device for setup and
configuration information.
3. Check
https://static.lenovo.com/us/en/serverproven/index.shtml to validate that the embedded hypervisor
device is supported for the compute node.
4. Make sure that the embedded hypervisor device is listed in the list of available boot options. From the
management controller user interface, click Compute node Configuration ➙ Boot Options.
For information about accessing the management controller user interface, see the “Opening and Using
the XClarity Controller Web Interface” section in the XCC documentation version compatible with your
server at
https://sysmgt.lenovofiles.com/help/topic/lxcc_frontend/lxcc_overview.html.
5. Check
http://datacentersupport.lenovo.com for any tech tips (service bulletins) related to the embedded
hypervisor and the compute node.
6. Make sure that other software works on the compute node to ensure that it is working properly.
Server cannot recognize a hard drive
Complete the following steps until the problem is solved.
1. Verify that the drive is supported for the compute node. See
https://static.lenovo.com/us/en/serverproven/
index.shtml
for a list of supported hard drives.
2. Make sure that the drive is seated in the drive bay properly and that there is no physical damage to the
drive connectors.
3. Run the diagnostics tests for the hard disk drives. When you start a server and press the key according
to the on-screen instructions, the LXPM is displayed by default. (For more information, see the “Startup”
section in the LXPM documentation compatible with your server at
https://sysmgt.lenovofiles.com/help/
topic/lxpm_frontend/lxpm_product_page.html
.) You can perform hard drive diagnostics from this interface.
From the Diagnostic page, click Run Diagnostic ➙ Disk Drive Test.
Based on those tests:
a. If the drive fails the diagnostic test, replace the drive.
b. If the drive passes the diagnostic tests but is still not recognized, complete the following steps:
1) Replace the drive (see
“Install a 2.5-inch hot-swap drive” on page 35 for instructions).
2) Replace the hard drive backplane (see
“Install a 2.5-inch drive backplane” on page 34 for
instructions).
4. There are several types of drive, make sure you install the right type drive which is the same as the
compute node setting:
• SATA drive
• SAS drive
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ThinkSystem SN850 Compute Node Setup Guide
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