NEC N8100-1998F User Manual

Also see for NEC Express5800 Series: User guide User guide User guide User guide Configuration guide

Contents

NEC N8100-1998F User Manual Manual pdf 47 page image

4. Names and Functions of PartsExpress5800/R110f-1E User’s Guide 47Chapter 1 General Description4.7.6 UID LED (ID)The UID LED is provided one each at the front and rear of the server. If you press the UID switch provided atthe front or rear of the server, the light turns on. If you press it again, the light turns off. It flashes whencommands from software are received. This LED is used to identify the target server among multiple serversinstalled in a rack. Especially when performing maintenance from behind the server, lighting the LED willhelp you to identify which server to work with.Tips You can turn on an LED using remote management software.4.7.7 LED on a hard disk driveDISK LED on a hard disk drive indicates several states.• The LED flashes greenThis indicates a hard disk drive is being accessed.• The LED flashes amberWhen Logical Drives are configured in the RAID System, this indicates the installed hard disk drive isbroken.Tips When Logical Drives (RAID 1, 5, 6, 10, 50 and 60) are configured in the RAID System, thesystem can continue to operate even if one hard disk drive (2 drives in the case of RAID 6or RAID 60) failed. However, we recommend you replace the failed hard disk drive andperform rebuilding as soon as possible (hard disk drives are replaced by using hotswapping).• The LED flashes green and amber alternatelyThis indicates that a hard disk drive is being rebuilt (not a defect). In a RAID System, the hard disk driveis automatically rebuilt upon replacing a broken hard disk drive (auto build function). The LED flashesgreen and amber alternately while a hard disk drive is being rebuilt.The LED goes off when rebuilding completes. If rebuilding fails, the LED flashes amber.Important Observe the following precautions whenever you use the auto build function.• Do not turn off or reboot the server while a hard disk drive is being rebuilt.• Wait at least 90 seconds before installing a hard disk drive after removing one.• Do not replace a hard disk drive while another hard disk drive is being rebuilt.DISK LED3.5-inch hard disk driveDISK LED2.5-inch hard disk drive