PD_VVTC

Ops Center Analyzer REST API Reference Guide
Version
11.0.x
Audience
anonymous
Part Number
MK-99ANA003-18

The PD_VVTC record stores performance data indicating the operation status of the virtual volume for each tier type of a Dynamic Provisioning pool that has tier management enabled. This is a multi-instance record.

Note:
  • RAID Agent does not collect information about a Copy-on-Write Snapshot V-VOL, a Thin Image V-VOL, or a Dynamic Provisioning V-VOL that has tier management disabled.
  • If the Dynamic Provisioning pool to which the Dynamic Provisioning V-VOL belongs is blocked, RAID Agent does not collect information about the V-VOL. However, if the Dynamic Provisioning pool is blocked because the usage rate of the pool capacity is 100%, RAID Agent collects information about the V-VOL.
  • RAID Agent does not collect information about the V-VOLs that are not associated with the Dynamic Provisioning pool.

Collection Interval

3600

Key Fields

LDEV_NUMBER and TIER_TYPE

Lifetime

From the time the Dynamic Provisioning V-VOL that has tier management enabled is set up to when it is removed.

Fields

Field Name

Description

 Access Type

Format

COLLECTION_TIME

Time (in GMT) at which the data was collected from the storage system.

 1, 2

time_t

DISPLAY_DRIVE_TYPE

Type of tier (display name).

 1, 2

string(32)

INPUT_RECORD_TYPE

Record type identifier, which is always set to VVTC.

 1, 2

string(8)

INTERVAL

Interval (in seconds) at which information is collected.

 1, 2

ulong

LDEV_NUMBER

Logical device number of the V-VOL.

 1, 2

string(16)

POOL_ID

ID of the pool.

 1, 2

string(8)

RECORD_TIME

Time (in GMT) at which the record was stored.

 1, 2

time_t

TIER_NUMBER

Tier number.

 1, 2

string(8)

TIER_TYPE

Tier type.2

 1, 2

string(32)

USAGE_RATE

Of the virtual capacity of the V-VOL, the percentage of the capacity used by the tier.1

The value is calculated based on the following formula:

(PD_VVTC_USED_CAPACITY / PD_VVC_VIRTUAL_VOLUME_CAPACITY) * 100

 1, 2

float

USED_CAPACITY

Of the virtual capacity of the V-VOL, the actual amount of V-VOL capacity used by the tier (MB).1

 1, 2

double

Notes:

  1. This value differs from the device capacity information that is recognized by the host because this information is managed by the storage system.
  2. FMC is the value stored when the drive type is FMC, FMD DC2, or FMD HDE. SSD Mixed is the value stored when different types of flash drives exist.