Column Name  | Data Type  | Description  | 
ARRAY_NAME  | STRING  | Array name  | 
DISK_BUSY_PCT  | NUMBER  | Disk busy (percent) at collection time.  | 
DISK_LATENCY_MS  | NUMBER  | Disk latency (milliseconds) at collection time.  | 
DISK_RATE_IN_BPS  | NUMBER  | Disk rate: Disk write performance (bytes/second) at collection time.  | 
DISK_RATE_OUT_BPS  | NUMBER  | Disk rate: Disk read performance (bytes/second) at collection time.  | 
DRIVE_BAY_NBR  | NUMBER  | Drive Bay number.  | 
ISI_DRIVE_BAY_ID  | NUMBER  | Drive Bay ID, for internal use by the Hitachi Storage Viewer database.  | 
ISI_NODE_ID  | NUMBER  | Node ID, for internal use by the Hitachi Storage Viewer database.  | 
ISI_STORAGE_SYSTEM_ID  | NUMBER  | Storage system ID, for internal use by the Hitachi Storage Viewer database.  | 
LOG_DATE  | DATE  | Date and time the samples were collected.  | 
NODE_NAME  | STRING  | Node name  | 
OPERATION_RATE_IN_OPS  | NUMBER  | Disk rate: Disk write performance (IOPS) at collection time.  | 
OPERATION_RATE_OUT_OPS  | NUMBER  | Disk rate: Disk read performance (IOPS) at collection time.  |