Lenovo ThinkServer Storage SA120 (English) User Guide and Hardware Maintenance - Page 29

Drive-status LEDs, SAS-connector-status LEDs, Rear I/O module power-status LED, Debug connector

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1 SAS-connector-status LEDs Status On Blinking On Off Color Green Green Amber None Description The SAS connector is in use, but no data is being transferred. The SAS connector is active and data is being transferred. The SAS connector has potential errors. The SAS connector is not in use or is working normally. Note: When a SAS-connector-status LED indicates potential errors, check the system-status LEDs on the server that the storage array is connected to for confirmation. 2 Rear I/O module power-status LED Status On Off Description The rear I/O module is turned on. The rear I/O module is turned off. 3 Rear I/O module status LED Status On Off Description The rear I/O module has potential errors. The rear I/O module is working normally. 4 Debug connector Use the debug connector to update the firmware of the storage array and diagnose problems. See Chapter 5 "Updating the firmware" on page 29 and "Using the command line interface" on page 59. 5 SAS-out connector Use the SAS-out connector to connect your storage array to another storage array in cascading mode. See "Connecting the storage arrays" on page 19. 6 SAS-in connector Use the SAS-in connector to connect your storage array to a server or another storage array. See "Connecting the storage arrays" on page 19. Drive-status LEDs Each drive has two status LEDs on the front. Figure 10. Status LEDs on 3.5-inch drives Chapter 2. Product overview 17

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1
SAS-connector-status LEDs
Status
Color
Description
On
Green
TheSASconnectorisinuse,butnodataisbeingtransferred.
Blinking
Green
TheSASconnectorisactiveanddataisbeingtransferred.
On
Amber
TheSASconnectorhaspotentialerrors.
Off
None
TheSASconnectorisnotinuseorisworkingnormally.
Note:
WhenaSAS-connector-statusLEDindicatespotentialerrors,checkthesystem-statusLEDsonthe
serverthatthestoragearrayisconnectedtoforconfirmation.
2
Rear I/O module power-status LED
Status
Description
On
TherearI/Omoduleisturnedon.
Off
TherearI/Omoduleisturnedoff.
3
Rear I/O module status LED
Status
Description
On
TherearI/Omodulehaspotentialerrors.
Off
TherearI/Omoduleisworkingnormally.
4
Debug connector
Usethedebugconnectortoupdatethefirmwareofthestoragearrayanddiagnoseproblems.SeeChapter5
“Updatingthefirmware”onpage29and“Usingthecommandlineinterface”onpage59.
5
SAS-out connector
UsetheSAS-outconnectortoconnectyourstoragearraytoanotherstoragearrayincascadingmode.
See“Connectingthestoragearrays”onpage19.
6
SAS-in connector
UsetheSAS-inconnectortoconnectyourstoragearraytoaserveroranotherstoragearray.See
“Connectingthestoragearrays”onpage19.
Drive-status LEDs
EachdrivehastwostatusLEDsonthefront.
Figure 10. Status LEDs on 3.5-inch drives
Chapter 2
.
Product overview
17