Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 106)

Chapter 2. CLI Syntax Reference
98 3ware SATA+SAS RAID Controller Card CLI Guide, Version 10.2
/c1/p2 Status = OK
/c1/p2 Model = SEAGATE ST936701SS
/c1/p2 Firmware Version = 0002
/c1/p2 Serial = 3LC0DB25
/c1/p2 Capacity = 34.18 GB (71687371 Blocks)
/c1/p2 WWN = 5000c500003ac760
/c1/p2 Drive Type = SAS
/c1/p2 Interface Type = Direct
/c1/p2 Drive Ports = 2
/c1/p2 Drive Connections = 1
/c1/p2 Reallocated Sectors = 0
/c1/p2 Power On Hours = 0
/c1/p2 Temperature = 44 deg C
/c1/p2 Spindle Speed = 10000 RPM
/c1/p2 Link Speed Supported = 1.5 Gbps and 3.0 Gbps
/c1/p2 Link Speed = 3.0 Gbps
/c1/p2 Queuing Supported = Yes
/c1/p2 Queuing Enabled = Yes
/c1/p2 Identify Status = N/A
/c1/p2 Belongs to Unit = N/A
/cx/px show dpmstat type=inst|ra|lct|histdata|ext
The /cx/px show dpmstat type command allows you to request drive
performance statistics of the specified type for the specified port. These
statistics can be helpful when troubleshooting related problems.
type= specifies which statistics should be reported. The options are: inst for
Instantaneous, ra for Running Average, lct for Long Command Times,
histdata for Histogram Data, and ext for Extended Drive Statistics.
inst (Instantaneous). The inst is a measure of a short duration average.
ra (Running Average). Running average is a measure of long-term averages.
The measure smooths the data, and results in older data fading from the
average over time.
ext (Extended Drive Statistics). The extended drive statistics refers to
statistics of a drive's read commands, write commands, write commands with
Force Unit Access (FUA), flush commands, and a drive sectors's read, write,
and write commands with FUA.
lct (Long Command Times). The lct is a collection of the commands with
the longest read/write response time.
histdata (Histogram Data). The histogram categorizes the read/write
execution times and groups them together based on time frames.
Summaries of the statistics for all drives on a controller are also available for
the inst, ra, and ext statistics by using the command “/cx show dpmstat
[type=inst|ra|ext]” on page 36. For more information, see “Drive Performance