PI_PLTI

Ops Center Analyzer REST API Reference Guide

Version
11.0.x
Audience
anonymous
Part Number
MK-99ANA003-18

The PI_PLTI record stores performance data indicating the execution status of read and write processing for each type of tier for Dynamic Provisioning pools that have tier management enabled. This is a multi-instance record.

Note:
  • Information about Copy-on-Write Snapshot pools, Thin Image pools and Dynamic Provisioning pools that do not have tier management enabled is not collected.
  • RAID Agent does not collect information about a blocked Dynamic Provisioning pool except when the pool is blocked because of its usage rate reaching 100%.

Collection Interval

900

Key Fields

POOL_ID and TIER_TYPE

Lifetime

From the time when a Dynamic Provisioning pool that has tier management enabled is set up until the time when the pool is removed.

Fields

Field Name

Description

Access Type

Format

AVG_IO_RATE

Average read and write processing rate (number of times per second) for the tier, excluding cache hits. The average number of backend I/O for the tier is displayed.

For the entire pool (when the value of the TIER_TYPE field is _Total), average read and write processing rate (number of times per second) in the pool is displayed.

In this case, the average total number of backend I/O for the tiers in the pool is displayed.

1, 2

double

INPUT_RECORD_TYPE

Record type identifier. The value is always PLTI.

1, 2

string(8)

INTERVAL

Interval (in seconds) at which information was collected

1, 2

ulong

POOL_ID

ID of the pool

1, 2

string(8)

RECORD_TIME

Time (in GMT) that the data was collected from the storage system and the record was generated

1, 2

time_t

TIER_NUMBER

Number of the tier.

For the entire pool (when the value of the TIER_TYPE field is _Total), a null string is displayed.

1, 2

string(8)

TIER_TYPE

Type of the tier.*

When the value is _Total, this record displays information about the entire pool (summary information about tiers in the pool).

1, 2

string(32)

* FMC is the value to be stored when the drive type is FMC, FMD DC2, or FMD HDE. SSD Mixed is the value to be stored when different types of flash drives exist.