Linux server box with LSI MegaRAID controller got degraded. But after some time RAID status changed to Optimal.
Adapter 0 -- Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 2.727 TB
Mirror Data : 2.727 TB
State : Optimal
Strip Size : 256 KB
Number Of Drives per span:2
Span Depth : 3
Default Cache Policy: WriteBack, ReadAdaptive, Cached, No Write Cache if Bad BBU
Current Cache Policy: WriteThrough, ReadAdaptive, Cached, No Write Cache if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Disk's Default
Encryption Type : None
Is VD Cached: No
But now I'm getting RAID BIOS POST message:
Your battery is either charging, bad or missing, and you have VDs
configured for write-back mode. Because the battery is not currently
usable, these VDs willl actually run in write-through mode until the
battery is fully charged or replaced if it is bad or missing.
(Image: http://cl.ly/image/1h1O093b1i2d)
So may it be battery issue caused problem ?
I get information about battery:
BatteryType: iBBU
Voltage: 4001 mV
Current: 0 mA
Temperature: 22 C
Battery State : Operational
BBU Firmware Status:
Charging Status : None
Voltage : OK
Temperature : OK
Learn Cycle Requested : No
Learn Cycle Active : No
Learn Cycle Status : OK
Learn Cycle Timeout : No
I2c Errors Detected : No
Battery Pack Missing : No
Battery Replacement required : No
Remaining Capacity Low : No
Periodic Learn Required : No
Transparent Learn : No
No space to cache offload : No
Pack is about to fail & should be replaced : No
Cache Offload premium feature required : No
Module microcode update required : No
Where can be problem ? I'm disabled alarms, but get them if enabled. But don't know how find root of problem.
