Detailed SAN Controller Protocol Statistics Descriptions

Provides detailed statistics about Fibre Channel (FC) or iSCSI ports on a Controller.

The detailed information includes descriptions of both FC and iSCSI ports on a Controller. Content that is specific to either an FC or iSCSI port is noted in the description.

Name: Identifies the name of the Controller.
Slot: Identifies the HBA location (slots 1, 4, and 5) on the Controller.
Port Number: Identifies the HBA port numbers on the Controller.
Port Type: Identifies the HBA port type.

General Information

Read Throughput: Identifies the data transfer rate for data inputs (reads).
Write Throughput: Identifies the data transfer rate for data outputs (writes).
Total Throughput: Identifies the average combined input and output data transfer rates (reads and writes).
Total IOPS: Identifies the total number of I/O operations per second.

Performance

Max Read Throughput: Identifies the maximum input data transfer rate (reads).
Max Write Throughput: Identifies the maximum output data transfer rate (writes).
Max Total Throughput: Identifies the maximum combined input and output data transfer rate (reads and writes).
Max Read IOPS: Identifies the maximum number of input (read) I/O operations per second.
Max Write IOPS: Identifies the maximum number of output (write) I/O operations per second.
Max Total IOPS: Identifies the maximum total number of input and output (read and write) I/O operations per second.

SCSI Task Management Operations

Abort Task

Indicates the number of abort task commands processed on the selected port.

Abort Task Set

Indicates the number of abort task set commands processed on the selected port.

A task set is a group of tasks.

Clear ACA

Indicates the number of Clear ACA (Auto Contingent Allegiance) commands processed on the selected port.

Clear Task Set

Indicates the number of clear task set commands processed on the selected port.

Logical Unit Reset

Indicates the number of reset logical unit commands processed on the selected port.

Target Reset

Indicates the number of target reset commands processed on the selected port.

I/O Latency

Specifies the average time to complete a read or write operation (in milliseconds) and the average operation size (in KB).

Read Response Time: Identifies the average time to perform a read operation in the last sample period.
Write Response Time: Identifies the average time to perform a write operation in the last sample period.
Response Time: Identifies the average time to perform a read or write operation in the last sample period.
Read Operation Size: Identifies the average size of a read operation in the last sample period.
Write Operation Size: Identifies the average size of a write operation in the last sample period.

FC Only

Channel Errors

Total Channel Errors: Indicates the total number of channel errors associated with this port.
Command Timeout Errors: Indicates the number of command timeout errors that have occurred on the channel associated with this port.
DMA Errors: Indicates the number of Direct Memory Access (DMA) errors that have occurred on the channel associated with this port.
Invalid RXID Errors: Indicates the number of invalid responder exchange identifier (RXID) errors that have occurred on the channel associated with this port.
Loop Init Errors: Indicates the number of loop initialization errors that have occurred on the channel associated with this port.
Overrun Errors: Indicates the number of overrun errors that have occurred on the channel associated with this port.
PCI Errors: Indicates the number of Peripheral Component Interconnect (PCI) errors that have occurred on the channel associated with this port.
Port Unavailable Errors: Indicates the number of port unavailable errors that have occurred on the channel associated with this port.
Reselection Timeout Errors: Indicates the number of reselection timeout errors that have occurred on the channel associated with this port.
Bad Frame Errors: Indicates the number of frames dropped from first-in or first-out buffer that have occurred on the channel associated with this port.
System Errors: Indicates the number of system errors that have occurred on the channel associated with this port.
Unacknowledged Host Event Errors: Indicates the number of unacknowledged host event errors that have occurred on the channel associated with this port.
Underrun Errors: Indicates the number of underrun errors that have occurred on the channel associated with this port.
Transfer Errors: Indicates the number of data transfer errors that have occurred on the channel associated with this port.

iSCSI Only

iSCSI Port Errors

Underrun Errors: Indicates the number of underrun errors during the collection period.
Overrun Errors: Indicates the number of overrun errors during the collection period.
Command Timeout Errors: Indicates the number of command timeout errors during the collection period.
DMA Errors: Indicates the number of Direct Memory Access (DMA) errors during the collection period.
Transport Errors: Indicates the number of transport errors during the collection period.
Device Unavailable Errors: Indicates the number of device unavailable errors during the collection period.
Data Digest Errors: Indicates the number of data digest errors during the collection period.
Header Digest Errors: Indicates the number of header digest errors during the collection period.
Invalid Snack Errors: Indicates the number of invalid SNACK (selective negative acknowledgment) errors during the collection period.
Unsolicited Data Errors: Indicates the number of unsolicited data errors, which are SCSI writes which include data but immediate data is disabled because the total data string would exceed the burst length, during the collection period.
Unexpected Data SN Errors: Indicates the number of unexpected data storage network (SN) errors caused from data sequence number in the Protocl Data Unit (PDU) during the collection period.
Initiator Task Tag Errors: Indicates the number of initiator task tag errors during the collection period.
System Errors: Indicates the number of system errors during the collection period.
MAC CRC Errors: Indicates the number of Media Access Control Cyclic Redundancy Check (MAC CRC) errors during the collection period.
MAC Encoding Errors: Indicates the number of MAC encoding errors during the collection period.
iSNS Errors: Indicates the number of Internet storage name service (iSNS) errors during the collection period.
Command PDUs Rejected: Indicates the number of command Protocol Data Unit (PDUs) rejected during the collection period.
Connection Failures: Indicates the number of connection failures during the collection period.
Session Login Failures: Indicates the number of session login failures during the collection period.
FW Dump Errors: Indicates the number of firmware (FW) dump errors during the collection period.

iSCSI Port Requests

Reinitialize Requests: Indicates the number of re-initialization requests during the collection period.
Target Cold Reset Requests: Indicates the number of cold target reset requests during the collection period. A target cold reset cancels all pending operations.
Task Reassign Requests: Indicates the number of task reassign requests during the collection period. A task reassign creates a new allegiance connection for the task.
ISNS Messages: Indicates the number of Internet Storage Name Service (iSNS) messages during the collection period.

iSCSI Port Events

Link Up Events: Indicates the number of link up events during the collection period.
Link Down Events: Indicates the number of link down events during the collection period.
IP Address Change Events: Indicates the number of IP address change events during the collection period.
Duplicate IP Address Events: Indicates the number of duplicate IP address events during the collection period.