PI_LDSX

Ops Center Analyzer REST API Reference Guide

Version

11.0.x

Audience

anonymous

Part Number

MK-99ANA003-18

The PI_LDSX record stores the performance data indicating the performance of a volume.

Note that if you are monitoring a VSP 5000 series storage system, you cannot collect performance information about mainframe systems.

Note:

If the CU number of the target LDEV is not set to be monitored, the record will not be created.

Collection Interval

Access Type	Collection Interval
`1` or `3`	3600
`2` or `4`	300

Key Field

LDEV_NUMBER

Lifetime

From when the logical device is set up to when it is removed

Fields

Field Name	Description	Access Type	Format
BACK_IO_RATE²	Frequency of data transfer operations between cache memory and a hard disk drive (number of operations per second)	1, 2, 3, 4	double
CACHE_MEMORY_DISK_IO_RATE²	Frequency of data transfer operations from cache memory to a hard disk drive (number of operations per second)	1, 2, 3, 4	double
CFW_READ_HIT_RATE¹	Cache hit rate of read operations in Cache Fast Write mode for each volume	1, 3	float
CFW_READ_IO_RATE¹	Frequency of read operations in Cache Fast Write mode for each volume (number of operations per second)	1, 3	double
CFW_WRITE_HIT_RATE¹	Cache hit rate of write operations in Cache Fast Write mode for each volume	1, 3	float
CFW_WRITE_IO_RATE¹	Frequency of write operations in Cache Fast Write for each volume (number of operations per second)	1, 3	double
INPUT_RECORD_TYPE	Record type identifier, which is always set to LDSX	1, 2, 3, 4	char(8)
INTERVAL	Interval (in seconds) at which information is collected	1, 2, 3, 4	ulong
LDEV_NUMBER	Logical device number Example: 00:01:0F	1, 2, 3, 4	string(16)
RAID_GROUP_NUMBER	Parity group number	1, 3	string(64)
RANDOM_DISK_CACHE_IO_RATE²	Frequency of random data transfer operations from a hard disk drive to cache memory (number of operations per second)	1, 2, 3, 4	double
RANDOM_READ_HIT_RATE	Cache hit rate of random read operations for each volume	1, 2, 3, 4	float
RANDOM_READ_IO_RATE	Frequency of random read operations for each volume (number of operations per second)	1, 3	double
RANDOM_WRITE_HIT_RATE	Cache hit rate of random write operations for each volume	1, 3	float
RANDOM_WRITE_IO_RATE	Frequency of random write operations for each volume (number of operations per second)	1, 3	double
READ_HIT_RATE	Cache hit rate of read operations for each volume	1, 3	float
READ_IO_RATE	Frequency of read operations for each volume (number of operations per second)	1, 3	double
READ_RESPONSE_RATE	Average processing time per read operation request for each volume (in microseconds)	1, 3	double
READ_TOTAL_XFER_RATE	Transfer rate of operations for each volume (total kilobytes for read operations per second)	1, 3	double
RECORD_TIME	Time (in GMT) at which data was collected from the storage system and the record was created	1, 2, 3, 4	time_t
SEQUENTIAL_DISK_CACHE_IO_RATE²	Frequency of sequential data transfer operations from a hard disk drive to cache memory (number of operations per second)	1, 2, 3, 4	double
SEQUENTIAL_READ_HIT_RATE	Cache hit rate of sequential read operations for each volume	1, 2, 3, 4	float
SEQUENTIAL_READ_IO_RATE	Frequency of sequential read operations for each volume (number of operations per second)	1, 3	double
SEQUENTIAL_WRITE_HIT_RATE	Cache hit rate of sequential write operations for each volume	1, 3	float
SEQUENTIAL_WRITE_IO_RATE	Frequency of sequential write operations for each volume (number of operations per second)	1, 3	double
TOTAL_IO_RATE	Frequency of operations for each volume (total number of read and write operations per second)	1, 3	double
TOTAL_RESPONSE_RATE	Average processing time per read or write operation request for each volume (in microseconds)	1, 3	double
TOTAL_XFER_RATE	Transfer rate of operations for each volume (total kilobytes for read and write operations per second)	1, 3	double
WRITE_HIT_RATE	Cache hit rate of write operations for each volume	1, 3	float
WRITE_IO_RATE	Frequency of write operations for each volume (number of operations per second)	1, 3	double
WRITE_RESPONSE_RATE	Average processing time per write operation request for each volume (in microseconds)	1, 3	double
WRITE_TOTAL_XFER_RATE	Transfer rate of operations for each volume (total kilobytes for write operations per second)	1, 3	double
Notes: The value cannot be collected for VSP E series, VSP Gx00 models, and VSP Fx00 models storage systems. A value cannot be obtained for storage systems other than VSP One B20, VSP E series, VSP 5000 series (versions 90-02-01 and later), VSP G350, G370, G700, G900, VSP F350, F370, F700, F900 (versions from 88-03-31 to earlier than 88-04-00, or versions 88-04-02 and later).