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Internal Diagnostic Message Level:
More explicitly, this value determines what you
want the internal diagnostics to log. Here are the values and what they do:
Disabled:
Do not log anything.
Requests:
Only log read/write requests.
State Started:
Only log state engine starts.
State Ended:
Only log state engine completions.
BIO Started:
Only log Block I/O starts.
BIO Ended:
Only log Block I/O completions.
Cache Monitor:
The cache.
Debug Monitor:
Debugging.
Performance:
Monitor performance.
Target
: Monitor targets.
Silent Data Corruption:
Monitor for the problem described under PQ Verification.
The Display button on the bottom of the table, displays the diagnostic message log. Note
that it is important that this function only be used when directed to do so, and it must be
disabled when not in use, otherwise it would fill up the boot drive.
2.9 Datarate Statistics
The QOS has very powerful tools to monitor current system performance over time in re-‐
lation to earlier data recordings. Data Rate Statistics from the main NumaRAID menu
presents stats for the overall NumaRAID system, User IO, as well as RAID, LUN, and
Adapter traffic. The graphs are divided into three groups of six that represent the same
data values recorded at different times (a day ago, an hour ago, etc.). The Datarate Op-‐
tions table is used to define the device that the graphs will reference. To see statistics for
a certain category click the Chart button beside it. All graphs display red bars as write
operations and green as reads.
QOS 8-Bay User Manual
QOS Server is a subsidary of Ocean Tides Productions Ltd. © Copyright 2013
