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How do I run Asmcmd?

Guidelines

How do I run Asmcmd?

Preparing to Run ASMCMD

  1. Log in to the host which contains the Oracle ASM instance that you plan to administer.
  2. To connect to the Oracle ASM instance, run ASMCMD that is located in the bin subdirectory of the Oracle Grid Infrastructure home (Oracle ASM home).

How do I list files in ASM?

The ASMCMD ls (list directory) command lists the contents of the current directory, while the pwd command prints the name of the current directory. You can also create your own directories as subdirectories of the system-generated directories. You do so with the ALTER DISKGROUP command or with the ASMCMD mkdir command.

How do you list files and sizes within an ASM disk group?

How To List Files and Sizes within an ASM Disk Group

  1. select f. group_number, f. file_number, bytes, space, space/(1024*1024) “InMB”, a. name “Name”
  2. from v$asm_file f, v$asm_alias a.
  3. where f. group_number=a. group_number and f. file_number=a. file_number.
  4. order by f. group_number, f. file_number;

How do I check disk in ASM?

To see all disks, use V$ASM_DISKGROUP instead. Contains one row for every Oracle ASM file in every disk group mounted by the Oracle ASM instance. In an Oracle ASM instance, contains one row for every active Oracle ASM long running operation executing in the Oracle ASM instance.

How do I connect to ASM prompt?

To run ASMCMD in interactive mode:

  1. Enter the following at the OS command prompt: $ asmcmd.
  2. Enter an ASMCMD command and press Enter. The command runs and displays its output, and then ASMCMD prompts for the next command.
  3. Continue entering ASMCMD commands. Enter the command exit to exit ASMCMD.

How do I connect to an ASM instance?

How to connect to ASM instance from a remote client

  1. Edit the listener.ora on ASM server.
  2. Edit the tnsnames.ora on the client.
  3. Setup your remote login password for your ASM instance on the ASM server.
  4. Set your SYS password using ORAPWD for the ASM instance.

Where is my ASM disk path?

In Linux, ASMLib provides the wrapper for managing the ASM disks. To identify the underlying physical device that the ASM disk point to, you can use the oracleasm querydisk command. The querydisk option will list the major and minor numbers that can be used to match the physical device.

How can I tell if a database is using ASM?

Also, you can check if you have an ASM instance running as a service. Check Windows Explorer to see if your datafiles are on the file system or can’t be seen(meaning you are on ASM). you could do that too…if the datafiles show up as DISK1 etc…with the sign prefix, it means you are on ASM…

How do I manually start an ASM?

Startup and shutdown the Oracle ASM instance

  1. Set the default Oracle_home environment variable to grid home where ASM is installed. EXPORT ORACLE_HOME=/up1/grid/12.2.0/dbhome_1.
  2. Connect with sqlplus. SQLPLUS / as sysasm.
  3. Start up the Oracle ASM Instance. SQL> STARTUP.
  4. Check the spfile location or otherwise set it with.

How do I run a Crsctl command?

You can use the following commands in either the Oracle RAC or the Oracle Restart environments:

  1. crsctl add resource.
  2. crsctl add type.
  3. crsctl check css.
  4. crsctl delete resource.
  5. crsctl delete type.
  6. crsctl get hostname.
  7. crsctl getperm resource.
  8. crsctl getperm type.

How do I run Oracle ASM Scandisks?

Solution 1

  1. First check if the oracleasm modules are loaded and /dev/oracleasm is mounted on the system first. Use the below command:
  2. In order to load the modules and mount /dev/oracleasm, use the below command: # oracleasm init.
  3. verify the status of module:
  4. Try rescanning the disks again.

How do I connect to ASM on toad?

Toad cannot connect to an ASM Oracle Instance directly like it does to other normal databases instances. Toad has a function called ASM Manager. It is located in the Database | Administer | ASM Manager. Use this to connect to ASM instances.

How do I start ASM with Srvctl?

  1. SRVCTL command for ASM.
  2. To add/remove the ASM Command: srvctl add asm [-l lsnr_name] [-p spfile] [-d asm_diskstring] Command: srvctl remove asm -l [-f] Example: srvctl add asm -l LISTENER_ASM01 -p +diskg_data/spfile.ora Example: srvctl remove asm -l LISTENER_ASM01 -f.

How do I rescan ASM disk?

How to Force ASM to Scan the Multipathed Device First using ASMLIB/oracleasm

  1. Shutdown all (DB and ASM):
  2. For backup, make a copy of your current /etc/sysconfig/oracleasm and /etc/sysconfig/oracleasm-_dev_oracleasm files.
  3. As root user, save the file (oracleasm-_dev_oracleasm).
  4. Restart oracleasm (as root):

How do I mount an ASM disk?

Manage ASM Disk and Diskgroup information in Oracle

  1. Check the Size and free space in ASM Disks. set pagesize 200.
  2. Check the Size and free space in ASM Diskgroup.
  3. Check the ASM Disk stats.
  4. Mount and Dismount ASM Disk group.
  5. Drop the ASM Disk.
  6. Monitor the Rebalance operation.
  7. Drop ASM Disgroup.
  8. Create ASM Disk in Linux.

How do I log into an ASM instance?

Where is ASM disk path in Oracle?

To identify the underlying physical device that the ASM disk point to, you can use the oracleasm querydisk command. The querydisk option will list the major and minor numbers that can be used to match the physical device. The following example was run on a virtual server hosting ASM and an Oracle database.

How do I start ASM instance with Pfile?

Starting Up an Oracle ASM instance with an Incorrect SPFILE Path

  1. Create a PFILE with one line in it that identifies the path to the SPFILE.
  2. Start up the instance using the initialization parameter file.
  3. After the instance is running, use the ASMCMD spset command to update the SPFILE path in the GPnP profile.

How do I start a CRS?

  1. Step 1: Prepare the New Cluster Nodes.
  2. Step 2: Deploy the Oracle Grid Infrastructure Home on the Destination Nodes.
  3. Step 3: Run the clone.pl Script on Each Destination Node.
  4. Step 4: Launch the Configuration Wizard.

How do I start Crsctl?

What are the options for the lsdg command in ASM?

Table 10-48 lists the options for the lsdg command. Displays the disk group attributes listed in Table 10-49. Selects from V$ASM_DISKGROUP, or from GV$ASM_DISKGROUP if the -g flag is also specified. This option is always enabled if the Oracle ASM instance is version 10.1 or earlier. This flag is disregarded if lsdg is running in non-connected mode.

What does lsod do in Oracle ASM?

Lists the open Oracle ASM disks. Table 10-64 lists the syntax options for the lsod command. Suppresses column header information from the output. Specifies the disk group that contains the open disks. Specifies a pattern to filter the list of processes.

What are the asmcmd instance management commands?

Table 10-18 Summary of ASMCMD instance management commands Retrieves the discovery diskstring value that is used by the Oracle ASM instance and its clients. Sets the disk discovery diskstring value that is used by the Oracle ASM instance and its clients. Lists information about current Oracle ASM clients.

What is the output of the lsdg command?

The output also includes notification of any current rebalance operation for a disk group. If a disk group is specified, then lsdg returns only information about that disk group. Table 10-48 lists the options for the lsdg command. Displays the disk group attributes listed in Table 10-49.