Fujitsu ETERNUS DX100 S3 - Page 112

Table B.2 Logical Volume Performance Information for Disk Storage System
Items Explanation
File name LogicalVolume/ nnnn .csv
( nnnn indicates the Logical Volume number by hexadecimal notation.)
Header line Date, LogicalVolume0x XXXX - Read IOPS,
LogicalVolume0x XXXX - Write IOPS,
LogicalVolume0x XXXX - Read Throughput,
LogicalVolume0x XXXX - Write Throughput,
LogicalVolume0x XXXX - Read Response Time,
LogicalVolume0x XXXX - Write Response Time,
LogicalVolume0x XXXX - Read Cache Hit Rate,
LogicalVolume0x XXXX - Write Cache Hit Rate,
LogicalVolume0x XXXX - Prefetch Cache Hit Rate,
LogicalVolume0x XXXX - Read Cache Hit Rate(Extreme Cache),
LogicalVolume0x XXXX - Read Cache Hit Rate(DRAM + Extreme Cache),
LogicalVolume0x XXXX - Read QoS Delay Time,
LogicalVolume0x XXXX - Write QoS Delay Time
Data line date , read , write , through-r , through-w , resp-r , resp-w , hit-r , hit-w , fetch ,
hit-r-extreme-cache , hit-r-dram-extreme-cache , delay-r-qos , delay-w-qos
The following information is output for each field.
date : Performance Information Acquisition Time. (YYYY/MM/DD hh:mm:ss format)
read : Read Count at date . (Decimal notation. The unit is IOPS.)
write : Write Count at date . (Decimal notation. The unit is IOPS.)
through-r : Read data transfer rate at date . (Decimal notation. The unit is MB/s.)
through-w : Write data transfer rate at date (Decimal notation. The unit is MB/s.)
resp-r : Read Response Time at date . (Decimal notation. The unit is msec.)
resp-w : Write Response Time at date . (Decimal notation. The unit is msec.)
hit-r : Read Cache Hit Rate at date . (Decimal notation. The unit is %.)
hit-w : Write Cache Hit Rate at date . (Decimal notation. The unit is %.)
fetch : Read Pre-fetch Cache Hit Rate at date . (Decimal notation. The unit is %.)
hit-r-extreme-cache : Read Cache Hit Rate at date . (Extreme Cache) (Decimal notation. The unit is %.) (*1,
*2)
hit-r-dram-extreme-cache : Read Cache Hit Rate at date . (DRAM + Extreme Cache) (Decimal notation. The
unit is %.) (*1, *2)
delay-r-qos : Read QoS Delay Time at date . (Decimal notation. The unit is msec.) (*3)
delay-w-qos : Write QoS Delay Time at date . (Decimal notation. The unit is msec.) (*3)
*1: For a device that does not support Extreme Cache performance information, a value will not be output and instead a series of
commas will be output.
Example: For a device that does not support Extreme Cache performance information
...,hit-r-extreme-cache,hit-r-dram-extreme-cache
...,,
*2: When this function is disabled for a device that supports Extreme Cache performance information, "0" will be output.
Example: For a device that supports Extreme Cache performance information (function disabled)
...,hit-r-extreme-cache,hit-r-dram-extreme-cache
...,0,0
*3: For a device that does not support Host-LU QoS performance information (QoS Delay Time), a value will not be output and instead
a series of commas will be output.
Example: For a device that does not support Host-LU QoS performance information
...,delay-r-qos,delay-w-qos
...,,
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