ASMCMD File Group Management Commands

This topic provides a summary of the ASMCMD commands that enable you to manage Oracle ASM file groups and quota groups.

The following table lists the ASMCMD file group and quota group commands with brief descriptions.

Table 10-78 Summary of ASMCMD file group commands

Command	Description
chfg	Modifies a file group in a disk group based on an XML configuration file or script.
chqg	Modifies a quota group in the disk group.
lsfg	List file groups in a disk group.
lsqg	Lists the quota groups in a disk group.
mkfg	Creates a file group in a disk group based on an XML configuration file or script.
mkqg	Adds a quota group to the disk group.
mvfg	Moves a file group in a disk group to the specified quota group.
mvfile	Moves a file to the specified file group in the same disk group where the file is stored.
rmfg	Removes an existing file group from a disk group.
rmqg	Drops a quota group from a disk group.

chfg

Purpose

Changes the attributes of a file group in a disk group based on an XML configuration file or script.

Syntax and Description

chfg { config_file.xml | 'contents_of_xml_script' }

The following table lists the options for the chfg command.

Table 10-79 Options for the chfg command

Option	Description
`config_file.xml`	Name of the XML file that contains the changes for the file group. `chfg` searches for the XML file in the current working directory of ASMCMD unless a path is specified
`contents_of_xml_script.xml`	The contents of an XML script enclosed in single quotes.

The root element of the XML configuration file or script is the <file_group> tag and has these attributes:

name: file group name
dg: disk group name to which the file group belongs

You can set properties using these tag:

name: property name
value: property value
file_type: property file type (optional)
template: Oracle ASM template name (optional)

The following is an example of an XML configuration file for chfg. The configuration file alters a file group named filegroup1 on disk group dg_data1. The file group is associated with quota group quotagroup1.

<filegroup name="filegroup1" dg="dg_data1">
  <p name="quota_group" value="quotagroup1"/>
</filegroup>

For information about Oracle ASM File Groups, refer to Managing Oracle ASM Flex Disk Groups.

Example

The following examples show the use of the chfg command using an XML configuration file and an XML script.

Example 10-83 Using the chfg command

ASMCMD [+] > chfg config_file.xml

ASMCMD [+] > chfg '<filegroup name="filegroup1" dg="dg_data1"> 
                  <p name="redundancy" value="high"/> 
                  </filegroup>'

chqg

Purpose

Modifies a quota group in the disk group.

Syntax and Description

chqg -G disk_group quota_group property value

The following table lists the options for the chqg command.

Table 10-80 Options for the chqg command

Option	Description
`-G disk_group`	Specifies the disk group.
`quota_group`	Specifies the quota group.
`property`	Specifies the name of the property.
`value`	Specifies the value of the property.

The chqg command modifies the specified property in the specified quota group of the specified disk group. For information about Oracle ASM File and Quota Groups, refer to "Managing Oracle ASM Flex Disk Groups".

The following are examples of the chqg command. The first example modifies the quota property of the quota group quota_grp1 in the data disk group. The second example modifies the quota property of the quota group quota_grp2 in the data disk group.

Example 10-84 Using the chqg command

ASMCMD [+] > chqg -G data quota_grp1 quota 200G

ASMCMD [+] > chqg -G data quota_grp2 quota UNLIMITED

lsfg

Purpose

List file groups in a disk group.

Syntax and Description

lsfg [-G disk_group] [--filegroup file_group] [--suppressheader]

The following table lists the options for the lsfg command.

Table 10-81 Options for the lsfg command

Option	Description
`-G disk_group`	Specifies the disk group.
`—filegroupfile_group`	Specifies the file group.
`—suppressheader`	Suppresses the headers in the output of the command.

If the disk group option is specified, then lsfg returns only information about file groups in the specified disk group. If the file group option is specified, then lsfg returns only information about that file group.

The information about file groups is retrieved from V$ASM_FILEGROUP and V$ASM_FILEGROUP_PROPERTY views.

The following example shows the use of thelsfg command. The first command in the example displays the properties of the file group FG1 in the DATA disk group. The second command lists all the file groups and their properties in the DATA disk group.

Example 10-85 Using the lsfg command

ASMCMD [+] > lsfg -G DATA
File Group         Disk Group  Quota Group  Used Quota MB  Client Name  Client Type  
DEFAULT_FILEGROUP  DATA        GENERIC      0                                        
VOLUME1            DATA        GENERIC      3123           VOLUME1      VOLUME       
ORCL               DATA        GENERIC      5488           ORCL         DATABASE

ASMCMD [+] > lsfg -G DATA --filegroup ORCL
File Group  Disk Group  Property           Value       File Type                  
ORCL        DATA        PRIORITY           MEDIUM                                 
ORCL        DATA        STRIPING           COARSE      CONTAINER                  
ORCL        DATA        REDUNDANCY         HIGH        CONTROLFILE                
ORCL        DATA        STRIPING           FINE        CONTROLFILE                
ORCL        DATA        REDUNDANCY         MIRROR      DATAFILE                   
ORCL        DATA        STRIPING           COARSE      DATAFILE   
...

lsqg

Purpose

Lists the quota groups in a disk group.

Syntax and Description

lsqg [-G disk_group] [--quotagroup quota_group] [--suppressheader]

The following table lists the options for the lsqg command.

Table 10-82 Options for the lsqg command

Option	Description
`-G disk_group`	Specifies the disk group.
`—quotagroupquota_group`	Specifies the quota group.
`—suppressheader`	Suppresses the headers in the output of the command.

If the disk group option is specified, then lsqg returns only information about quota groups in the specified disk group. If the quota group option is specified, then lsqg returns only information about that quota group.

The information about file groups is retrieved from V$ASM_QUOTAGROUP view.

The following example shows the use of thelsqg command. The first command in the example displays the properties of the file group QG1 in the DATA disk group. The second command lists all the quota groups and their properties in the DATA disk group. The third command lists all the quota groups with name QG1 in all the disk groups mounted by the current Oracle ASM instance. The fourth command lists all the quota groups in all the disk groups mounted by the current Oracle ASM instance.

Example 10-86 Using the lsqg command

ASMCMD [+] > lsqg -G DATA --quotagroup QG1
Used_Quota_MB  Quota_Limit_MB
100            200

ASMCMD [+] > lsqg -G DATA
Quotagroup_Num  Quotagroup_Name  Used_Quota_MB  Quota_Limit_MB
1               GENERIC          12357          262143
2               QG1              100            200
3               QG2              400            420

ASMCMD [+] > lsqg --quotagroup QG1
Group_Num  Quotagroup_Num  Used_Quota_MB  Quota_Limit_MB
1          2               100            200
3          5               821            1024

ASMCMD [+] > lsqg
Group_Num  Quotagroup_Num  Quotagroup_Name  Used_Quota_MB  Quota_Limit_MB
1          1               GENERIC          12357          262143
1          2               QG1              100            200
1          3               QG2              400            420
2          1               GENERIC          54000          262143
3          1               GENERIC          11             262143
3          5               QG1              821            1024

mkfg

Purpose

Creates a file group in a disk group based on an XML configuration file or script.

Syntax and Description

mkfg { config_file.xml | 'contents_of_xml_script' }

The following table lists the options for the mkfg command.

Table 10-83 Options for the mkfg command

Option	Description
`config_file.xml`	Name of the XML file that contains the configuration information for the file group. `mkfg` searches for the XML file in the current working directory of ASMCMD unless a path is specified
`contents_of_xml_script.xml`	The contents of an XML script enclosed in single quotes.

The root element of the XML configuration file or script is the <file_group> tag and has these attributes:

name: file group name
dg: disk group name to which the file group belongs
client_type: database, cluster, volume
client_name: database, CDB, PDB, cluster or volume name

You can set properties using these tag:

name: property name
value: property value
file_type: property file type (optional)
template: Oracle ASM template name (optional)

The following is an example of an XML configuration file for mkfg. The configuration file creates a file group named filegroup1 on disk group dg_data1 for a database named sample. The file group is associated with quota group quotagroup1. The files in this file group have the redundancy set to mirror, except for the control file, which has a high redundancy. All other attributes are set to the default value.

<filegroup name="filegroup1" dg="dg_data1" client_type="database" client_name="sample">
  <p name="redundancy" value="mirror"/>
  <p name="redundancy" value="high" file_type="controlfile"/>
  <p name="quota_group" value="quotagroup1"/>
</filegroup>

For information about Oracle ASM File Groups, refer to "Managing Oracle ASM Flex Disk Groups".

Example

The following examples show the use of the mkfg command using an XML configuration file and an XML script.

Example 10-87 Using the mkfg command

ASMCMD [+] > mkfg config_file.xml

ASMCMD [+] > mkfg '<filegroup name="filegroup1" dg="dg_data1" client_type="database" client_name="sample"> 
                   </filegroup>'

mkqg

Purpose

Adds a quota group to the disk group.

Syntax and Description

mkqg -G disk_group quota_group [property] [value]

The following table lists the options for the chqg command.

Table 10-84 Options for the mkqg command

Option	Description
`-G disk_group`	Specifies the disk group.
`quota_group`	Specifies the quota group.
`property`	Specifies the name of the property.
`value`	Specifies the value of the property.

The mkqg command adds the specified quota group with an optional the specified property to the specified disk group. For information about Oracle ASM file and quota groups, refer to "Managing Oracle ASM Flex Disk Groups".

The following are examples of the mkqg command. The first example adds the quota group quota_grp1 to the data disk group without specifying a property. The second example adds the quota group quota_grp2 to the data disk group while specifying the quota property.

Example 10-88 Using the mkqg command

ASMCMD [+] > mkqg -G data quota_grp1

ASMCMD [+] > mkqg -G data quota_grp2 quota 100G

mvfg

Purpose

Moves a file group in a disk group to the specified quota group.

Syntax and Description

mvfg -G disk_group --filegroup file_group quota_group

The following table lists the options for the mvfg command.

Table 10-85 Options for the mvfg command

Option	Description
`-G disk_group`	Specifies the disk group.
`—filegroupfile_group`	Specifies the file group.
`quota_group`	Specifies the quota group.

The following is an example of the mvfg command. In the example, the file group FG1 in the DATA disk group is moved to the quota group QG1

Example 10-89 Using the mvfg command

ASMCMD [+] > mvfg -G DATA --filegroup FG1 QG1

mvfile

Purpose

Moves a file to the specified file group in the same disk group where the file is stored.

Syntax and Description

mvfile file_name --filegroup file_group

The following table lists the options for the mvfile command.

Table 10-86 Options for the mvfile command

Option	Description
`file_name`	Specifies the file to be moved.
`—filegroup file_group`	Specifies the file group name.

The following mvfile commands move the specified Oracle ASM file to the named file group.

Example 10-90 Using the mvfile command

ASMCMD [+] > mvfile +data/orcl/controlfile/Current.260.684924747 --filegroup FG1

ASMCMD [+fra/orcl/archivelog/flashback] > mvfile log_7.264.684968167 --filegroup FG1

rmfg

Purpose

Removes an existing file group from a disk group.

Syntax and Description

rmfg [-r] disk_group file_group

The following table lists the options for the rmfg command.

Table 10-87 Options for the rmfg command

Option	Description
`-r`	Specifies a recursive operation.
`disk_group`	Specifies the disk group.
`file_group`	Specifies the file group.

The -r option specifies a recursive removal, including contents. All files in the disk group that the file group contains are removed at the same time that the file group is removed. You must specify this option to remove a file group that contains any files. If you omit this option and the file group is not empty, then ASMCMD returns an error and does not remove the file group.

The following example shows the use of the rmfg command. The first command in the example removes file group FG1 from the DATA1 disk group. The second command removes file group FG2, and its contents, from the DATA2 disk group.

Example 10-91 Using the rmfg command

 ASMCMD [+] > rmfg DATA1 FG1
 ASMCMD [+] > rmfg -r DATA2 FG2

rmqg

Purpose

Removes a quota group from a disk group.

Syntax and Description

rmqg -G disk_group quota_group

The following table lists the options for the rmqg command.

Table 10-88 Options for the rmqg command

Option	Description
`-G disk_group`	Specifies the disk group.
`quota_group`	Specifies the quota group.

The following example shows the use of the rmqg command. The command in the example removes quota group QG1 from the DATA disk group.

Example 10-92 Using the rmqg command

ASMCMD [+] > rmqg -G DATA QG1