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Status Submitted
Workspace IBM Engineering - Foundation/Common Services
Categories Installation Installation
Created by Guest
Created on Dec 13, 2024

RELATED IDEAS

Table space limitation of 30TBs per tablespace even when activating bigfile in Oracle database

Oracle limitation of 30TBs per tablespace

 

Move the lob segments of table REPOSITORY_CONTENT_STORAGE to a separate tablespace with 32K block size, which would give us a big file with 128TB size.

 

This would mean to change the definition of the mentioned table as follows within the IBM CCM software:

 

  1. set Parameter db_32k_cache_size first:

SQL

alter system set db_32k_cache_size=128M scope=BOTH sid='*';

 

2.  create a tablespace with the following statement:

SQL

CREATE BIGFILE TABLESPACE "CCM1_LOB" DATAFILE 
 SIZE 1000G
 AUTOEXTEND ON NEXT 500G MAXSIZE 128T
 LOGGING ONLINE PERMANENT BLOCKSIZE 32768
 EXTENT MANAGEMENT LOCAL AUTOALLOCATE DEFAULT 
NOCOMPRESS  SEGMENT SPACE MANAGEMENT AUTO;

 

3. Change the table definition:

 

SQL

ALTER TABLE CCM1USER.REPOSITORY_CONTENT_STORAGE MOVE LOB CONTENT_BYTES 
STORE AS BASICFILE (
TABLESPACE "CCM1_LOB" ENABLE STORAGE IN ROW CHUNK 32768 RETENTION 
NOCACHE LOGGING 
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) ;

 

 

Idea priority Urgent
Needed By Yesterday (Let's go already!)
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