Oracle Cluster Editor - Storage Tab
The Storage tab is used for assigning storage properties for the selected cluster. The following describes the options for the Storage tab in the Oracle Cluster Editor:
- TABLESPACE
-
A drop-down list box where you can select a tablespace from the current model to which you assign storage properties. If you need to edit the properties of a tablespace you select, click the
button to open the Oracle Tablespace Editor.
- Extents
-
Enter values for the following options for Extents:
- INITIAL
-
Specify in bytes the size of the object's first extent. Also select a value from the drop-down list
- NEXT
-
Specify in bytes the size of the next extent to allocate to the object, and select a value from the drop-down list.
- PCTINCREASE
-
Specify the percent by which the third and subsequent extents grow over the preceding extent.
- MINEXTENTS
-
Specify the total number of extents to allocate when the object is created.
- Maxextents
-
Specifies the total number of extents, including the first, that Oracle can allocate for the object. When you select this option, select one of the following options for Maxextents:
- UNLIMITED
- VALUE
-
If you select this option, enter a value in the text box.
- Space Usage
-
Enter values for the following options for Space Usage:
- PCTFREE
-
Specifies the limit Oracle should use to determine when additional rows can be added. The value of this parameter is expressed as a whole number and interpreted as a percentage.
- PCTUSED
-
Specifies the space to be reserved for each data block for future expansion. The value of this parameter is expressed as a whole number and interpreted as a percentage.
- Buffer Pool
-
Select this check box if you want to specify a default buffer pool. When you select this option, select one of the following options:
- KEEP
-
Puts blocks from the segment into the KEEP buffer pool.
- RECYCLE
-
Puts blocks from the segment into the RECYCLE buffer pool.
- DEFAULT
-
Specifies DEFAULT to indicate the default buffer pool.
- Number Transactions
-
Enter the value for the following option for Number Transactions:
- INITRANS
-
Specify the initial number of concurrent update transactions allocated for data blocks.
- Freelists
-
Enter values for the following options for Freelists:
- FREELISTS
-
For objects other than tablespaces, specify the number of free lists for each of the free list groups for the table, partition, cluster, or index.
- FREE GROUPS
-
Specifies the number of groups of free lists for the database object you are creating.
Note: For more information about the values for these options, see your vendor's SQL documentation.
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