Meaning of Battery Relearn messages
exacqVision Server
The RAID Controller undergoes a normal cycle to periodically drain the power from the board’s backup battery to test its ability to provide power when needed. This cycle is referred to a ‘relearn’.
No action needed, this is a normal message.
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ExacqVision BBU Failure
Meaning of BBU (Backup Battery Unit) Failure message
ExacqVision Server
Battery Backup failure means that the on-board RAID Controller’s battery is bad and should be replaced.
In many cases, this may mean replacing the entire RAID card due to restrictions on shipping batteries.
Confirm that any cables connecting the BBU to the RAID Controller are securely connected.
Replace the BBU, or the RAID Controller if the stand-alone battery cannot be shipped.
Meanining of Cache Flush / Dirty Cache messages
exacqVision Server
This typically means that the RAID controller lost power/battery power during a write operation.
The RAID controller contains a small buffer for data being written to the hard drives. When the write has been confirmed, the cache is cleared.
If the machine lost power, this is a normal message, and is not of concern.
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A summary of system drive tests performed by exacqVision using evSelfTest, RAID controllers, and S.M.A.R.T. data.
On systems Built-by-Exacq (BBE), the exacqVision software runs the following tests: Using evSelfTest.exe:
RAID card consistency check, once every week.
On non-BBE systems:
How to Identify the MegaRAID Controller Model on an exacqVision Server
For various reason you may need to determine the model number of the RAID Controller Card.
Open a Command Prompt as Admin and run
"c:\Program Files (x86)\MegaRAID Storage Manager\storcli.exe" /c0 show all | findstr ModelOpen Terminal and run the following command
sudo storcli /c0 show all | grep ModelReplacing MegaRAID Storage Manager (MSM) With LSI Storage Authority (LSA) – Windows
MSM has been found to have some exposure to CVE-2021-44228, the Apache Log4j remote code execution vulnerability, see statement from Broadcom Log4j2 Exposure (CVE-2021-44228). As a result you may be able to replace MSM with LSA using the following instructions.
Identify the controller using Knowledge Base Article #7244 “How to Identify the MegaRAID Controller Model on an exacqVision Server”
92xx series RAID Controllers
Machines with 92xx series RAID controllers have the following options.
93xx series RAID Controllers
For Machines with 93xx series RAID controllers MSM should be replaced with LSA.
Hard Drive Issues Troubleshooting
The Volume and Hardware tabs or not present on the Storage page even though the server has a MegaRAID RAID controller and the drive is present on the Drive tab.
This can occur when the path to storcli is not present in the Windows system Path environmental variable. Use the following steps to correct.
The old Raid Expander Card number 690-00083 is no longer available, and needs to be replaced with 690-00101. ECN-171121-01 takes care of that for production.
However, if the old card goes bad in the field, the new card is not a drop-in replacement. The new card needs a new bracket and cables.
Client displays temperature alarms on hard drives.
These may indicate temperatures near 1° C, or between ~20000-30000° C.
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This behavior was seen from the following Western Digital HD models when connected to LSI storage controllers.
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Update the ExacqVision Server version to 9.3.9 or higher, also back-patched into 9.2 RC.
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