HP 2000SA G2-Modular-Smart-Array - Manual (Page 29)

Table 3 Graphing metrics for controllers
Available with P2000 G3
MSA firmware version Controller individual metrics Controller group metrics
TS200 or later
CPU Load (%)—Percentage of time the CPU is busy, from
0–100.
IOPs (Read,Write,Total)
nl .
nl Bytes per second
(Read,Write,Total)
nl
Write Cache Used (%)—Percentage of write cache in use,
from 0–100.
.
nl
Read IOPs—Read operations per second, calculated over
the interval since this statistic was last requested.
Average IO Size
(Read,Write,Total)
nl .
nl
Write IOPs—Write operations per second, calculated over
the interval since this statistic was last requested.
Cache Hit Ratio (Read,
Write)
Total IOPs—Read+Write operations per second, calculated
over the interval since this statistic was last requested.
Read Bytes per Sec—Data bytes read per second
calculated over the interval since this statistic was last
requested.
Write Bytes per Sec—Data bytes written per second
calculated over the interval since this statistic was last
requested.
Total Bytes per Sec—Data bytes transferred per second
calculated over the interval since this statistic was last
requested.
Avg Read Size—Average read transfer size over the
interval since this statistic was last requested.
Avg Write Size—Average write transfer size over the
interval since this statistic was last requested.
Avg IO Size—Average read and write transfer size over
the interval since this statistic was last requested.
TS230 or later
Read Cache Hits—For the controller that owns the volume,
the number of times the block to be read is found in cache.
Read Cache Misses—For the controller that owns the
volume, the number of times the block to be read is not
found in cache.
Read Cache Hit Ratio (%)—Percent of reads served from
cache since last counter reset.
Write Cache Hits—For the controller that owns the volume,
the number of times the block written to is found in cache.
Write Cache Misses—For the controller that owns the
volume, the number of times the block written to is not found
in cache.
Write Cache Hit Ratio (%)—Percent of writes served from
cache since last counter reset.
Viewing performance data 29