NEC Express5800 series User Manual page 145

Event ID505:
The following message is registered in RAID log in Universal RAID Utility and OS log
(Event Log of Windows, syslog of Linux).
Source:
Event ID:
Type:
Description:
If the event shown above is registered, check the current cache mode of RAID controller
by using the Universal RAID Utility.
→ If the current cache mode is set to "Write Back", it is not the problem in operating
the system.
→ If the current cache mode is set to "Write Through", the temperature of battery
raises temporarily due to refresh operation. Refresh operation pauses at occurrence
of this event, thus the temperature drops. Refresh operation is resumed after the
battery is cooled down. Upon completion of refresh operation, the current cache
mode is changed to "Write Back". If "Write Through" is retained even after 24
hours, the battery may be faulty. Replace the battery.
Event ID508:
When the RAID controller has additional battery (N8103-123 or N8103-124), the
following message is registered in RAID log in Universal RAID Utility and OS log (Event
Log of Windows, syslog of Linux).
Source:
Event ID:
Type:
Description:
Wait for about 15 minutes, then check the cache mode of the RAID controller. If the
current cache mode is set to "Write Back", it is not a problem in operating the system.
→ If the current cache mode is set to "Write Through", the battery need to be
refreshed. Contact your service representative.
If "Write Through" is retained even after 9 hours from start of refresh operation,
the battery may be faulty. Replace the battery.
Is battery connected immediately before?
→ This event may be logged until the refresh operation of battery is completed.
Access LED flashes:
Access LED flashes frequently even while the hard disk drive is not accessed.
→ The Access LED flashes if Patrol Read is running. With SATA hard disk drive, the
LED may stay on.
raidsrv
505
Warning
<RU0505> [CTRL: RAID controller number] Temperature of battery is
high.
Raidsrv
508 (800001FC)
Warning
<RU0508> [CTRL: RAID controller number] The battery status is unstable.
Troubleshooting 8-21