Warning message from Disk Enclosure Power Supply and Fan units

Problem

Due to a firmware issue, Disk Enclosure Power Supply and Fan unit show non-critical warning messages and non-zero status.

Error Message

Please note the high RPM count from the speed of the fans and no-zero status both from fan and the power supply.

                         Enclosure 38 Fan Information  

+-----------------------------------------------------------------------------+
|ID |        Status        |   Speed    |   LowWaterMark    |   ErrorStatus   |
|---+----------------------+------------+-------------------+-----------------|
|1  |Non-critical          |8110 RPM    |2000 RPM           |1                |
|---+----------------------+------------+-------------------+-----------------|
|2  |Non-critical          |8010 RPM    |2000 RPM           |1                |
|---+----------------------+------------+-------------------+-----------------|
|3  |Device Present        |3260 RPM    |2000 RPM           |0                |
|---+----------------------+------------+-------------------+-----------------|
|4  |Device Present        |3060 RPM    |2000 RPM           |0                |
+-----------------------------------------------------------------------------+
 
                    Enclosure 38 Power Supply Information
+----------------------------------------------------------------------------+
| ID  |                  Status                  |        ErrorStatus        |
|-----+------------------------------------------+---------------------------|
|1    |Non-critical                              |1                          |
|-----+------------------------------------------+---------------------------|
|2    |Presence detected                         |0                          |
+----------------------------------------------------------------------------+

 

Cause

Firmware problem with appliances running firmware version 6.12.0000.00 or older.

Please note that this problem applies to integrated Fan and Power Supply Unit in the Disk Expansion Cabinet for 5220 only, it does not apply to the Fans in the 5220 Chassis itself.

 

Solution

For versions 2.0.2, 2.0.3, 2.5, 2.5.1 get the EEB from Etrack 2893954 that copies the script containing the sg_senddiag commands to the appliance system when implemented. The EEB for 2.6.0.1 is ET3424113.  For 2.6.0.2, please access the Related Article linked below.

The script will automatically run against the correct device based on which Storage Shelf (if two are attached) has got the problem and will fix the issue.

Please note that this is a temporary solution, and the problem can reoccur, and if it reoccurs, the script will automatically run again.

If there is any any delay or issue in implementing the above EEB, the sg_senddiag commands can be executed manually against the device reporting the problem.

Steps are shown below:

1. Run the following command and identify the /dev/sg address of the Storage Shelf that reports the problem:

lsscsi -g

Example below:

In this example, there are two Storage Shelves are attached to the main unit of the appliance, let's assume the highlighted one reported the problem, so the device address is /dev/sg1:

[0:2:0:0]    disk    Intel    MegaSR           1.0   /dev/sda   /dev/sg0
[1:0:41:0]   enclosu Promise  J630s            060:  -         /dev/sg1
[1:0:75:0]   enclosu Promise  J630s            060<  -         /dev/sg2
[1:2:0:0]    disk    INTEL    RS2PI008         2.12  /dev/sdb   /dev/sg3
[1:2:1:0]    disk    INTEL    RS2PI008         2.12  /dev/sdc   /dev/sg4
[2:0:0:0]    enclosu ESG-SHV. SCA HSBP M9..... 2.11  -         /dev/sg5
[2:2:0:0]    disk    INTEL    SROMBSASMP2      1.40  /dev/sdd   /dev/sg6
 
2. Run the following commands against /dev/sg1:
 
 a.      Disable thermal management:
sg_senddiag --pf --raw=a2,00,00,04,00,00,00,00 /dev/sg1 -vv
 
b.     Adjust Fan speed to level 3 first:
sg_senddiag --pf --raw=a6,00,00,0c,04,00,03,00,03,00,03,00,03,00,00,00 /dev/sg1 -vv
 
c..      Adjust Fan speed to level 0:
sg_senddiag --pf --raw=a6,00,00,0c,04,00,00,00,00,00,00,00,00,00,00,00 /dev/sg1 -vv
 
d.     Enable thermal management:
                sg_senddiag --pf --raw=a2,00,00,04,03,03,00,00 /dev/sg1
 
Then run ‘Monitor > Hardware Enclosure’ to see the result.
 
The outcome should now be shown as follows, note that the RPM count of the fan speed is now set back to normal and the status is 0. Same with the power supply, the status is now 0.
 
                         Enclosure 24 Fan Information
+-----------------------------------------------------------------------------+
|ID |        Status        |   Speed    |   LowWaterMark    |   ErrorStatus   |
|---+----------------------+------------+-------------------+-----------------|
|1  |Device Present        |3360 RPM    |2000 RPM           |0                |
|---+----------------------+------------+-------------------+-----------------|
|2  |Device Present        |3360 RPM    |2000 RPM           |0                |
|---+----------------------+------------+-------------------+-----------------|
|3  |Device Present        |3360 RPM    |2000 RPM           |0                |
|---+----------------------+------------+-------------------+-----------------|
|4  |Device Present        |3260 RPM    |2000 RPM           |0                |
+-----------------------------------------------------------------------------+
                    Enclosure 24 Power Supply Information
+----------------------------------------------------------------------------+
| ID  |                  Status                  |        ErrorStatus        |
|-----+------------------------------------------+---------------------------|
|1    |Presence detected                         |0                          |
|-----+------------------------------------------+---------------------------|
|2    |Presence detected                         |0                          |
+----------------------------------------------------------------------------+
 
 

Applies To

NetBackup 5220 Appliances version 2.0.2, 2.0.3, 2.5, 2.5.1, 2.6.0.1 and 2.6.0.2 with Symantec Storage Shelf connected.

 

Terms of use for this information are found in Legal Notices.

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