NEC Storage Performance Monitor/Optimizer User Manual page 173

Appendix C Report Format of Performance Report Editor
w.ratio
cache hit
busy
rank no
(6) Physical disk performance detail report
Chronologically displays disk-based statistic information on the physical disk extracted from the
statistic information file.
20020927NECStorages4200_psa_pd.txt).
<< PHYSICAL DISK PERFORMANCE REPORT >>
disk array name NECStorage4100
disk no = 00h-00h
date time ---------- iops ---------- ------ trrate(MB/s) ------ ------- av.len(KB) ------- ------ av.resp(ms) ------- w.ratio(%)
total read
01-05-29 18:17 36.75 20.07
01-05-29 18:22 54.24 29.89
* 01-05-29 18:27 56.62 31.06
01-05-29 18:32 53.87 30.28
: : : :
disk no = 00h-01h
date time ---------- iops ---------- ------ trrate(MB/s) ------ ------- av.len(KB) ------- ------ av.resp(ms) ------- w.ratio(%)
total read
01-05-29 18:17 34.64 19.03
01-05-29 18:22 51.48 28.52
* 01-05-29 18:27 53.77 29.63
01-05-29 18:32 50.76 28.74
: : : :
disk no = xxh-xxh
:
:
PERFORMANCE REPORT SUCCESSFUL.
Ratio (percent) of write I/O in the accumulation period
Ratio (percent) of cache-hit I/O in the accumulation period
read: Ratio (percent) of cache-hit read I/O
prefetch: Ratio (percent) of prefetch-hit read I/O among cache-hit read I/O
write: Ratio (percent) of cache-hit write I/O
Average busy ratio (percent) in the accumulation period.
'***.**' is displayed if the information of the busy ratio does not exist.
RANK number that applicable LD currently belong to. In multi-RANK
configuration, all RANK numbers are listed.
Below is shown a display image (file name:
write total read write
16.68 1.66 1.04 0.63
24.35 2.50 1.58 0.92
25.56 2.59 1.63 0.96
23.59 2.42 1.54 0.88
: : : :
write total read write
15.61 1.66 1.04 0.62
22.97 2.48 1.57 0.91
24.15 2.58 1.62 0.95
22.02 2.41 1.54 0.87
: : : :
44
total read write total
46.37 52.96 38.44 7.76
47.27 54.27 38.68 7.66
46.87 53.81 38.45 7.56
45.94 52.01 38.15 7.52
: : : :
total read write total
48.96 55.76 40.68 7.60
49.32 56.45 40.45 7.45
49.10 56.13 40.46 7.40
48.64 54.77 40.65 7.32
: : : :
read write
8.04 7.43 45.38
7.86 7.43 44.90
7.80 7.26 45.15
7.65 7.35 43.79
: : :
read write
7.91 7.22 45.06
7.67 7.18 44.61
7.57 7.19 44.90
7.34 7.30 43.38
: : :