版次注意事項


|7.1 Adding or Extending DMS Containers (New Process)

| |

|DMS containers (both file containers and raw device containers) which are |added (during tablespace creation or after) or extended are now done so in |parallel through the prefetchers. To achieve an increase in parallelism of |these create / resize container operations, one can increase the number of |prefetchers running in the system. The only process which is not done in parallel |is the logging of these actions and, in the case of creating containers, the |tagging of the containers.

|Note:
Parallelism of the CREATE TABLESPACE / ALTER TABLESPACE (with |respect to adding new containers to an existing tablespace) will no longer |increase when the number of prefetchers equals the number of containers being |added. |


[ 頁面頂端 | 前一頁 | 下一頁 | 目錄 | 索引 ]