Displaying Fibre Channel statistics

Server and Cluster Administration Guide for Hitachi NAS Platform

Version
15.1.x
Audience
anonymous
Part Number
MK-92HNAS010-35
Navigate to Home > Storage Management > Fibre Channel Statistics to display the Fibre Channel Statistics page.


Field/Item Description
Cluster Nodes When connected to a cluster, this field indicates the node for which the statistics are displayed. To display statistics for another node, click the change button.
change Displays the Select a Cluster Node page, on which you can select a different node for which to display statistics.
Last Reset Displays the date and time the statistics on this page were reset. To reset the statistics to zero, click the reset button.
Last Refreshed Displays the date and time this page was refreshed. The page automatically refreshes every 10 seconds.
Throughput
Receive Rate The amount of data received in bytes per second. Includes the Last, Peak, and Total throughput.
Transmit Rate The amount of data transmitted in bytes per second. Includes the Last, Peak, and Total throughput.
I/O Requests
Disk Reads The number of read requests that the attached disk devices have received, and the number of responses sent.
Disk Writes The number of write requests that the attached disk devices have received, and the number of responses sent.
Tape Reads The number of read requests that the attached tape devices have received, and the number of responses sent.
Tape Writes The number of write requests that the attached tape devices have received, and the number of responses sent.
Total Requests and Responses The number of data requests that the server has received, and the number of responses it has sent out. These include both requests that have been sent to the storage devices and requests that the cache has served internally.
Cache Number of hits (requests that the cache has served) and misses (requests not served by the cache and passed to the storage subsystem).
I/O Status Counters Numbers of failed and resubmitted input and output requests.
Total Errors Number of errors logged at the Fibre Channel interface. The following types of errors are reported: Loss of Signal, Bad Receive Character, Loss of Sync, Link Fail, Receive EOFa, Discarded Frames, BAD CRCs, and Protocol Errors.
Congestion Displays congestion rates. Includes the Last, Peak (over the past 24 hours), and Average (average over the past 24 hours) rates.