IBM System Storage EXP2512 Express Storage Enclosure, Инструкция по установке, использованию и обслуживанию

Страница: 54 / 72

Table 6. Troubleshooting information (continued)
Component Problem indicator Possible cause Possible solutions
One or more hard
disk drives One or more green
LEDs off No activity to the
drives No action is required.
All hard disk
drives No activity to the
drives No action is required.
Damaged or loose
SAS cables Check the SAS cables and connections.
ESM failure Use the RAID controller management software to
check the drive status. Replace the ESM. See
“Replacing an ESM” on page 35.
Midplane failure Have the EXP2500 serviced.
Front panel Power supply Make sure that the cables are connected and the
power supplies are turned on.
Hardware failure If any other LEDs are lit, have the EXP2500
serviced.
Some or all
components Intermittent or
sporadic power loss to
the EXP2500 Defective ac or dc
power source or
partially connected
power cord
1. Check the ac or dc power source.
2. Secure all installed power cables and power
supplies.
3. If applicable, check the power components
(power supplies, uninterruptible power supply,
and so on).
4. Replace defective power cables.
Power-supply
failure Check for a fault LED on the power supply and
replace the failed power supply. See “Replacing a
hot-swap power supply” on page 36.
Midplane failure Have the EXP2500 serviced.
Drives Unable to access any
drives SAS cable
1. Make sure that the SAS cables are undamaged
and correctly connected.
2. Replace the cables.
ESM failure Have the EXP2500 serviced.
Subsystem Random errors Midplane failure Have the EXP2500 serviced.
42
System Storage EXP2512 and EXP2524: Installation and Maintenance Guide