System information

Using the RAID GUI
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2.11.3 LUN
This feature allows you to enable, disable, or reset LUN IO logging.
When LUN IO logging is enabled, the following IO statistics of a LUN (depending on the storage presentation method
selected) will be displayed. You can press the Reset button to clear all statistics except outstanding IO to zero.
Click to see a complete list of LUN information. You will see the specified LUN ID and its histogram output in the
following sectors.
The histogram output shows the sizes that the read and write commands return.
2.11.4 Storage port
This feature allows you to enable, disable, or reset storage port IO logging.
When storage port IO logging is enabled, the following statistics of a FC ports or SAS port will be displayed. You can
press the Reset button to clear all statistics to zero.
Category Display
ID Storage group and LUN identifier
Read Command (sector)
The number of read commands executed since the disk was powered on
The accumulated transfer size of read commands since the disk was powered on
Write Command (sector)
The number of write commands executed since the disk was powered on
The accumulated transfer size of write commands since the disk was powered on
Response Time (ms)
The average command response time since the disk was powered on
The maximum command response time since the disk was powered on
Outstanding IO The number of current outstanding IO
Note
When the redundant-controller system is in use, all the LUN statistics information in both controllers
(Controller A and B) will be displayed on the screen.
• LUN ID
• 1 Sector
• 2 Sector
• 4 Sector
• 8 Sector
• 16 Sector
• 32 Sector
• 64 Sector
• 128 Sector
• 256 Sector
• 512 Sector
Category Display
HTP ID FC/SAS port identifier
Link Failure Count
The value of the LINK FAILURE COUNT field of the Link Error Status Block for the
port
Loss of Sync Count
The value of the LOSS-OF-SYNCHRONIZATION COUNT field of the Link Error
Status Block for the port
Loss of Signal Count
The value of the LOSS-OF-SIGNAL COUNT field of the Link Error Status Block for
the port
Invalid TX Word Count
The value of the INVALID TRANSMISSION WORD field of the Link Error Status
Block for the port
Invalid CRC Count
The value of the INVALID CRC COUNT field of the Link Error Status Block for the
port