IBM Power Systems 8001-12C Manual page 33

Table 8. Storage device problems and service actions
Problem
System is unable to find more than one storage device
System unable to find a storage device
Service action
1. If the system was recently installed, moved, serviced,
or upgraded, verify that the device is seated and
installed properly.
2. Verify that the device is compatible with your system.
3. Verify that all internal cables are properly seated and
are not physically damaged.
4. Verify that the most recent firmware is installed on
the system, or install the most recent firmware if it is
not already installed.
5. If the devices are part of a RAID configuration,
ensure that the device has been enabled and is part of
an array.
6. If the devices are connected to a RAID adapter,
replace the RAID adapter.
7. If the devices are small form factor NVMe drives,
replace the following items one at a time until the
problem is resolved:
v NVMe host bus adapter
v Cables
v Disk drive backplane
v Small form factor NVMe drives
8. Replace the cable that connects the disk drive
backplane to the RAID adapter. If the system does
not have a RAID adapter, replace the cable that
connects the disk drive backplane to the system
backplane.
1. If the system was recently installed, moved, serviced,
or upgraded, verify that the device is seated and
installed properly.
2. Verify that the device is compatible with your system.
3. Verify that all internal cables are properly seated and
are not physically damaged.
4. Verify that the most recent firmware is installed on
the system, or install the most recent firmware if it is
not already installed.
5. If the device is part of a RAID configuration, ensure
that the device has been enabled and is part of an
array.
6. Install the device in an open or free slot. If the device
is able to be found replace the component with the
failing connector.
7. Replace the storage device.
8. Replace any applicable attached cable.
Beginning troubleshooting and problem analysis
17