IBM Storwize V7000 Unified Problem Determination Guide

Table 62. Cache statistics collection for volumes and volume copies (continued)
Statistic Acronym
Statistics for
volume
cache
Statistics for
volume
copy cache
Statistics for
volume
cache
partition
Statistics for
volume
copy cache
partition
Statistics for
the Node
Overall
Cache
Cache
statistics for
mdisks
Units and
state
Destage In
Flight
Average
dfav Yes Yes IOs capped
9999,
non-
cumulative
Destage In
Flight Max
dfmx Yes IOs,
non-
cumulative
Destage In
Flight Min
dfmn Yes IOs,
non-
cumulative
destage latency
average
dav Yes Yes Yes Yes Yes Yes µs capped
9999999,
non-
cumulative
destage latency
max
dmx Yes Yes Yes µs capped
9999999,
non-
cumulative
destage latency
min
dmn Yes Yes Yes µs capped
9999999,
non-
cumulative
destage count dcn Yes Yes Yes Yes Yes ios,
non-
cumulative
stage latency
average
sav Yes Yes Yes µs capped
9999999,
non-
cumulative
stage latency
max
smx Yes µs capped
9999999,
non-
cumulative
stage latency
min
smn Yes µs capped
9999999,
non-
cumulative
stage count scn Yes Yes Yes ios,
non-
cumulative
prestage
latency
average
pav Yes Yes µs capped
9999999,
non-
cumulative
prestage
latency max
pmx Yes µs capped
9999999,
non-
cumulative
prestage
latency min
pmn Yes µs capped
9999999,
non-
cumulative
prestage
count
pcn Yes Yes ios,
non-
cumulative
Chapter 5. Control enclosure 221

IBM Storwize V7000 Unified Specifications

General

Model	IBM Storwize V7000 Unified
Storage Type	Unified Storage
RAID Levels	RAID 0, 1, 5, 6, 10
Form Factor	2U
Drive Types Supported	SAS, SSD
Maximum Drives	504
Network Protocols	iSCSI, FC, FCoE
Drive Bays	24 per enclosure
Host Interface	8 Gb FC, 1 Gb/10 Gb iSCSI
File Protocols	NFS, CIFS
Block Protocols	iSCSI, Fibre Channel
Type	Unified Storage
Maximum Host Ports	16
Operating System Support	VMware, Microsoft Windows, Linux, AIX
Data Services	Thin provisioning, replication
Power Supply	Redundant power supplies
Host Interfaces	8 Gbps Fibre Channel, 10 Gbps iSCSI, 1 Gbps iSCSI