Re: LOB Space Reclaim Procedure Issue

2009-01-22 Thread Chowdhury, Tauf
Duy,

I remember our Oracle DBA saying something about running a job that
actually "releases the data".

So even if you delete rows, the space isn't freed up until some job is
run. 

Obviously this isn't a solution but hopefully it points you in the right
direction.

 

Tauf Chowdhury 

Analyst, Service Management

Office: 631.858.7765

Mobile:646.483.2779

 

 

 

From: Action Request System discussion list(ARSList)
[mailto:arsl...@arslist.org] On Behalf Of Duy Do
Sent: Thursday, January 22, 2009 5:49 PM
To: arslist@ARSLIST.ORG
Subject: LOB Space Reclaim Procedure Issue

 

** 

Hi List,

 

As per a BMC supplied white paper document to reclaim space, we moved
LOBs from "Out of Row" to "In Row" which we gained space about 19GB out
of 32GB in ARSystem tablespace.

 

After initial testings, the following results were observed

 

 

Table Name

LOB Name

Operation

Initial Size (MB)

Final Size (MB)

B876C18004

C18004

Insert 5000 rows

288

288

B876C18004

C18004

Delete 5000 rows

288

288

B876C18004

C18004

Insert 5000 rows

288

360

 

This shows that Oracle has not re-used the Deleted space during the 2nd
Insert.

 

Has anyone encountered a similar problem and know of a resolution. Any
help would be greatly appreciated!!!

 

We are running on Oracle Database 10g Release 10.2.0.2.0 - 64bit version
on Sun Solaris Version 10, 64 bit Platform.

 

Thank you in advance,

 

Duy Do

Broadcast Australia

 

 

 



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LOB Space Reclaim Procedure Issue

2009-01-22 Thread Duy Do
Hi List,

 

As per a BMC supplied white paper document to reclaim space, we moved
LOBs from "Out of Row" to "In Row" which we gained space about 19GB out
of 32GB in ARSystem tablespace.

 

After initial testings, the following results were observed

 

 

Table Name

LOB Name

Operation

Initial Size (MB)

Final Size (MB)

B876C18004

C18004

Insert 5000 rows

288

288

B876C18004

C18004

Delete 5000 rows

288

288

B876C18004

C18004

Insert 5000 rows

288

360

 

This shows that Oracle has not re-used the Deleted space during the 2nd
Insert.

 

Has anyone encountered a similar problem and know of a resolution. Any
help would be greatly appreciated!!!

 

We are running on Oracle Database 10g Release 10.2.0.2.0 - 64bit version
on Sun Solaris Version 10, 64 bit Platform.

 

Thank you in advance,

 

Duy Do

Broadcast Australia

 


**

  IMPORTANT NOTICE
This email and any attachments may be confidential and/or 
privileged, in which case neither is intended to be waived. If 
received in error, please contact us and delete all copies. Before 
opening or using attachments, check them for viruses and defects. 
Our liability is limited to resupplying any affected attachments.


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