IBM Storwize V7000 Unified Problem Determination Manual page 248

Table 62. Cache statistics collection for volumes and volume copies (continued)
Statistic Acronym
read misses r
read hits rh
flush_through ft
writes
fast_write fw
writes
write_through wt
writes
write hits wh
prefetches p
prefetch hits ph
(prefetch data
that is read)
prefetch misses pm
(prefetch pages
that are
discarded
without any
sectors read)
modified data m
read and write v
cache data
destages d
fullness fav
Average
fullness Max fmx
fullness Min fmn
Destage Target dtav
Average
Destage Target dtmx
Max
Destage Target dtmn
Min
220
Storwize V7000 Unified: Problem Determination Guide 2073-720
Statistics for Statistics for
volume volume
cache copy cache
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes
Yes
Yes
Yes Yes
Yes Yes
Yes Yes
Statistics for Statistics for
volume volume
cache copy cache
partition partition
Yes Yes
Yes Yes
Yes Yes
Yes
Yes
Yes
Statistics for
the Node Cache
Overall statistics for
Cache mdisks
Yes
Units and
state
sectors,
cumulative
sectors,
cumulative
sectors,
cumulative
sectors,
cumulative
sectors,
cumulative
sectors,
cumulative
sectors,
cumulative
sectors,
cumulative
pages,
cumulative
sectors,
snapshot,
non-
cumulative
sectors
snapshot,
non-
cumulative
sectors,
cumulative
%,
non-
cumulative
%,
non-
cumulative
%,
non-
cumulative
IOs capped
9999,
non-
cumulative
IOs,
non-
cumulative
IOs,
non-
cumulative