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May 23rd, 2011 13:00
control centre host agent
Hi
what are the key metrics the host agent can pull back in to control centre? Can it drill down in to a Database and retrive how much space is being used within a RAW disk?
any information would help
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seamuscoffey
472 Posts
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May 25th, 2011 07:00
Hi natsidan,
I'm not fully sure that I understand your question but in terms of metrics that the Host Agent can report on within Performance Manager, then here is the list (these can all be found in the Help section of PM):
Host CPU metrics
The following table lists and defines Host CPU Metrics.
% idle CPU
Percentage of time that the host CPU had been idle.
% io wait CPU
Percentage of time that the host CPU spent waiting for an I/O operation to complete.
% processor CPU
(% sys CPU) + (% user CPU) + (% io wait CPU)
Percentage of time the host CPU is busy.
% sys CPU
Percentage of time that the host CPU spent in system mode.
% user CPU
Percentage of time that the host CPU spent in user mode.
Host device metrics
The following table lists and describes the Host device metrics.
average queue
Average length of the queue for the device.
ios per sec
Number of I/O operations performed each second by the host device.
Kbytes read per sec
Number of kilobytes read each second by the host device.
Kbytes transferred per sec
(Kbytes read per sec) + (Kbytes written per sec)
Total number of kilobytes read and written each second by all of the host devices.
Kbytes written per sec
Number of kilobytes written each second by the host device.
reads per sec
Number of read I/O operations performed each second by the host devices.
response time (ms)
(service time (ms) + wait time (ms))
Total of service and wait time in milliseconds required by the host device.
service time (ms)
Amount of time in milliseconds spent servicing a request.
wait time (ms)
Average amount of time in milliseconds spent waiting before an I/O operation began.
writes per sec
Number of write I/O operations performed each second by the host device.
Host logical volume metrics
The following table lists and defines the host logical volume metrics.
The host logical volume statistics are only available if the Veritas Volume Manager is installed.
avg read time (ms)
Average time in milliseconds that it took the host logical volume to perform a read.
avg write time (ms)
Average time in milliseconds that it took the host logical volume to perform a write.
io per sec
(reads per sec) + (writes per sec)
Kbytes read per sec
Number of kilobytes read by the host logical volumes each second.
Kbytes transferred per sec
(Kbytes read per sec) + (Kbytes written per sec)
Number of kilobytes transferred each second to and from the host logical volume.
Kbytes written per sec
Number of kilobytes written each second to the host logical volume.
reads per sec
Number of read I/O operations performed each second by the host logical volume.
writes per sec
Number of write I/O operations performed each second by the host logical volumes.
Host HP device metrics
The following table lists and defines the HP device metrics.
average queue
Average length of the queue for the device.
ios per sec
Number of I/O operations performed each second.
Kbytes transferred per sec
Number of kilobytes transferred each second to and from the host logical volume.
response time (ms)
(service time (ms) + wait time (ms))
service time (ms)
Amount of time in milliseconds spent servicing a request.
wait time (ms)
Average amount of time in milliseconds spent waiting before an I/O operation began.
Host MVS device metrics
The following table lists and describes the MVS device metrics.
CONN (ms)
Volume connect time for each request in milliseconds.
DISC (ms)
Volume disconnect time for each request in milliseconds
ios per sec
Number of I/O operations performed each second.
IOSQ (ms)
IOS queue time for each request in milliseconds.
PEND (ms)
Pending time for each request in milliseconds.
reads per sec
Number of I/O read operations performed each second.
response time (ms)
Response time for each request in milliseconds.
writes per sec
Number of I/O write operations performed each second.