3-55
Cisco UCS C220 M4 Server Installation and Service Guide
OL-32473-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Fusion-io ioDrive2 3.0TB, Product Number:F01-001-2T41-CS-0001, FIO SN:1149D0969
External Power: NOT connected
PCIe Power limit threshold: 24.75W
Connected ioMemory modules:
fct2: SN:1149D0969-1121
fct3: SN:1149D0969-1111
In this example, 1149D0969 is the adapter serial number. If you have multiple Fusion ioDrive3 devices
installed in your system, use the
fio-beacon command to verify where each device is physically located.
Note There is also a serial number label on the card, but we recommend that you use the fio-status
command to confirm the serial number is an adapter serial number (FIO SN in the sample output
above).
Step 2 Set the override parameter by editing the /usr/modprove.d/iomemory-vsl.conf file, which is installed
when you install the device drivers.
Change the value for the
external_power_override parameter, where the <value> for this parameter is
a comma-separated list of adapter serial numbers.
options iomemory-vsl external_power_override=<value>
For example:
options iomemory-vsl external_power_override=1149D0969,1159E0972
Step 3 Reboot the server or unload and then load the drivers to enforce the parameter changes.
Installing Multiple PCIe Cards and Resolving Limited Resources
When a large number of PCIe add-on cards are installed in the server, the system might run out of the
following resources required for PCIe devices:
• Option ROM memory space
• 16-bit I/O space
The topics in this section provide guidelines for resolving the issues related to these limited resources:
• Resolving Insufficient Memory Space to Execute Option ROMs, page 3-55
• Resolving Insufficient 16-Bit I/O Space, page 3-56
Resolving Insufficient Memory Space to Execute Option ROMs
The system has very limited memory to execute PCIe legacy option ROMs, so when a large number of
PCIe add-on cards are installed in the server, the system BIOS might not able to execute all of the option
ROMs. The system BIOS loads and executes the option ROMs in the order that the PCIe cards are
enumerated (slot 1, slot 2, slot 3, and so on).
If the system BIOS does not have sufficient memory space to load any PCIe option ROM, it skips loading
that option ROM, reports a system event log (SEL) event to the Cisco IMC controller and reports the
following error in the Error Manager page of the BIOS Setup utility:
ERROR CODE SEVERITY INSTANCE DESCRIPTION
146 Major N/A PCI out of resources error.
Major severity requires user
intervention but does not
prevent system boot.
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