SNAP_ID

NUMBER

NOT NULL

Unique snapshot ID

DBID

NUMBER

NOT NULL

Database ID for the snapshot

INSTANCE_NUMBER

NUMBER

NOT NULL

Instance number for the snapshot

INSTANCE

NUMBER

NOT NULL

Instance from which the blocks are transferred

CLASS

VARCHAR2(18)

NOT NULL

Class of the cache block

CR_BLOCK

NUMBER

CR block transfers not affected by remote processing delays

CR_BUSY

NUMBER

Current block transfers affected by remote contention

CR_CONGESTED

NUMBER

CR block transfers affected by remote system load

CURRENT_BLOCK

NUMBER

Current block transfers not affected by remote processing delays

CURRENT_BUSY

NUMBER

Current block transfers affected by remote contention

CURRENT_CONGESTED

NUMBER

Current block transfers affected by remote system load

LOST

NUMBER

The number of blocks that were sent by a particular instance but that never arrived in this instance

CR_2HOP

NUMBER

The count of CR blocks which were received by this instance from a particular instance after a 2-way round-trip

CR_3HOP

NUMBER

The count of CR blocks which were received by this instance from a particular instance after a 3-way round-trip

CURRENT_2HOP

NUMBER

The count of current blocks which were received by this instance from a particular instance after a 2-way round-trip

CURRENT_3HOP

NUMBER

The count of current blocks which were received by this instance from a particular instance after a 3-way round-trip

CR_BLOCK_TIME

NUMBER

Total time waited for CR blocks from a particular instance (includes the other times)

CR_BUSY_TIME

NUMBER

The time waited for CR blocks which were received by this instance from a particular instance and which were delayed by a log flushed on the sending instance

CR_CONGESTED_TIME

NUMBER

The time waited for CR blocks which were received by this instance from a particular instance and which were delayed because LMS was busy

CURRENT_BLOCK_TIME

NUMBER

Total time waited for CR blocks from a particular instance (includes the other times)

CURRENT_BUSY_TIME

NUMBER

The time waited for current blocks which were received by this instance from a particular instance and which were delayed by a log flushed on the sending instance

CURRENT_CONGESTED_TIME

NUMBER

The time waited for current blocks which were received by this instance from a particular instance and which were delayed because LMS was busy

LOST_TIME

NUMBER

The time waited for blocks that were sent by a particular instance but that never arrived in this instance

CR_2HOP_TIME

NUMBER

The time waited for CR blocks which were received by this instance from a particular instance after a 2-way round-trip

CR_3HOP_TIME

NUMBER

The time waited for CR blocks which were received by this instance from a particular instance after a 3-way round-trip

CURRENT_2HOP_TIME

NUMBER

The time waited for current blocks which were received by this instance from a particular instance after a 2-way round-trip

CURRENT_3HOP_TIME

NUMBER

The time waited for current blocks which were received by this instance from a particular instance after a 3-way round-trip

CON_DBID

NUMBER

The database ID of the PDB for the sampled session

CON_ID

NUMBER

The ID of the container that CON_DBID identifies. Possible values include:

• 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

• 1: This value is used for rows containing data that pertain to only the root

• n: Where n is the applicable container ID for the rows containing data