I Have a server System Configuration with
RAM size: 16GB Ram & Hard disk Size of 1TB.
I Installed Oracle 11g R2 in the server SystemI want to Allocate Dedicated Memory for oracle..How Should i calculate the Memory size of SGA+PGA for good Performance..
We are planning the RAC installations. We are allocate 3TB on HP SAN Storage to be used to setup rac environment with 2 nodes.
Question.
1. Do we accept one 3 TB from SAN engineers or ( Which RAID)
2. Multiple Luns totality to 3 TB.
3. Remember this is 11g R1 OCR and VOTING DISK cannot be managed by ASM.
difference between stripe attribute and the AU size.The ASM distributes the data in AU in the disk, and what the role of strip size in this case?
View 2 Replies View RelatedI am using 11g version, and trying to understand the Memory Allocation.
1) The new feature Memory target parameters are dynamic? is in it? But when I set with the ALTER SYSTEM... it was not changed, then I had to restart the DB.
2) With the new 2 parameters (MEMORY_MAX_TARGET, MEMORY_TARGET), the SGA_MAX_SIZE parameter should be 0, right? But in my case, the SGA_MAX_SIZE value is automatically assigned.
[URL] ...... Oracle Database 10g Express Edition Release 10.2.0.1.0 - Product
I have the following table
CREATE TABLE "ALLOCATEASSOCIATES"
( "PROJID" VARCHAR2(30) NOT NULL ENABLE,
"ASSOCIATEID" NUMBER(*,0) NOT NULL ENABLE,
"ALLOCATIONSTARTDATE" DATE,
"ALLOCATIONPERCENT" NUMBER(*,0),
[code]...
Given that
1. An associate must be allocated to at-least and a maximum of 100% at any given point of time
2. User selects 2 dates between which inconsistency of allocation needs to be displayed
If the end user selects 1st Apr 2012 and July 31st 2012 between which reports needs to be generated, am looking for the following output
ASSOCIATE_ID FROM_DATE TO_DATE ALLOCATION_INCONSISTENCY
2 01-APR-12 15-APR-12 75
2 16-APR-12 15-JUN-12 25
2 16-JUN-12 30-JUN-12 50
The Allocation_Inconsistency denotes that the associate has a deficit of allocation between the 2 dates. The associate with ID 2 has a deficit of 75% of allocation from 1st Apr 2012 till 15th Apr 2012. Similarly 25% deficit between 16th Apr 2012 and 15th June 2012 and so on so forth. However, there is no allocation deficit for the month of July as he is allocated 100% for this month and hence is not appearing in the expected output.
Phyical memory : 420G My database version : 11.2.0.3 running on linux machine.
Memory_target = 200G . I would like to allocate this value to following SGA components. I don't want to automatic memory management enabled. how to split 200G for following components. Is there any percentage for each components ?
db_cache_size
db_recycle_cache_size
db_keep_cache_size
large_pool_size
java_pool_size
shared_pool_size
pga_aggregate_target
streams_pool_size
log_buffer
I wanted to know what is the standard memory allocation for SGA & PGA in a normal installation of Oracle database 10g or 11g? Are the figures of 270M and 90M standard for a 10g or 11g installation using automatic memory management feature?
View 9 Replies View RelatedI want the output from two tables with rows to columns and generate dynamic basing on the columns.
For example: Table A (a1) , Table B(a1,b1)
Data: A B
------ ----
a1 a1 b1
--- ---- ----
1 1 x
2 1 y
3 2 a
2 b
2 c
o/p: Columnname col_1 col_2 col_3
-----------------------------------------------
a1 b1_1 b1_2 b1_3
----- ---------------------
1 x y
2 a b c
Columns should be generated based on the second table second column.
I want to change space allocation for character columns in my database, So it will store them as 'CHAR' and not 'BYTE'.my character set is
SQL> SELECT VALUE FROM V$NLS_PARAMETERS WHERE PARAMETER='NLS_CHARACTERSET';
VALUE
----------------------------------------------------------------
AL32UTF8
SQL> alter system set NLS_LENGTH_SEMANTICS='CHAR' scope=both;
System altered.I bounced the instance just to make sure
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
Connected to an idle instance.
SQL>
SQL>
SQL> startup
ORACLE instance started.
[code].....
And then I want to see that when I create a table with some varchar2 column,The space for it will be allocated by chars, and not by bytes! However, when I run a check of create table, this is what I get:
SQL> drop table check_char;
Table dropped.
SQL> create table check_char (some_name varchar2(10));
Table created.
SQL> select a.char_used
2 from all_tab_columns a
3 where table_name='CHECK_CHAR'
4 and a.owner='SYS';
C
-
B
SQL>
What is the reason for space allocation to remain in BYTES and not CHAR, or what else I can check?
while executing a clone script i got the below error : -
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 11/15/2011 20:07:34
RMAN-12010: automatic channel allocation initialization failed
RMAN-06758: DB_UNIQUE_NAME is not unique in the recovery catalog
Here i understand that RMAN couldn't find which SPFILE to use to restore the target DB.
How do i check for the DB_UNIQUE_NAME in recovery catalog?
The proposed solution that i found was Use the FOR DB_UNIQUE_NAME option to specify the name of the instance whose parameter file you want to restore. how to implement this in my clone script?
We are planning to export the table data to a file pipedelimited. How do i estimate the size of the FlatFile based on the table size? or avg rowlength
View 3 Replies View RelatedI am using oracle 8.1.5 database and my temp01.dbf file size is increased upto 19.8 GB now i want reduce its size .
View 13 Replies View Relatedi have few questions to ask.
1)How to find out the total size of my database.
2)what is dblink and how to find out the same.
One of my user is asking to give me the size(bytes) of row 39 and size(bytes) of row 49 of a table ZETR.
as i am not aware of how to collect size(bytes) for a particular row.
I have Oracle database.I take rman backup everyday.Also I set a scheduled backup script.But scheduled backup size is 166MB,but if I take manual rman backup(rman>backup database) this backup size will 2.8GB.This backup isn't incremental backup.
I wrote 3 batch script.Finally this backup script call
backup script:
run
{
backup database plus archivelog delete input format 'C:\db_11g_backup\backup\oracle_scheduled_backup\backups\%d_%t_%s.rman';
[Code]...
How to increase ASM DATA free size? I tried deleting expired backups and old archive logs which are backed up more than one time. Still no success ..
View 1 Replies View RelatedI'm having some issues with my NVarchar2 columns that I want to solve
My current NLS_CHARACTERSET is 'AL16UTF16', and therefore I can only create NVarchar2 columns with an maximum extension of 2000 bytes. But I do need a column with 4000 bytes length. How can I create an 4000 NVarchar2 column?
(I do not want to use a CLOB column...only a NVarchar2)
AS of we know that we can get the number of blocks occupied by data in a table by querying the user_tables Data Dictionary.
My questions are,
1.)how to know if i want the each block size ?(i.e each block size either it is 4kb or 8kb or 16kb..)?
2.) Is the block size is same for all blocks in a table and in Database or it varies?
3.)The block size is DB dependent or Table dependent or Machine dependent(32-bit, 64-bit and OS)?
I have a form that loads an image. Before storing the image on the database, I want to verify the size of the image. If the image is 0kb, I want to pop up a warning message and fail the load into the database.
I am using Forms 6i Version 6.0.8.23.2
I find posted and written in many places that the DB block size should be a multiple of the OS block size. I can't find any information, however, on how to find what the OS block size is for an OS. How to find the OS block size for Windows and UNIX systems (Solaris, Linux, and HP-UX)?
View 4 Replies View RelatedI've read the documentation that describes the storage management.I create a tablespace as:
CREATE TABLESPACE MY_TABLESPACE_NAME
DATAFILE 'path/filename1.dbf' SIZE 3000M AUTOEXTEND ON NEXT 200M MAXSIZE 4000M
LOGGING
ONLINE
PERMANENT
EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1M
BLOCKSIZE 8k
SEGMENT SPACE MANAGEMENT AUTO
FLASHBACK ON;
As the extent management is local, does it mean that any storage clause of the objects (tables, indexes etc.) placed in it isn't taken into consideration? I mean in a case of placing a table in the mentioned tablespace that has a storege parameters defined as follows:
CREATE TABLE MY_TABLE(
...
)
TABLESPACE MY_TABLESPACE_NAME
PCTFREE 10
INITRANS 1
MAXTRANS 255
STORAGE (
INITIAL 100M
NEXT 20M
MINEXTENTS 1
MAXEXTENTS 50
BUFFER_POOL DEFAULT
)
1. what will be the initial extent size? 1M or 100M?
2. what will be the next extent size? 1M or 20M?
3. will the maxextents parameter be taken into consideration?
4. when i'm sure the tablespace is dedicated to keep only one object [MY_TABLE], what should be the relation between the initial datafile size [filename1.dbf] and the initial extent size? Should they be iqual or doesn't matter?
5. as the SEGMENT SPACE MANAGEMENT is AUTO, the PCTFREE param doesn't make sense, right?
I am running Oracle 10.2.0.1.0 on MS Windows 2003 server 64-bit with 16G RAM.
Here is the findings for my Oracle database.
SQL> select * * from v$sgainfo;
NAME BYTES RES
-------------------------------- ---------- ---
Fixed SGA Size 1293560 No
Redo Buffers 7094272 No
Buffer Cache Size 830472192 Yes
[code]...
I find that the SGA component "Buffer Cache" is decreasing from the start "1.8G" and down to now 0.8G. On the other hand, the component "Shared Pool" is increasing from the start 0.3G to now 1.2G. I noticed that there are 100 operations of shrinking of "Buffer cache" and growth of "Shared Pool" in Oracle every day.Is it a indicator that I should raise up the SGA_MAX_SIZE?
I tried to increase the SGA_MAX_SIZE to 4G. But I cannot start the Oracle afterward.Is it a limitation of MS Windows(OS) or Oracle?I set the SGA_MAX_SIZE to 3G. This time, I can startup Oracle.What is the optimum/maximum I can set to SGA_MAX_SIZE?Is there any adverse effect/concern when setting the SGA_MAX_SIZE more than 2G?
What is By Default Buffer size in Oracle ......?
View 4 Replies View Relatedi am trying to enable flashback on in my database and i am getting the below error.
idle> alter database flashback on;
alter database flashback on
*
ERROR at line 1:
ORA-38706: Cannot turn on FLASHBACK DATABASE logging.
ORA-38708: not enough space for first flashback database log file
my db_recovery_file_dest_size is 1g. If i change it to 20g i am able to "alter database flashback on".
Why does a size of 1g give this proble? Any simple steps or recommendation that i am missing? Or is the size of the DB which impacts the db_recovery_file_dest_size also?
idle> select *from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
PL/SQL Release 11.1.0.7.0 - Production
CORE 11.1.0.7.0 Production
TNS for Linux: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
At a time my 20 GB undo tablespace was full. So i increased the tablespace size upto 48 GB. Then i saw 45 GB was used. Then i changed undo_retention=60. After that am seeing that 48 GB is full.
1) why it's happened?
2) Here what is the effect of undo_retention=60
3) How to resolve?.
I will be installing SOA Suite with OSB in Exalogic for testing. It is not for the production environment and very simple application will be used for testing. Database admin asked me what size database would be required but I did not find clear answer in the documentation anywhere.
View 0 Replies View RelatedI have table and it's size is full when i'm inserting records , records are not inserting , How can i increase table size
View 8 Replies View RelatedDoes size (number of rows) of table and corresponding indexes have influence on INSERT operations (bigger table - slower insert)?
I supposed that if select returns the same rows in small and big table, there will be no difference in performance?
is it Any way I can put the size of my redo log (During Install Oracle DB 11.1.0.7 )
I mean during installtion .??? becouse its by default 50 MB I need to be 200MB
I have a problem with one table.. First of all:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
The problem table resides in a locally managed tablespace. About 10 millions records is added in this table every day. After 36 hours all these records moved to another (partitioned) table, so the size of data in the problem table always about 75 Gb. But the size of table is reached 157 Gb today, and it still growing. The results of dbms_space.space_usage are showed below:
Size of blocks with:
0-25% free space: 4726784
25-50% free space: 17301504
50-75% free space: 24920064
75-100% free space: 102418669568
full blocks: 54761594880Thus, a lot of blocks have 75-100% free space but the table constantly growing: during last 9 days the size increased from 123 to 157 Gb.
how to stop the table growing? It there any way to limit the table size in locally managed tablespace?