Areca 24/4 Internal/External Port Pcie 3.0 12 Gb/s SAS/SATA Raid Controller 2Gb Cache - Manual (Page 233)

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APPENDIX
D. Hardware Monitor Event
Event Level Meaning Action
DRAM 1-Bit ECC Urgent DRAM 1-Bit ECC error Check DRAM
DRAM Fatal Error Urgent DRAM fatal error
encountered
Check the DRAM module and
replace with new one if required.
Controller Over
Temperature
Urgent Abnormally high
temperature detected
on controller
Check air flow and cooling fan of
the enclosure, and contact us.
Hdd Over
Temperature
Urgent Abnormally high
temperature detected
on Hdd
Check air flow and cooling fan of
theenclosure.
Fan Failed Urgent Cooling Fan # failure
or speed below
1700RPM
Check cooling fan of the enclosure
and replace with a new one if
required.
Controller Temp.
Recovered
Serious Controller temperature
back tonormal level
Hdd Temp.
Recovered
Serious HDD temperature back
tonormal level
Raid Powered On Warning RAID power on
Test Event Urgent Test event
Power On With
Battery Backup
Warning RAID power on with
battery backuped
Incomplete RAID
Discovered
Serious Some RAID set
member disks missing
before power on
Check disk information to find out
which channel missing.
HTTP Log In Serious a HTTP login detected
Telnet Log Serious a Telnet login detected
InVT100 Log In Serious a VT100 login detected
API Log In Serious a API login detected
Lost Rebuilding/
MigrationLBA
Urgent Some rebuilding/
migration raidset
member disks missing
before power on.
Reinserted the missing member
disk back, controller will continued
the incompleted rebuilding/
migration.