C.2.4 DBA_HIST_ASM_DISK_STAT_SUMMARY
The DBA_HIST_ASM_DISK_STAT_SUMMARY view displays historic summary
                information about Oracle ASM disk groups. It aggregates information from
                    V$ASM_DISK_STAT.
                  
| Column | Datatype | NULL | Description | 
|---|---|---|---|
| 
                               
  | 
                           
                               NUMBER  | 
                           
                               NOT NULL  | 
                           
                               Unique snapshot identifier.  | 
                        
| 
                               
  | 
                           
                               NUMBER  | 
                           
                               NOT NULL  | 
                           
                               Database identifier for the snapshot.  | 
                        
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               NOT NULL  | 
                           
                              
                               Database instance number.  | 
                        
| 
                               
  | 
                           
                               NUMBER  | 
                           
                               NOT NULL  | 
                           
                               Cluster-wide number assigned to the disk group.  | 
                        
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total number of I/O read requests for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total number of I/O write requests for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total number of failed I/O read requests for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total number of failed I/O write requests for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total number of failed I/O read requests that are timed out for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total number of failed I/O write requests that are timed out for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total I/O time (in seconds) for read requests for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total I/O time (in seconds) for write requests for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total number of bytes read for all disks in the disk group.  | 
                        |
| 
                              
                               
  | 
                           
                              
                               NUMBER  | 
                           
                              
                               Total number of bytes written for all disks in the disk group.  | 
                        |
| 
                               
  | 
                           
                               NUMBER  | 
                           
                               The database identifier.  | 
                        |
| 
                               
  | 
                           
                               NUMBER  | 
                           
                               The identifier of the container identified by CON_DBID. Possible values are as follows: 
  | 
                        
Parent topic: Automatic Workload Repository Views