DBA_HIST_INST_CACHE_TRANSFER displays the historical statistics on the cache blocks transferred among instances. This view contains snapshots of V$INSTANCE_CACHE_TRANSFER.
| Column | Datatype | NULL | Description |
|---|---|---|---|
SNAP_ID |
NUMBER |
Unique snapshot ID | |
DBID |
NUMBER |
Database ID for the snapshot | |
INSTANCE_NUMBER |
NUMBER |
Instance number for the snapshot | |
INSTANCE |
NUMBER |
Instance from which the blocks are transferred | |
CLASS |
VARCHAR2(18) |
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 |