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2 Transfer Length Graph shows Transfer length (Y) against Entry Number (X). In this
case as all transfers were 1024 Bytes so the graph is a straight line.
3 Cache Access time shows the amount of time allowed to the Cache (Y) against the
Entry Number (X). This graph is likely to be non-‐linear.
4 Command Execution Time displays the time it took to complete the command (Y)
against the Entry Number (X). This graph is also likely to be non-‐linear.
5 Data Transfer Rate displays the average Megabytes per second for a transfer (Y)
against the Entry Number (X).
6 Command Transfer Rate shows the average Megabytes per second for a command
(Y) against the Entry Number (X).
7 The number of Write Backs (Y) against Entry Number (X).
8 The number of Read Aheads (Y) against Entry Number (X).
9 The number of Non-‐Real Time Commands (Y) against the Entry Number (X).
10 The number of Dirty Cache Segments (Y) against the Entry Number (X).
Below Trace there is a small table to manage the Log File for the QOS RAID system. Click-‐
ing the ‘Display’ button will display the Log file for the entire system. Our technical sup-‐
port team uses these logs to troubleshoot the QOS RAID. The Reset button clears the cur-‐
rently recorded Log and starts out new.
Clicking Display will show a list of the operations that took place on the system along with
their date and time. QOS technical support will instruct you on how to save logs for trou-‐
bleshooting purposes.
2.7 Users
The User Details menu shows a list of the current sessions, providing options to create
Users and promote Real Time Users. The Sessions table describes the users connected to
the QOS RAID and their WWNs (World Wide Names). Creating a user makes it easier to
identify a connected computer system, but it is not required. To create a user, fill out the
Name and WWN columns in the Users table with the information from ‘Session Status’
and click the Create button. The delete button will remove that user from the list non-‐
QOS 8-Bay User Manual
QOS Server is a subsidary of Ocean Tides Productions Ltd. © Copyright 2013
